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Honeywell Aerospace Electronic Systems CES - Phoenix P.O. Box 21111 Phoenix, Arizona 85036-1111 U.S.A

This document is the Component Maintenance Manual for the Auxiliary Power Unit Panel, Part No. 4059028, and includes significant updates and revisions as of February 1, 2002. It replaces the previous manual and contains new publication details, technical changes, and reformatted sections, along with a comprehensive list of changes made. The manual is proprietary to Honeywell and is subject to U.S. export regulations.

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0% found this document useful (0 votes)

35 views145 pages

Honeywell Aerospace Electronic Systems CES - Phoenix P.O. Box 21111 Phoenix, Arizona 85036-1111 U.S.A

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RELEASED FOR THE EXCLUSIVE USE BY: HONEYWELL EMPLOYEE AMERICAS

Honeywell
Aerospace Electronic Systems
CES--Phoenix
P.O. Box 21111
Phoenix, Arizona 85036-1111
U.S.A.

TO HOLDERS OF COMPONENT MAINTENANCE MANUAL, PUB. NO. 15--2546--09

AUXILIARY POWER UNIT PANEL (PART. NO. 4059028--901)

REVISION NO. 5 DATED 1 FEB 2002

HIGHLIGHTS
This revision is a full replacement of Pub. No. 15--2546--09, dated 1 May 1989 and revised 1 Feb
1997. This manual is revised as new Pub. No. C15--2546--009. All units pages have a new
publication date, as identified in the List of Effective Pages. Revision bars are not used for
reformatted pages. Revision bars are used for technical changes. Changes to the Illustrated Parts
List are identified by an “R” in the margin.

Page Description of Change Effectivity

T--1, T--2, LEP--1 Revised to show the revision date of this manual. Changed All units
thru LEP--4 the Honeywell name and address. Added --902 as a new
part number.
H--1, H--2 Deleted the Materials Hazard Rating Code pages because All units
safety information and ratings are the responsibility of the
material manufacturer.
RTR--1 Updated Record of Temporary Revisions page to reflect the All units
Incorporation of Temporary Revision No. 2 into the manual.
SBL--1 Added modification details from Service Bulletin All units
4059028--49--0001 (Pub. No. C21--2546--087).
TC--1 thru TC--6 Reformatted section and revised to show the location of the All units
data in this manual.
INTRO--1 thru Reformatted section. Added Proprietary, Export, and All units
INTRO--6 Precautionary Data, list of referenced publications, and
revised verification dates.
INTRO--2, 1001, Added WARNINGS, and CAUTIONS. All units
2001, 3001, 4002,
4003, 5001, 6003,
7001, 15002
1 thru 10 Reformatted section. All units
8 Changed agent 3 power to read agent 3 arm power. All units
1001 thru 1030 Reformatted section. Moved Revision Reference Sheet, and All units
the APUP schematic diagram to SCHEMATIC AND WIRING
DIAGRAMS section.
1001, 1003, 1013, Incorporated Temporary Revision No. 2, sheets 1 thru All units
and 1014 sheet 6. Revised IT4059028--901, Revision G to
IT4059028--901, Revision H.
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COMPONENT MAINTENANCE MANUAL

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Page Description of Change Effectivity

2001 thru 2016 Added SCHEMATIC AND WIRING DIAGRAMS section to All units
contain Revision Reference Sheet, the APUP schematic
diagram (Figure 2001), and Wire List No. 4060077--901,
Revision E. Revision bars are not used.
3001 thru 3004 Reformatted section. All units
4001 thru 4004 Reformatted section. All units
4001, 6001, 7001, Updated hazardous materials WARNING. All units
and 9001.
4001, 6001, 6002, Revised equipment and materials lists. Removed the All units
6003, 7001, 9003, hazard rating codes shown in the materials lists. Refer to
9004, 9005 the manufacturer’s data sheets for safety information.
Added Table 9002 (Materials for Maintenance).
5001, 5002 Reformatted section. All units
6001 thru 6010 Reformatted section. All units
6003, 6004 Added section 2.A. References for Repair. All units
6006, 6008 Added Bell Part No. 800--0000208--1 and Bell Part No. All units
100--310004--2 to text.
7001 thru 7004 Reformatted section. Revised Wire List No. 4060077--901, All units
Revision D to Revision E and moved Wire List No.
4060077--901, Revision E to SCHEMATIC AND WIRING
DIAGRAMS section. Moved Storage instructions to
STORAGE (INCLUDING TRANSPORTATION) section.
7002 Revised installation of edgelight panel connector procedure. All units
8001, 8002 Reformatted section. Added fits and clearances for All units
edgelight panel connector.
9001 thru 9004 Reformatted section. All units
10001 thru 10026 Reformatted section. Revised the parts list to give new parts All units
data.
15001 thru 15004 Added STORAGE (INCLUDING TRANSPORTATION) All units
section. No revision bars are used.
DELETED PAGES
Temporary Revision Temporary Revision incorporated in this revision. All units
No. 2 (Pages 1 thru
6)
H--1, H--2 Materials Hazard Rating Code pages are no longer needed. All units
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Honeywell
Aerospace Electronic Systems
CES--Phoenix
P.O. Box 21111
Phoenix, Arizona 85036-1111
U.S.A.

Component Maintenance Manual

with illustrated parts list

Auxiliary Power Unit Panel

Part No. 4059028--901,--902

This document contains technical data and is subject to U.S. export regulations.
These commodities, technology, or software were exported from the United States in accordance with the
export administration regulations. Diversion contrary to U.S. law is prohibited.

49--04--01
UP802726

Title Page T--1

Printed in U.S.A. Pub. No. C15--2546--009, Revision 5 Revised 1 Feb 2002
(Formerly 15--2546--09) 1 May 1989
RELEASED FOR THE EXCLUSIVE USE BY: HONEYWELL EMPLOYEE AMERICAS

COMPONENT MAINTENANCE MANUAL

Auxiliary Power Unit Panel / Part No. 4059028

PROPRIETARY NOTICE

This document and the information disclosed herein are proprietary data of Honeywell. Neither
this document nor the information contained herein shall be used, reproduced, or disclosed to
others without the written authorization of Honeywell, except to the extent required for
installation or maintenance of the recipient’s equipment.
NOTICE -- FREEDOM OF INFORMATION ACT (5 USC 552) AND
DISCLOSURE OF CONFIDENTIAL INFORMATION GENERALLY (18 USC 1905)
This document is being furnished in confidence by Honeywell. The information disclosed
herein fall within exemption (b) (4) of 5 USC 552 and the prohibitions of 18 USC 1905.
S2002

Honeywell is a U.S. registered trademark of Honeywell. All other marks are owned by their respective companies.

49--04--01
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Copyright 2002 Honeywell Revised 1 Feb 2002
All Rights Reserved 1 May 1989
RELEASED FOR THE EXCLUSIVE USE BY: HONEYWELL EMPLOYEE AMERICAS

Please cut along the dotted line.

FOR HONEYWELL USE ONLY

REPORT OF POSSIBLE DATA ERROR CONTROL NO.

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PUBLICATION INFORMATION
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Number C15--2546--009 (Book, or
Number 49--04--01 From Title Page
Addendum)

Publication Auxiliary Power Unit Panel Document

Component Maintenance Manual
Title 4059028--901,--902 Type

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P.O. Box 21111
Phoenix, Arizona 85036-1111
U.S.A.

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PUBLICATION INFORMATION
Volume No.
Publication ATA Latest Issue Date
Number C15--2546--009 (Book, or
Number 49--04--01 From Title Page
Addendum)

Publication Auxiliary Power Unit Panel Document

Component Maintenance Manual
Title 4059028--901,--902 Type

READER INFORMATION
Please check all that apply:
h Trainer h Technician h Librarian h Engineer h Other (Please specify)
Your Name (optional) Company Name

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the use of staples). If sending by FAX, the Technical Publications’ U.S. FAX No. is (602- 436- 3900). If sending by email, the email address is
tpqa@honeywell.com.
Local reproduction of this form is encouraged.
RELEASED FOR THE EXCLUSIVE USE BY: HONEYWELL EMPLOYEE AMERICAS

DO NOT STAPLE

FOLD

NO POSTAGE
NECESSARY
IF MAILED
IN THE
UNITED STATES

BUSINESS REPLY MAIL

FIRST CLASS PERMIT NO. 3532, PHOENIX, AZ

POSTAGE WILL BE PAID BY ADDRESSEE

Honeywell
Aerospace Electronic Systems
CES--Phoenix
P.O. Box 21111
Phoenix, Arizona 85036-1111
U.S.A.

ATTN: Technical Publications

Quality Administrator

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RECORD OF REVISIONS
For each revision, put the revised pages in your manual and discard the superseded pages. Write
the revision number and date, date put in manual, and the incorporator’s initials in the applicable
columns on the Record of Revisions. The initial H shows Honeywell is the incorporator.

Revision Revision Date Put Revision Revision Date Put

Number Date In Manual By Number Date In Manual By
1 1 May 1990 17 Jul 1990 H

2 1 Aug 1991 30 Aug 1991 H

3 1 Mar 1992 20 Mar 1992 H

4 1 Feb 1997 1 Feb 1997 H

5 1 Feb 2002 1 Feb 2002 H

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COMPONENT MAINTENANCE MANUAL

Auxiliary Power Unit Panel / Part No. 4059028

RECORD OF TEMPORARY REVISIONS

Instructions on each page of a temporary revision tell you where to put the pages in your manual.
Remove temporary revision pages only when discard instructions are given. For each temporary
revision, put the applicable data in the record columns on this page.

Temporary Temporary Temporary Date

Revision Revision Revision Date Put Removed
Number Date Status in Manual By * from Manual By *
1 24 Nov 1992 Inactive 24 Nov 1992 H 1 Feb 1997 H

2 18 Nov 1997 Inactive 18 Nov 1997 H 1 Feb 2002 H

* The initial H in this column shows Honeywell has done this task.
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COMPONENT MAINTENANCE MANUAL

Auxiliary Power Unit Panel / Part No. 4059028

Auxiliary Power Unit Panel / Part No. 4059028

Subject Page
A. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10001
B. How to Find a Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10001
2. Contents of the IPL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10001
A. List of Suppliers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10001
B. Equipment Designator Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10001
C. Numerical Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10001
D. Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10002
3. List of Suppliers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10005
4. Equipment Designator Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10007
5. Numerical Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10009
6. Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10013
STORAGE (INCLUDING TRANSPORTATION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15001
1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15001
A. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15001
B. Equipment and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15001
2. Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15002
A. Storage Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15002
B. Packaging Procedure for the APUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15002

List of Illustrations
Figure Page
Figure Intro--1. Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INTRO--4
Figure 1. Auxiliary Power Unit Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Edgelight Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2001. APUP Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2005
Figure 6001. Switch and Lamp Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6007
Figure 6002. Edgelight Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6010
IPL Figure 1 (Sheet 1). Auxiliary Power Unit Control Panel . . . . . . . . . . . . . . . . . . . . . 10015
IPL Figure 1 (Sheet 2). Auxiliary Power Unit Control Panel . . . . . . . . . . . . . . . . . . . . . 10016
IPL Figure 2. Electrical Equipment Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10022
Figure 15001. Packing and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15003
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COMPONENT MAINTENANCE MANUAL

Auxiliary Power Unit Panel / Part No. 4059028

List of Tables
Table Page
Table Intro--1. Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INTRO--3
Table 1. APUP Leading Particulars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 2. APUP Control Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3. Switch Continuity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 4. Annunciator Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 1001. Integrated Test Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1003
Table 2001. Materials Used for Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2001
Table 2002. APUP Wire List No. 4060077--901, Revision E . . . . . . . . . . . . . . . . . . . . 2007
Table 4001. Equipment for Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4001
Table 4002. Materials for Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4001
Table 6001. Equipment for Special Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6001
Table 6002. Materials for Special Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6002
Table 7001. Materials for Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7001
Table 8001. Fits and Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8001
Table 9001. Equipment for Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9001
Table 9002. Materials for Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9003
Table 15001. Equipment for Storage and Transportation . . . . . . . . . . . . . . . . . . . . . . 15001
Table 15002. Materials for Storage and Transportation ....................... 15001
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COMPONENT MAINTENANCE MANUAL

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INTRODUCTION
1. Proprietary, Export, and Precautionary Data
A. Proprietary Notice

(1) This document and the information disclosed herein are proprietary data of
Honeywell. Neither this document nor the information contained herein shall be used,
reproduced, or disclosed to others without the written authorization of Honeywell,
except to the extent required for installation or maintenance of the recipient’s
equipment. FREEDOM OF INFORMATION ACT (5 USC 552) AND DISCLOSURE
OF CONFIDENTIAL INFORMATION GENERALLY (18 USC 1905).

(2) This document is being furnished in confidence by Honeywell. The information

disclosed herein falls within exemption (b) (4) of 5 USC 552 and the prohibitions of 18
USC 1905. Copyright 2002 Honeywell. All Rights Reserved.

(3) Honeywell is a U.S. registered trademark of Honeywell. All other marks are owned by
their respective companies.

B. Export Notice

(1) This document contains unrestricted technical data and is being exported under
license exception TSU/OTS in accordance with EAR Section 740.13(a).

(2) These commodities, technology, or software were exported from the United States in
accordance with the export administration regulations. Diversion contrary to U.S. law
is prohibited. ECCN: 7E994 Schedule B#4901.99.0050

C. Special Precautions

(1) Warnings, cautions, and notes in this manual give the data that follows:
· A WARNING is an operation or maintenance procedure or condition that, if not
obeyed, can cause injury or death.
· A CAUTION is an operation or maintenance procedure or condition that, if not
obeyed, can cause damage to the equipment.
· A NOTE gives data to make the work easier or gives directions to go to a
procedure.
(2) All personnel who operate equipment and do maintenance specified in this manual
must know and obey the safety precautions. The warnings and cautions that follow
apply to all parts of this manual.
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WARNING: BEFORE YOU USE A MATERIAL, REFER TO THE MANUFACTURERS’

MATERIAL SAFETY DATA SHEETS FOR SAFETY INFORMATION. SOME
MATERIALS CAN BE DANGEROUS.

CAUTION: DO NOT USE MATERIALS THAT ARE NOT EQUIVALENT TO

MATERIALS SPECIFIED BY HONEYWELL. MATERIALS THAT ARE NOT
EQUIVALENT CAN CAUSE DAMAGE TO THE EQUIPMENT AND CAN
VOID THE WARRANTY.

CAUTION: THE APUP CONTAINS ITEMS THAT ARE ELECTROSTATIC DISCHARGE

SENSITIVE (ESDS). IN THE IPL OF THIS MANUAL, THESE ITEMS ARE
IDENTIFIED AS ESDS. IF YOU DO NOT OBEY THE NECESSARY
CONTROLS, A FAILURE OR UNSATISFACTORY OPERATION OF THE
UNIT CAN OCCUR FROM ELECTROSTATIC DISCHARGE. USE
APPROVED INDUSTRY PRECAUTIONS TO KEEP THE RISK OF
DAMAGE TO A MINIMUM WHEN YOU TOUCH, REMOVE, OR INSERT
PARTS OR ASSEMBLIES.

2. Content Data
A. How to Use This Manual

(1) The instructions in this manual give the data necessary to do all recommended
maintenance functions to put the Auxiliary Power Unit Panel (APUP) in serviceable
condition. Standard maintenance procedures that technicians are thought to know
are not given in this manual.

(2) Refer to the table of contents to see which subheadings are included in this manual.
The table of contents identifies those subheadings that are not applicable or require
no special instructions.

(3) We recommend that the tests in TESTING AND FAULT ISOLATION be done before
the unit is disassembled. These tests can tell the condition of the APUP or most
probable cause of any malfunction. Should any malfunction occur, repair as
necessary.

(4) To decrease the length of sentences and titles, complete part numbers are not
always shown in this manual. A piece of the part number can show applicability to a
specific assembly or component on illustrations as well as in text and tables.
Complete part numbers are always given in the parts list subheading. Refer to the
introduction in the ILLUSTRATED PARTS LIST (IPL) to find how to use that
subheading.

(5) Related publications that are referred to in this manual are identified in Table Intro--1.
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COMPONENT MAINTENANCE MANUAL

Auxiliary Power Unit Panel / Part No. 4059028

Table Intro--1. Related Publications

Publication Publication No. ATA No.
Standard Repair Procedures for Honeywell A09--1100--004
Avionics Equipment Instruction Manual
Abbreviations for Use on Drawings and in Text* ASME Y1.1 (1989)
Graphic Symbols for Electrical and Electronics ANSI Y32.2 (1974)
Diagrams*
Standard Letter Symbols for Units of ANSI/IEEE Standard (Std) 260
Measurement* (1978)
Graphic Symbols for Logic Functions* ANSI/IEEE STD 91 (1984)
NOTES:
1. You can order a Honeywell publication from Honeywell as follows:
Telephone No.: (602) 436--6900
Fax No.: (602) 436--1588
E--mail: ces--publications--distribution@honeywell.com
2. *Available from the American National Standards Institute, New York, NY

B. Verification

(1) Verification of these technical instructions is done by performance or by simulation of

the necessary procedures. Checks of the manual by the engineering staff make sure
the instructions and description data agree with the applicable engineering
specifications and drawings and are accurate and sufficient. The level of verification
for this manual is shown in the list that follows.

Subheading Level of Verification

Testing and Fault Isolation By performance, 10 Jun 1997
Disassembly By simulation, 8 Jan 2002
Assembly By simulation, 8 Jan 2002

(2) Honeywell will revise this manual as necessary to give current data. The sources for
data supplied in this manual include engineering drawings and change orders
released as of 2 Oct 1997.
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C. Symbols

(1) The symbols in Figure Intro--1 may be used to identify static sensitive (ESDS) and
moisture sensitive devices.

ESDS Moisture Sensitive

Figure Intro--1. Symbols

D. Weights and Measurements

(1) All weights and measurements are in U.S. and S.I. (metric) values.

(2) The letter symbols for units of measurement are the same as shown in
ANSI/IEEE Std 260.

E. Acronyms and Abbreviations

(1) The acronyms and abbreviations that follow help the reader identify terms and
definitions used by Honeywell.

(2) The letter symbols for units of measurement are the same as shown in
ANSI/IEEE Std 260.

Term Definition
ANSI American National Standards Institute
APU Auxiliary Power Unit
APUP Auxiliary Power Unit Pane
ARINC Aeronautical Radio, Inc.
ASME American Society of Mechanical Engineers
ESDS electrostatic discharge sensitive
FAA Federal Aviation Administration
HMN Honeywell Material Number
IEEE Institute of Electrical and Electronics Engineers
IPL illustrated parts list
IT integrated test procedure
LRU line replaceable unit
MSC miscellaneous system controller
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Term Definition
No. number
OEM Original Equipment Manufacturer
PMA Parts Manufacturer Approval
S.I. International System of Units
Std standard
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DESCRIPTION AND OPERATION

1. Physical Description
A. General

(1) The Auxiliary Power Unit Panel (APUP) serves three purposes:
· allows the flight crew to manually discharge fire extinguishing agents into the
Auxiliary Power Unit (APU) compartment
· allows the flight crew to manually start and stop APU operation from the flight
compartment
· annunciates when fuel pressure is low, inlet/exhaust door position is incorrect, or
when the APU fails.

ID--39224

Figure 1. Auxiliary Power Unit Panel

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(2) The APUP (Figure 1) is a line replaceable unit (LRU) packaged in a custom--size
chassis. Mounting and cooling requirements for the APUP conform to Aeronautical
Radio, Inc. (ARINC) specification 601. Table 1 gives leading particulars for the APUP.
Major components include one backlit (edgelight) acrylic panel, two annunciated
pushbutton switches, one nonilluminated pushbutton switch, four annunciators, a
rotary switch with an annunciated handle, and a hardwired interconnect printed wiring
board. One connector plug (J1) is box mounted through the rear of the APUP.
Connector J1 contains 61, size 24 pin contacts.

(3) All pushbutton switches, annunciators, the edgelight panel, printed wiring board, and
rear connector are shop--replaceable assemblies. Removing the top and bottom
covers gives two--sided access to these assemblies. The access covers are held in
place with removable screws. The edgelight panel is held in place with captive
screws.

(4) Switches, annunciators, and the edgelight panel use replaceable incandescent lamps
for lightplate and annunciator lighting. Remove the button/lens cap on the switch or
annunciator to reach the lamp. Removal of the cap on the pushbutton switch also
gives access to a mounting screw in the switch body. For ease of maintenance, a
plastic lanyard allows the pushbutton cap to dangle from the switch body without
dropping to the floor. Relamping the edgelight panel requires disassembly of the
panel to access the lightplate (lamp circuit board). Procedures to do these tasks can
be found in the REPAIR section of this manual.

(5) The unit is panel mounted on Dzus rails with four, one--quarter turn captive fasteners.
Connector J1 mates with the aircraft wiring connector; this connector is the sole
electrical interface between the LRU and external aircraft system components.
Connector J1 is also mechanically keyed to prevent misconnection with the aircraft
wiring.
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Table 1. APUP Leading Particulars

Characteristic Specification
Dimensions (maximum):
· Width 5.75 in (146 mm)
· Height 3.38 in (86 mm)
· Depth (handle in stowed position) 7.27 in (180 mm)

Weight (approximate) 3.5 lb (1.59 kg)

Power Requirements (maximum):
· Edgelight Panel Variable from 0 to 5 V ac, 400 Hz, 8.3 W
· Annunciators +28  3 V dc, 12.4 W
· APU Fire +28  3 V dc, 3.1 W

Incandescent Lamps:
· Edgelight Panel 5 V, short T--1 bulb, unbased, conforming to
MS90451--6832
· Annunciators 28 V, T--1 bulb, submidget flange base, conforming to
MS90451--6839
Pushbutton Switches:
· Contact Rating make and break, continuous operation
· Action momentary or alternate
· No. of Poles 2 or 4 pole double--throw
· Actuation Force 1.5 to 5 lb

Fire Agent Discharge Switch:

· No. of rotary poles 2
· Rotary positions 3 indexed at 30_
· Torque to rotate handle 7  2 in--lb
· Force to engage spring 12  2 lb
· No. of linear poles 6, double--pole double--throw

· Actuation force 8  2 lb

Mating connector:
· J1 mates with MS3126F2461SY
Mounting Dzus fasteners conforming to MIL--F--25173
NOTE: The APUP has no active electronics.
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B. Unit Identification

(1) Unit identification is done with a black and silver label nameplate that shows the
nomenclature, hardware part number, serial number, weight and hardware
modification status of the unit. The nameplate is located on the side of the chassis.

(2) If the APUP has a Parts Manufacturer Approval (PMA) plate, the plate will be located
on the top access cover. The PMA plate identifies the unit as having Federal Aviation
Administration (FAA) approval and the type--certified airframe on which the unit is
eligible for installation when it left the factory. Therefore, the PMA may not reflect
current airframe certifications. Do not remove or add (in the field) the PMA plate
(nonprocurable item). FAA regulations require Honeywell to place the PMA on the
unit when it is sold as a spare part directly to an airline, but the PMA is not required to
ship the unit to an Original Equipment Manufacturer (OEM).

NOTE: The APUP may or may not have a PMA plate from the FAA.

C. Component Interconnections

(1) Interconnections between the switches, annunciators, and the rear connector are
provided by wire harnesses and a Printed Wiring Board (PWB) populated with
compliant wire--wrap terminals. Contact pins at connector J1 are wire--wrapped to the
terminals on the PWB. Board edge plugs provide the remaining board--to--board,
board--to--wire, and board--to--chassis interconnections. Wires from the switches are
sleeved to prevent any shorting where wires have to cross over or be spot--tied
together. The wires are bundled into separate wire harnesses and dressed away from
all sharp edges.

(2) Refer to the wiring list (Table 2002) in the SCHEMATIC AND WIRING DIAGRAMS
section of this manual for information on connector pin and solder terminal
assignments. Each entry in the wiring table represents an individual lead in the
harness. Each wire run is listed separately with its complete descriptive information
relative to its “TO” and “FROM” locations, type of lead termination at each location,
color of lead insulation, and type of wire.
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1 2

AGENT DISCH
ENG/APU
FIRE TEST
APU FIRE

1 PULL/TURN 2
APU
START/ APU
STOP GEN
FUEL FAIL
ON
OFF
OFF
DOOR

ID--39225
5 4 3
1 APU Fire Handle
2 ENG/APU Fire Test Pushbutton Switch
3 APU Generator Illuminated Pushbutton Switch
4 APU Status Display Annunciators
5 APU Start/Stop Illuminated Pushbutton Switch

NOTE: Annunciation nomenclature visible only when energized.

Figure 2. Edgelight Panel

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2. Functional Description
A. General

(1) The controls on the panel consist of two pushbutton switches, four annunciators, a
fire agent discharge switch with an annunciated handle, and a nonilluminated
pushbutton switch to initiate testing of the engine and Auxiliary Power Unit (APU) fire
detection system. The pushbutton switches are momentary action devices that
activate when pressed and return to initial position when released. The illuminated
APU FIRE assembly contains both linear and rotary switches. In general, each switch
opens or closes a circuit path on the wire between the switch contact and the rear
connector--pins.

(2) Annunciators indicate when fuel pressure is low, inlet/exhaust door position is
incorrect, or when the APU fails. The annunciators use discrete inputs from the
Miscellaneous System Controller (MSC) as lamp drive commands. Figure 2 shows
the edgelight panel and lists the various control functions. Refer to CMM 31--42--01
(Pub. No. 15--2546--08) for information on the MSC. This CMM also presents a
number of fundamental concepts and the theory on which operation of the APUP is
based.

(3) Refer to Table 2 for a brief summary of the control functions that can be initiated from
the APUP. Table 2 gives only a basic description of the following: legend and
background color for each annunciator, conditions under which the annunciator is
activated (illuminated), and a description of what the switch does.

NOTE: The information in Table 2 is not to be used for maintenance. Refer to the
official maintenance document for an exact description of the APUP control
functions. This information is intended for reference purposes only and may
change without notice.
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Table 2. APUP Control Functions

Switch/Lamp Legend Control Function and Operation
AGENT APU FIRE This switch controls two fire agent discharge cartridges. The APU FIRE
DISCH switch lamp lights black letters on red. When a fire is detected, the MSC flashes
APU FIRE on and off at 2 Hz. When the handle is pulled APU GEN is put
in emergency shutdown condition, the APU fire agent discharge cartridges
are armed, the APU GEN field is deenergized, and the APU fuel valve is
closed. After pulling out the handle, clockwise (cw) rotation discharges fire
agent--1 into the APU compartment and counter clockwise (ccw) rotation
discharges fire agent--2.
ENG/APU Push on this switch to do a test of the engine and APU fire detection
FIRE TEST systems.
switch
APU GEN OFF The OFF lamp lights amber letters on black when APU generator output
switch meets specified parameters. If the OFF lamp is on, operation may be
restored by pressing the switch to reset the APU generator control unit.
APU FUEL The FUEL lamp lights black letters on amber when fuel pressure is low.
FAIL The FAIL lamp lights black letters on amber when a start is not possible.
DOOR The DOOR lamp lights black letters on amber when APU inlet door is not in
the commanded position, or APU maintenance door switch is in the open
position.
------ This lamp (spare) lights an amber bar on black during lamp test.
START/STOP ON When pressed, this switch initiates the APU start sequence. The ON lamp
switch lights blue letters on black. During the start sequence, the MSC flashes the
ON lamp at 2 Hz until APU speed is above 95% N2 and 55% N1, then the
lamp goes steady. If the APU is started from this switch, it must be shut
down with this switch.
OFF Pressing this switch again initiates the APU shut down sequence. The OFF
lamp lights blue letters on black. When pressed, the OFF lamp remains on
until the APU inlet door is closed or 180 seconds have elapsed.
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3. Detailed Operation
A. Switches

(1) The switches provide continuity between the pins at the rear connectors as listed in
Table 3. Initial condition of each switch or function is given in the “Initial Switch
Position” column. Condition of the switch contacts when pressed (actuated) are listed
in the “Pressed Condition” column.

(2) The APU GEN switch opens a circuit when pressed. The APU START/STOP switch
completes circuit when pressed and opens the circuit when released. The FIRE
TEST switch controls the APU fire bell signal. The signal is present when the
pushbutton is released and open when the pushbutton is pressed. The AGENT
DISCH handle is a 6--DPDT linear pole and a 2--pole rotary switch. Pulling the handle
completes the circuit for agent 3 arm power. Pulling the handle and rotating in a cw
direction completes the agent 1 power circuits, and rotating in the ccw direction
completes the agent 2 power circuits. Pushing the handle in causes the fire handle
annunciator to ground and the reserve spare fire handle circuit to close.

B. Annunciator Power

(1) Annunciators are powered by 28 volts (maximum) applied to rear connector pin J1--A.
The lamps illuminate by grounding the appropriate pin of the rear connector. Each
annunciator contains two T--1 midget, flange--base lamps wired in parallel. The
annunciators can be illuminated individually from the external connector as shown by
Table 4.

C. Edgelight Panel

(1) In the edgelight panel there is a lamp circuit board and a coaxial plug connector.
Eight unbased bulbs are soldered onto the lamp circuit board. All eight bulbs are
connected in parallel. The coaxial plug mates with a receptacle connector which is
mounted flush to the front plate of the chassis. Location of the coaxial plug is marked
with a small white cross (+) painted on front of the edgelight panel. The connector is
wired to the rear connector--pin at J1--S and J1--T (ground) where the variable lamp
input voltage (0 to 5 V ac, 400 Hz) is applied. All lamps in the edgelight panel are
powered by this input.
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Table 3. Switch Continuity

Switch Nomenclature Initial Position Pressed Condition
APU GEN J1--Y to J1--e J1--Y to open
APU START/STOP J1--Y to open J1--Y to J1--v
ENG/APU FIRE TEST J1--Z to open J1--Z to J1--y
J1--PP to J1--BB J1--PP to open
AGENT DISCH J1--J to open J1--J to J1--L
J1--a to open J1--a to J1--LL
J1--B to open J1--B to J1--k
J1--t to J1--c J1--t to J1--f
J1--w to J1--H J1--w to J1--p
J1--E to open J1--E to J1--R
J1--G to open J1--G to J1--N

Table 4. Annunciator Illumination

To Illuminate Annunciator Ground Pin
APU GEN “OFF” J1--n
APU START/STOP “ON” J1--z
APU START/STOP “OFF” J1--q
“FUEL” J1--b
“DOOR” J1--u
“FAIL” J1--FF
“--” J1--HH
AGENT DISCH “APU FIRE” J1--i
NOTES:
1. Apply 28 V to pin J1--A.
2. APU FIRE annunciator has a separate annunciator power pin. To illuminate, apply 28 V to pin J1--C.
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TESTING AND FAULT ISOLATION

1. Overview
A. General

(1) The function of the test procedures is to find if there is a failure in the operation of the
APUP. If corrective steps are necessary, you must make sure the product is in
serviceable condition.

(2) Use the test procedures in this section to test and fault isolate the APUP.

B. Equipment and Materials

(1) Refer to the applicable test procedure for equipment.

WARNING: BEFORE YOU USE A MATERIAL, REFER TO THE MANUFACTURERS’

MATERIAL SAFETY DATA SHEETS FOR SAFETY INFORMATION. SOME
MATERIALS CAN BE DANGEROUS.

(2) Refer to the applicable test procedure for materials.

(3) Equivalent alternatives are permitted for equipment and materials.

2. Procedure
CAUTION: THE APUP CONTAINS ESDS ITEMS. USE PROTECTIVE PROCEDURES.

A. Test Setup

(1) Instructions for making the test setups and performing test procedures are supplied in
Table 1001, paragraphs 6 and 7.

B. Integrated Test Procedures

(1) Table 1001 is an integrated test procedure (IT). Use the test procedure to make an
analysis of the performance of the APUP. Table 1001 contains Honeywell
IT4059028--901, Revision H.

C. Fault Isolation

(1) The following assumptions are made when isolating faults.

(a) The test equipment is functioning properly.

(b) All previous tests have passed.

(c) Test failure is not a result of faulty wiring.

(2) Detailed fault isolation procedures are not provided in this manual. When a unit under
test fails a test step, use the information in the test description column of the test
procedures and the applicable schematics to isolate the malfunction to a particular
component or circuit.
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Table 1001. Integrated Test Specification

INTEGRATED TEST SPECIFICATION

AUXILIARY POWER PANEL, PART NO. 4059028--901

1. SCOPE

This Integrated Test Specification (IT) establishes the operational requirements that the Auxiliary
Power Panel, Part No. 4059028--901 and 4059028--902, must meet to ensure that it is in proper
operating condition. This IT also contains the detailed test procedures to test for these requirements.
The performance of these procedures requires the use of the test equipment specified in paragraph 5.

2. Deleted

3. GENERAL INFORMATION

3.1 All input signals shall be applied between the designated terminals and signal ground unless otherwise
stated. For all dc input signals, ”H” or ”high” shall mean +18.5 to +30.0 V dc above signal ground and
”L” or ”low” shall mean 0.0 to +3.5 V dc above signal ground. All output voltages shall be measured
with respect to signal ground unless otherwise stated.

3.2 When using Honeywell test fixture, Part No. 4074562 or T325861, circuit continuity is tested using the
test circuit depicted in figure 1.

The specified test fixture lamp will illuminate when the voltage across the designated connector pin
pair, V(T), is less than 0.2 V (0.15 to 0.25 V).

Operation of these circuits is verified as part of the test fixture calibration as follows:

a. Connection of a 7.5--ohm 0.1--percent resistor across applicable pins

shall illuminate the LED.
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Table 1001. Integrated Test Specification (cont)

CS--2546--446(R1)#

F NOTE: DS1 thru DS99 in the MFG LIMITS and the OPR LIMITS
columns in the test steps refer to the LEDs of this
continuity detection circuit in the Test Fixture. For
more information refer to HI drawing 4074562 or T325861.

Figure 1. Continuity Test Circuit

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Table 1001. Integrated Test Specification (cont)

b. Connection of a 15--ohm, 0.1--percent resistor across applicable pins

shall not illuminate the LED.

4. POWER AND SIGNAL REQUIREMENTS

4.1 Test Equipment Power Requirements

115  5 V, 60  6 Hz, single phase

4.2 Unit Under Test Power Requirements (Supplied by Test Fixture)

+28  3 V dc between pins J1--A and J1--C (+) to test fixture ground

0 to 5 V dc between J1--I (+) and J1--S

5. TEST EQUIPMENT

Equipment listed without a supplier/manufacturer are of Honeywell design.

5.1 Overhead Panel manual test fixture -- Part No. 4074562 or T325861

5.2 Interface cable -- Part No. 4074603 or T325861--54

5.3 Personality cable -- Part No. 4074606 or T325861--63

5.4 Lighting mockup standard -- Part No. 4071537

5.5 Lighting test fixture -- Part No. 4071547

5.6 Digital voltmeter (dvm) -- Hewlett--Packard Model 3440A with range unit 3445A, or equivalent

5.7 Regulated dc power supply -- Harrison Laboratories Model 6202A, or equivalent (variable from 0 to 30
V dc, 10 A) (2 required)

5.8 Regulated dc power supply -- Lamda LDS--W--01, or equivalent (variable from

0 to 7 V dc, 5 A) (2 required)

5.9 Megohmmeter -- Freed Transformer Co, Model No. 1620--R, or equivalent

5.10 Insulation resistance cable -- Part No. 4074610 or T325861--635

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Table 1001. Integrated Test Specification (cont)

6. TEST SETUP

6.1 Test Setup No. 1. (Perform prior to test 1.)

6.1.1 Set test fixture and cable control positions as follows:

Test Fixture 4074562 or T325861

6.1.1.1 Set POWER switch to OFF (SW106).

Insulation Resistance Cable

6.1.1.2 Set APUP toggle switch (SW4) to the up position.

6.1.1.3 Set all other toggle switches to the down position.

6.1.2 Connect interface and insulation resistance to the test fixture as shown in figure 2.

6.1.3 Connect UUT to interface cable as shown in figure 2.

6.1.4 Connect interface cable plug 1 and plug 2 to the megohmmeter HI and LO
jacks as shown in figure 2.

6.2 Test Setup No. 2. (Perform prior to test 2 and test 3).

6.2.1 Set test fixture and cable control positions as follows:

Test Fixture 4074562 or T325861

6.2.1.1 Set power switch to OFF (SW106).

6.2.1.2 Set all toggle switches to the down position (A1 thru F10, SW111, SW110).

6.2.1.3 Set dvm input select switch to 1 (SW107).

6.2.1.4 Set all thumbwheel switches to 0 (SW101).

6.2.1.5 Set 0--5 VDC VARY control fully ccw (SW109).

6.2.2 Connect interface and personality cables to the test fixture as shown in figure 3.
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Table 1001. Integrated Test Specification (cont)

CS--2546--447(R2)#

Figure 2. Test Setup 1 for Unit Under Test (UUT)

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Table 1001. Integrated Test Specification (cont)

CS--2546--448(R2)#

Figure 3. Test Setup 2

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Table 1001. Integrated Test Specification (cont)

6.2.3 Connect UUT to interface cable as shown in figure 3.

6.2.4 Connect power plug of test fixture to 115--V, 60--Hz receptacle.

6.2.5 Establish initial test conditions as follows:

6.2.5.1 Test Fixture 4074562 or T325861 Switch Settings

SW107 -- position 1

SW108 -- DECK 1

SW109 -- fully ccw

SW110 -- POS

SW111 -- A

A1 thru F10 -- down position

except

E5, E6, E7, E8, E9, E10 -- up position

SW106 (POWER) -- on

a. Energize dmm and set to indicate volts, 200 V range.

b. Connect jumper from DMM AUX COM to 28V AUX OUTPUT common.

6.2.5.2 Unit Under Test Switch Settings

All pushbutton switches -- released

AGENT DISCH -- in

6.3 Test Setup No. 3 (Perform prior to test 4.)

6.3.1 Set test fixture control positions as follows:

Test Fixture 4071547

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Table 1001. Integrated Test Specification (cont)

6.3.1.1 Set legend select switch (SW201) to OFF.

6.3.1.2 Set SW204 to LMU position.

6.3.2 Connect power supplies and digital voltmeter to test fixture as shown in figure 4.

6.3.3 Connect UUT to test fixture as shown in figure 4.

6.3.4 Connect the lighting standard to the test fixture as shown in figure 4,
using the lighting standard cable.

6.3.5 Position the UUT lighting standard so that the front surfaces of units
lie in the same vertical plane.

6.3.6 Set voltage controls to all four power supplies to 0 V.

6.3.7 Energize all four power supplies.

7. TEST REQUIREMENTS

Prior to and when performing detailed tests, observe these general test requirements.

7.1 Test Order. All tests shall normally be performed in the order specified.

7.1.1 Test 1, Insulation and Chassis Ground DC Resistance, is to be performed prior to Final Test
and may be performed separately from the main body of the test procedure.

7.1.2 Test 4, Lighting and Cosmetic Appearance, should be performed prior to Final ATP, if difficulties
with lighted components have occurred recently or are suspected.

7.2 Detailed Tests. The detailed tests are presented in a format that contains both procedure and
specification; this format is described in section 7.7.

7.3 Lighting Tests. When specified, a suitable darkened environment refers to an environment virtually
without ambient light source, and a dark--adapted observer refers to a person whose eyes have been
exposed to the darkened environment for a minimum of 15 minutes.

7.4 Retest. If rework is required due to failure, the IT must be performed again.
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Table 1001. Integrated Test Specification (cont)

CS--2546--449(R1)#

Figure 4. Test Setup 3

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Table 1001. Integrated Test Specification (cont)

7.5 All tests shall normally be performed under conditions of 25  10 _C, 90 percent relative humidity
maximum, and between 22 and 32 inches of mercury ambient pressure.

7.6 Unless otherwise specified, the unit under test (UUT) shall be viewed with the line of sight
perpendicular to the display face of the UUT from a distance of 28  2 inches at the particular point of
interest.

7.7 Test Format

Column Description
TEST NO. Tests are numbered in sequence. If any tests are added in future revisions,
these added tests may be numbered X.1, X.2, and X.3.
OPR LIMITS Unit under test (UUT) shall meet these limits whenever tested at other than the
manufacturing facility. When an item is marked OPTIONAL in this column, the
corresponding test is not required except as an aid in troubleshooting.
TEST These items are the parameters to which the unit under test was designed. In
DESCRIPTION addition, these items aid in troubleshooting by specifying the input and output
signal terminals. For brevity, all conditions required are not repeated for each
test. Conditions established in previous tests will also apply.
SWITCH POS Perform switch settings in order specified. When an item is entered in Work
Steps Column opposite a switch setting other than the first or when there is
additional space between switches, perform this item before setting any other
switches.
WORK STEPS When work step items are entered opposite first Switch Pos, perform all switch
settings first. When items are entered opposite switch setting other than first
setting or when there is additional space between switches, perform work step
item before setting any other switches.
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Table 1001. Integrated Test Specification (cont)

TEST SPECIFICATION PROCEDURE

NO. OPR LIMITS c TEST DESCRIPTION SWITCH POS c WORK STEPS

1 INSULATION AND INSULATION AND

CHASSIS CHASSIS
GROUND DC GROUND DC
RESISTANCE RESISTANCE

Insulation Resistance Insulation Resistance

1.1 21 megohms With all the pins of all rear Perform test setup No. 1
or greater connectors except for J1--D (paragraph 6.1). Using a
(optional) shorted together and 500 V megohmmeter, apply 500 V
dc applied between the dc between terminals 1 and
shorted pins and the unit 2 of the insulation
chassis for a minimum of resistance test cable for a
60 seconds, insulation minimum of 60 seconds.
resistance shall be as The insulation resistance
specified. shall be as specified.
Remove insulation
resistance cable.
Chassis Ground Chassis Ground
DC Resistance DC Resistance
1.2 100 milliohms The resistance between Connect an ohmmeter
or less J1--D and the chassis shall across J1--D and the
(optional) be as specified. chassis. The resistance
shall be as specified.
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Table 1001. Integrated Test Specification (cont)

TEST SPECIFICATION PROCEDURE

NO. OPR LIMITS c TEST DESCRIPTION SWITCH POS c WORK STEPS

2 CONTINUITY TEST CONTINUITY TEST

The AGENT DISCH switch Prior to application of
shall not bind when power, hold the APUP
operated in the normal vertically with the front
mounting position. down. Pull the AGENT
DISCH switch and rotate it
a minimum of 10 times in
each direction. Push the
switch in.
With all pushbutton Perform test setup No. 2
switches in their normal (paragraph 6.2).
(not pressed) condition and
the rotary switch in the Check that all pushbutton
AUTO position, the test switches are in their normal
fixture LED array shall be (not pressed) condition and
as specified. that the APU fire handle is
in initial (pushed in)
position.
APU GEN
2.1 DS3--on J1--Y to J1--e APU GEN
ENG/APU
FIRE TEST ENG/APU
2.2 DS2--on J1--PP to J1--BB FIRE TEST
AGENT DISCH
2.3 DS9--on J1--t to J1--c AGENT DISCH
DS11--on J1--w to J1--H
2.4 off Continuity shall not exist Observe all LEDs in the
between the following pairs: array except the ones
required to be on.
J1--Y to J1--v
J1--Z to J1--y
J1--J to J1--L
J1--a to J1--LL
J1--B to J1--k
J1--t to J1--f
J1--w to J1--p
J1--E to J1--R
J1--G to J1--N
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Table 1001. Integrated Test Specification (cont)

TEST SPECIFICATION PROCEDURE

NO. OPR LIMITS c TEST DESCRIPTION SWITCH POS c WORK STEPS

With the momentary Press and hold each

pushbutton pressed, the pushbutton switch and
test fixture LED array shall observe the LED array.
be as specified. When the Only the change specified
pushbutton is released, the shall occur. Then release
LED array shall be as the pushbutton and
specified and the observe the LED array.
pushbutton shall return to Only the change specified
its normal position. shall occur. Observe that
the pushbutton returns to
its normal position.
ENG/APU
FIRE TEST
2.5 DS1--on J1--Z to J1--y Press and hold the
DS2--off J1--PP to J1--BB ENG/APU FIRE TEST
pushbutton.

DS1--off J1--Z to J1--y Release the ENG/APU

DS2--on J1--PP to J1--BB FIRE TEST pushbutton.
button
returns
2.5.1 DS1--off DS1--on J1--Z to J1--y E5--down Observe only LED
J1--Z to J1--y E5--up indicated. Press and hold
ENG/APU FIRE TEST
pushbutton.
2.5.2 DS1--off Release ENG/APU fire test
pushbutton.
APU GEN
2.6 DS3--off J1--Y to J1--e Press and hold APU GEN
pushbutton.

DS3--on J1--Y to J1--e Release the APU GEN

button pushbutton.
returns
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Table 1001. Integrated Test Specification (cont)

TEST SPECIFICATION PROCEDURE

NO. OPR LIMITS c TEST DESCRIPTION SWITCH POS c WORK STEPS

START/STOP
2.7 DS4--on J1--Y to J1--v Press and hold the
START/STOP pushbutton.

DS4--off J1--Y to J1--v Release the START/STOP

button pushbutton.
returns
2.7.1 DS11--off AGENT DISCH J1--w to E8--down
DS11--on J1--H E8--up
When the rotary switch is in Turn the rotary switch in
the indicated position, the the direction indicated for
test fixture LED array shall the indicated number of
be as specified. positions. Observe the test
fixture LED array. Only the
change specified shall
occur.
2.8 DS5--on J1--J to J1--L Pull AGENT DISCH out
DS7--on J1--a to J1--LL one position and release.
DS8--on J1--B to J1--k (Position 1)
DS9--off J1--t to J1--f
DS10--on J1--w to J1--P
DS11--off
DS12--on
2.8.1 DS5--off DS5--on SWE5--down Observe only LEDs
SWE5--up indicated.
DS7--off DS7--on
SWE6--down
DS8--off DS8--on SWE6--up

DS12--off SWE7--down
DS12--on SWE7--up

SWE8--down
SWE8--up
2.9 DS13--on J1--E to J1--R Pull AGENT DISCH out
one more position, rotate
cw and hold.
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Table 1001. Integrated Test Specification (cont)

TEST SPECIFICATION PROCEDURE

NO. OPR LIMITS c TEST DESCRIPTION SWITCH POS c WORK STEPS

2.9.1 DS13--off SWE9--down Observe only LED

DS13--on SWE9--up indicated.
2.9.2 DS13--off J1--E to J1--R Release AGENT DISCH.
Returns to
position 1
2.10 DS14--on J1--G to J1--N Pull AGENT DISCH out
one more position, rotate
ccw and hold.
2.10 DS14--off SWE10--down Observe only LED
.1 DS14--on SWE10--up indicated.
DS14--off J1--G to J1--N Release AGENT DISCH.
Returns to
position 1
2.11 DS5--off J1--t to J1--c Push AGENT DISCH in
DS7--off J1--w to J1--H one position and release.
DS8--off
DS9--on
DS10--off
DS11--on
DS12--off
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Table 1001. Integrated Test Specification (cont)

TEST SPECIFICATION PROCEDURE

Lightplate Light-- Lightplate Light--

Leak Test Leak Test

4.3 No light leaks on With 5.0  0.03 V dc SW201-- Perform test setup No. 3
the painted areas applied from J1--T to J1--S, Lightplate (paragraph 6.3) in a
the UUT shall be (4.3). darkroom suitable for
SW202--UUT lighting testing.
SW203--5 V
Adjust the voltage control of
0--7 V power supply No. 2
so the dvm indicates 5.0 
0.03 V dc.

Verify the UUT light--plate.

4.4 Lightplate Color Lightplate Color
No apparent With 5.0  0.03 V dc Perform test setup No. 3
differences in applied from J1--T to J1--S (paragraph 6.3) in a
color and to the lighting mockup darkroom suitable for
standard, the UUT shall be lighting testing.
compared to the lighting SW201--
standard in a suitable Lightplate
darkened environment by a
dark--adapted observer and SW202--STD
shall be (4.4.1).
SW203--5 V
Adjust the voltage control of
0--7 V power supply No. 1
so the dvm indicates 5.0 
0.03 V dc.
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Table 1001. Integrated Test Specification (cont)

TEST SPECIFICATION PROCEDURE

NO. OPR LIMITS c TEST DESCRIPTION SWITCH POS c WORK STEPS

SW202--UUT Adjust the voltage control of

0--7 V power supply No. 2
so the dvm indicates 5.0 
0.03 V dc.
Compare the UUT
lightplate to the lighting
standard lightplate.
4.5 Annunciator/Switch Annunciator/Switch
Low Voltage Low Voltage
With the annunciator Perform test set No. 3
switches illuminated at the (paragraph 6.3) in a
specified voltage, the UUT darkroom suitable for
shall be as specified when lighting testing.
compared to the lighting
standard in a suitable
darkened environment by a
dark--adapted observer
4.5.1 Black on Amber Black on Amber
Annunciators/Switches Annunciators/Switches
This test is performed with SW201-- Adjust the voltage control of
14.0  0.03 V dc applied to BLK/AMB 0--30 V power supply No. 1
J1--A and J1--C, and SW202--STD so the dvm indicates 14.0
ground applied to the SW203--28V  0.03 V dc.
following pins:
J1--b, J1--u, J1--FF, J1--HH.
SW202--UUT Adjust the voltage control of
0--30 V power supply No. 2
so the dvm indicates 14.0
 0.03 V dc.
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NO. OPR LIMITS c TEST DESCRIPTION SWITCH POS c WORK STEPS

4.6.4 No apparent The brightness, color, and Compare the illuminated

.1 difference in contrast of the illuminated annunciators/switches on
bright--ness, anun--ciators/switches on the UUT with the
color, or contrast the UUT shall be compared illuminated
with the illuminated annun--ciators/switches on
annunciators/switches on the lighting standard.
the lighting standard and
shall be (4.6.4.1).
END OF TEST END OF TEST
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SCHEMATIC AND WIRING DIAGRAMS

1. Overview
A. General

(1) This section gives schematic and wiring diagrams for the APUP.

(2) Use these diagrams as an aid to fault isolate the APUP.

B. Materials

WARNING: BEFORE YOU USE A MATERIAL, REFER TO THE MANUFACTURERS’

MATERIAL SAFETY DATA SHEETS FOR SAFETY INFORMATION. SOME
MATERIALS CAN BE DANGEROUS.

(1) Refer to Table 2001 for materials specified in this section.

(2) Equivalent alternatives are permitted for equipment and materials.

Table 2001. Materials Used for Repair

Item Description Source
HMN 5700226 Wire, uninsulated, soft, copper, tin Optional source
coated, electrical hookup, AWG 26
[Federal Specification QQ--W--343,
Type H (Part No. QQW343HYYS1T)]
HMN 5704626--C Wire, high temperature, insulated, Carolina Wire and Cable Inc,
electrical, AWG 26 Charlotte, NC (no code)
(MIL--W--16878/4)
HMN 57P2924--C Wire, insulated, solderless--wrap W. L. Gore and Associates Inc,
HMN 57P2926--C (wire--wrap), electrical, with extruded Newark, DE (17217)
HMN 57P2928--C PTFE primary insulation covered with
fluorocarbon/kapton tape, AWG
24/26/28
NOTES:
1. Refer to the warranty CAUTION about materials in the INTRODUCTION.
2. The HMN codes in the list of materials identify the Honeywell Material Number (HMN) given to each material.
3. For the wire color as identified by (--C), refer to the wire list in this SCHEMATIC AND WIRING DIAGRAMS section.

C. Schematic and Wiring Diagrams

(1) The schematics for the APUP are given in Figure 2001.

(2) The wiring diagram for the APUP is given in Figure 2001.

(3) The interconnect for the APUP is given in Figure 2001.

(4) The wire list for the APUP is given in Table 2001.
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4. The basic color codes and abbreviations that are used for the conductors are as follows:
Code Color Abbreviation Code Color Abbreviation
1 Black BLK or BK 7 Blue BLU or B
2 Brown BRN or BR 8 Violet VIO or V
3 Red RED or R 9 Gray GRA or GY
4 Orange ORN or O 10 White WHT or W
5 Yellow YEL or Y 11 Clear
6 Green GRN or G
5. Details for wire colors are provided in the Standard Repair Procedures for Honeywell Avionics Equipment
Instruction Manual, Pub. No. A09--1100--004.
6. The MCode column shows the first five positions of a Honeywell Material Number (HMN) for wire and cable. The
sixth and seventh positions of the HMN identify the wire gage. The number after the dash (--) is the color. Use
the MCode to find the HMN identification.

Example: If the MCode is 57046, the AWG is 22, and the color is WHT--ORN, then the HMN is 5704622--15.

7. Some wiring restrictions or conditions exist and are follows:

Wrap Levels Available Component

1 (Level 1 only) J1, A99E1 thru A99E60

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DISASSEMBLY
1. Overview
A. General

(1) Use these procedures to remove parts from the APUP to do the cleaning, checks,
repair, and replacement of parts as necessary. References to figure and item
numbers in the ILLUSTRATED PARTS LIST (IPL) show where to find the parts to
remove. The applicable figure number in the IPL is given in each primary paragraph
and does not change until specified differently.

(2) Before disassembly, use TESTING AND FAULT ISOLATION to examine the condition
of the APUP or to find the most probable cause of malfunctions. Do this to prevent
disassembly that is not necessary. Do only those procedures of disassembly that are
necessary to remove defective parts and to correct malfunctions.

(3) As an aid for assembly, tag the items that are disconnected to show where the
connections were made. Include data on any special conditions of a connection, such
as the polarity and the position of the items. Identify the tie points for the
motherboard wire assembly to prevent damage to the wire insulation during final
assembly.

B. Equipment and Materials

(1) No equipment is necessary.

(2) No materials are necessary.

2. Procedure
CAUTION: THE APUP CONTAINS ESDS ITEMS. USE PROTECTIVE PROCEDURES.

A. Removal of the Access Covers

(1) Remove four screws (35, IPL figure 1) and top cover (40).

(2) Remove four screws (26, IPL figure 2) and bottom cover (27).

B. Removal of the Edgelight Panel

CAUTION: DO NOT USE ANY TOOLS TO PRY EDGELIGHT PANEL. DAMAGE TO

THE EDGELIGHT PANEL OR ELECTRICAL CONNECTOR MAY RESULT.

(1) Loosen fully four captive screws on front of edgelight panel (30, IPL figure 1). Turn
screws counterclockwise (ccw) until the screws move freely in the panel.

(2) Disengage edgelight panel from electrical connector by gently pulling edgelight panel
forward with a rocking motion. The location of the electrical connector is marked with
a small white cross (+) on the front of the edgelight panel.
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C. Removal of the Pushbutton Switches

(1) Remove switches (90, 95, IPL figure 1) from chassis only as necessary to do repairs.

(2) Always remove edgelight panel prior to removing switches.

(a) Locate wire harness connectors P3 and P5 (93D, 98D) of switch to be removed.

(b) Unplug connectors P3 and P5 (93D, 98D) from printed wiring board (70, IPL
figure 2). Carefully pull on pull tabs provided on the connectors, not on the wire
bundle. Do not use pliers.

NOTE: Button caps are connected to the switch body with a plastic lanyard. Do
not tug on or remove lanyard.

(d) Note alignment of button cap and position of plastic lanyard in switch body to aid
in assembly.

(e) Turn small mounting screw (located inside the switch body) ccw until mounting
cam disengages from mounting sleeve.

(f) Remove metal mounting sleeve from switch. Slide the mounting sleeve
backward off the switch body and over wire bundle.

(g) Pull switch forward through mounting hole in face of chassis.

D. Removal of the APU FIRE Switch

(1) Locate wiring harness connector A1P1 of APU FIRE switch (85, IPL figure 1).

NOTE: Connector A1P1 is a screw--together connector.

(2) Loosen two screws securing connector halves. Turn connector screws ccw to
unplug.

(3) Support switch and remove four phillips screws (80) from front panel.

(4) Remove switch by rotating handle until it passes through opening in front chassis
panel.

E. Removal of the FIRE TEST Pushbutton Switch

(1) Remove knob (25, IPL figure 1) from FIRE TEST pushbutton switch (100). Use your
fingers to pull the knob off the switch shaft. Do not use pliers.

(2) Locate wiring harness connector P2 (101D) of FIRE TEST pushbutton switch (100).

(3) Unplug connector from printed wiring board (70, IPL figure 2). Carefully pull on tabs
provided at connector not on wire bundle.
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(4) Remove nut and washer (P/O 100, IPL figure 1) threaded on switch.

(5) Remove switch (100) from rear of panel.

F. Removal of the Annunciators

(1) Locate annunciator wiring harness connector P4 (77H).

(2) Unplug connector P4 (77H) from printed wiring board (70, IPL figure 2). Carefully pull
on tabs provided on connector. Do not pull on wire bundle.

(3) Support annunciators and remove two screws (65, IPL figure 1) from chassis front
panel.

(4) Remove annunciators (75) from rear of panel.

(5) Remove three screws (55) and separate annunciators from strap (60) and mounting
block (70).

G. Removal of the Edgelight Panel Connector

(1) Locate wire harness of edgelight panel connector (15, IPL figure 2) on printed wiring
board (70).

(2) Unplug connector (15) from printed wiring board (70). Carefully pull on tabs provided
on connector. Do not pull on wire harness.

(3) Remove nut (10) and washer (P/O 15) from rear of edgelight panel connector (15).

(4) Remove edgelight panel connector (15) from front of panel.

NOTE: The APUP is now separated into major subassemblies. Normal

maintenance procedures should not require further disassembly. Should
removal of interconnect PWB or rear connector (J1) be required, they must
be removed as a unit as indicated in step H.

H. Removal of the Rear Connector J1 and Printed Wiring Board

CAUTION: WHEN REMOVING PWB A99 (70), ALL SUBASSEMBLIES MUST BE

ADEQUATELY SUPPORTED TO PREVENT MOVEMENT BETWEEN
THESE ASSEMBLIES AND PWB A99 (70) TO PREVENT DAMAGE TO
WIRING INTERCONNECTIONS. MINIMIZE BENDING OR FLEXING
WIRING HARNESS DURING REMOVAL PROCESS.

(1) Remove four screws (75, IPL figure 2) and four washers (80) from rear of chassis.

(2) Remove four screws (35) and four spacers (40) securing printed wiring board (70).

(3) Remove connector (85) and printed wiring board (70) as a unit.
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CLEANING
1. Overview

A. General

(1) Use these procedures to remove dust, dirt, and unwanted oil and grease. Be careful
not to cause damage to the parts when you do these procedures.

(2) Do the procedures in a clean location. When you use pressurized air to clean
assemblies and parts, do not use more air pressure than is necessary.

(3) After you clean the assemblies and parts, supply protection from moisture, dust, and
other contamination until you do a visual check and assemble the component.

B. Equipment and Materials

(1) Refer to Table 4001 for equipment.

WARNING: BEFORE YOU USE A MATERIAL, REFER TO THE MANUFACTURERS’

MATERIAL SAFETY DATA SHEETS FOR SAFETY INFORMATION. SOME
MATERIALS CAN BE DANGEROUS.

(2) Refer to Table 4002 for materials.

(3) Equivalent alternatives are permitted for equipment and materials.

Table 4001. Equipment for Cleaning

Item Description Source
Air ionizing nozzle or gun that Optional source
attaches to a hose for pressurized
air (20 psi)

Table 4002. Materials for Cleaning

Item Description Source
Crocus cloth, Grade 4/0 Optional source
Cloth, soft, lint--free Optional source
HMN 1130778 Solvent — Isopropyl alcohol Optional source
(99%), semigrade or isopropanol
NOTES:
1. Refer to the warranty CAUTION about materials in the INTRODUCTION.
2. The HMN codes in the list of materials identify the Honeywell Material Number (HMN) given to each material.
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2. Procedure
CAUTION: THE APUP CONTAINS ESDS ITEMS. USE PROTECTIVE PROCEDURES.

CAUTION: IF YOU CLEAN ESDS PARTS WITH PRESSURIZED AIR, MAKE SURE THE
HOSE HAS AN AIR IONIZING NOZZLE OR GUN. AN ELECTROSTATIC
CHARGE CAN CAUSE DAMAGE TO THE PARTS IF THE NOZZLE OR GUN
ATTACHMENT IS NOT USED.

CAUTION: BEFORE YOU USE ISOPROPYL ALCOHOL AS A SOLVENT, MAKE SURE IT

DOES NOT CAUSE DAMAGE TO THE PAINTED SURFACES. APPLY A
MINIMUM QUANTITY OF THE SOLVENT; TOO MUCH SOLVENT CAN CAUSE
DAMAGE TO THE PARTS THAT ARE SENSITIVE TO MOISTURE.

CAUTION: USE ISOPROPYL ALCOHOL CAREFULLY WHEN YOU CLEAN FLUX FROM
THE SOLDER CONNECTIONS. DO NOT LET THE SOLVENT TOUCH THE
CONNECTOR BODY.

A. External Parts

(1) Remove dirt and dust with pressurized air or a soft, natural--bristle brush.

(2) Remove oil and grease that has collected on the APUP. Use a clean cloth or cotton
swab that is moist with isopropyl alcohol.

(3) Remove unwanted material on painted surfaces that show index markings, numerals,
or letters. Use a clean cloth that is moist with a mild detergent. To clean an area in a
recess, use a stiff--bristle brush that is moist with a mild detergent.

B. Electrical Parts

CAUTION: THERMOPLASTIC TYPE CONNECTORS ARE SUSCEPTIBLE TO

DAMAGE BY CLEANING SOLVENTS. ISOPROPYL ALCOHOL MAY BE
USED WITH EXTREME CAUTION TO CLEAN FLUX RESIDUES FROM
SOLDER CONNECTIONS. DO NOT ALLOW SOLVENT FLUID TO
CONTACT CONNECTOR BODY. DO NOT, UNDER ANY
CIRCUMSTANCES, USE FREON, ACRYLIC, TOLUENE, OR ETHYLENE
TYPE SOLVENTS.

CAUTION: DAMAGE TO THE WIRING MAY RESULT FROM THE USE OF SHARP
OBJECTS (STICK--PINS, HOOKS, NEEDLE--NOSE PLIERS, ETC.) ON
THE WIRE--WRAP SIDE OF THE PRINTED WIRING BOARD.

CAUTION: TO PREVENT DAMAGE TO ELECTRONIC COMPONENTS, DO NOT USE

ANY TYPE OF ULTRASONIC CLEANING DEVICE.

(1) Remove dirt and dust around the connector pins with pressurized air.

(2) Remove dirt and dust on the electrical parts with a soft, natural--bristle brush or
cotton swab that is moist with isopropyl alcohol.
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C. Metallic Mechanical Parts

CAUTION: WHEN YOU REMOVE CORROSION, MOVE THE CROCUS CLOTH

PARALLEL TO THE AXIS OF THE PART. IF YOU MOVE THE CROCUS
CLOTH ACROSS THE AXIS, YOU CAN CAUSE DAMAGE TO THE FINISH.

(1) Remove corrosion from the metal parts with a 4/0 crocus cloth.

(2) Clean the metal parts in a bath of isopropyl alcohol. If submersion can cause damage
to the part, wipe the part fully with a cloth that is moist with isopropyl alcohol.

(3) Dry the part with pressurized air.

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CHECK
1. Overview
A. General

(1) Use these procedures to find damaged or worn parts and parts that show signs of
near failure. Do these checks during testing and fault isolation, disassembly, and
assembly.

(2) Replace all damaged or worn parts. This prevents future failures of the equipment.

B. Equipment and Materials

(1) No equipment is necessary.

(2) No materials are necessary.

2. Procedure
A. Precautions

CAUTION: THE APUP CONTAINS ESDS ITEMS. USE PROTECTIVE PROCEDURES.

CAUTION: DO NOT TOUCH THE CONNECTOR OR COMPONENT PINS UNLESS

PROPERLY GROUNDED. THE ESDS COMPONENT COULD BE DAMAGED
OR ESTABLISHED PERFORMANCE LEVELS COULD BE DEGRADED.

B. Visual Checks

(1) Examine all surfaces (covers included) for twisted, bent, or dented areas. The pieces
must fit together correctly. Installation of the cover must not compress the wires or
cause a blockage in the movement of a part.

(2) Examine the exterior and interior of the APUP. The APUP must be clean and have no
dirt, loose particles, solder splashes, and other unwanted materials. Painted surfaces
should not look worn or have bad scratches.

(3) Examine the solder connections. Make sure the solder is applied correctly and that
the connections are correctly attached. Make sure solder joints are tight and free of
scratches, roughness, sharp edges, dullness, bridging, or blistering. Solder joints
must show signs of wetting (molten solder adhering and flowing on a metallic surface
to a smooth, even coating) and bonding where the solder blends to the soldered
surface to form a small contact angle.

(4) Examine electrical components. Items that have cracks, have changed in color, and
show signs they became too hot can be defective. Replace them or do electrical
checks to make sure of their condition.

(5) Examine electrical insulation. The insulation must be flexible, not rigid or broken, and
have no surfaces that are burned. Make sure the wires do not touch sharp edges and
surfaces that could cause damage to the insulation.
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(6) Examine connector pins. The pins must not be bent or damaged. Make sure the
connectors are tightly engaged.

(7) Examine installed parts. Make sure that all parts are installed correctly and the
attaching hardware is in position and is tight. Make sure the orientation and polarity is
correct.

(8) Examine metal parts. Make sure there is no corrosion, rust, or other structural
damage.

(9) Examine the threaded parts. There must be no cross--threads and burrs.

(10) Examine the identification plate. Make sure the identification plate is tightly attached
and you can read it.

(11) Check the switches and annunciators for cracks and changes in color.
Switches/annunciators that have cracks, have changed in color, and show signs they
became too hot can be defective. Replace them or do electrical checks to make sure
of their condition.

(12) Check the edgelight panel for light leakage. There must be no leakage of light.
Make sure the panel is easy to read, not too dim or too bright.
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REPAIR
1. Overview
A. General

(1) Use these procedures for the APUP to replace defective parts and replace or repair
defective subassemblies. Repair of the APUP consists primarily of replacing defective
annunciator lamps or wiring as disclosed by performing procedures described in
CHECK and TESTING AND FAULT ISOLATION. When new parts are required, refer
to the ILLUSTRATED PARTS LIST for correct part numbers, quantities, and attaching
hardware. Paint touchup, parts repair, and replacement of pushbutton and
annunciator lamps are provided in paragraph 2.

(2) Do only those procedures of disassembly that are necessary to make repairs. When
new parts are necessary, refer to the ILLUSTRATED PARTS LIST (IPL) for the
correct part numbers, quantities, and hardware that is attached. Refer to Table 2001
for rack wiring termination and wiring identification.

B. Equipment and Materials

(1) Refer to Table 6001 for equipment.

WARNING: BEFORE YOU USE A MATERIAL, REFER TO THE MANUFACTURERS’

MATERIAL SAFETY DATA SHEETS FOR SAFETY INFORMATION. SOME
MATERIALS CAN BE DANGEROUS.

(2) Refer to Table 6002 for materials.

(3) Equivalent alternatives are permitted for equipment and materials.

Table 6001. Equipment for Special Repair

Item Description Source
Contact extraction tool (note 1) Part No. 600--0116--000 Teradyne Connection Systems,
Nashua, NH
Contact insertion tool (note 1) Part No. 600--0132--000 Teradyne Connection Systems,
Nashua, NH
Pin insertion and extraction tool Part No. ITT Cannon Industries, ITT
(note 1) C1ET--20(279--7001--000) Cannon Military/Aerospace Div,
Santa Ana, CA
Removal tool (note 1) Part No. 66571--2D AMP Inc, TYCO Electronics,
Middletown, PA
Crimp tool (note 1) Part No. 90340--1 AMP Inc, TYCO Electronics,
Middletown, PA
Crimp tool (note 1) Part No. 90418--1 AMP Inc, TYCO Electronics,
Middletown, PA
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Table 6001. Equipment for Special Repair (cont)

Item Description Source
Extraction and reset tool (note 1) Part No. 843996--3 AMP Inc, TYCO Electronics,
Middletown, PA
Edgelight connector Part No. 800--0000208--1 Bell Industries Redmond, WA
Edgelight connector insulating Part No. 100--550008--1 Bell Industries Redmond, WA
washer
Synthetic rubber ring Part No. 100--310004--2 Bell Industries Redmond, WA
Lamp, 5 volt Short T--1, unbased, conforming Optional source
to MS90451--6832
Lamp, 28 volt T--1 bulb with colorless Optional source
transparent glass, submidget
flange base, conforming to
S90451--6839
NOTES:
1. The equipment is required when not using Test Fixture T325861.

Table 6002. Materials for Special Repair

Item Description Source
Cleaning swabs Lint--free cleaning swabs Optional source
Sandpaper size 180 and 360 Optional source
Brush Brush, natural--bristle, soft, Optional source
MIL--S--43871
Semigloss red enamel (FED--STD--595 color 11105) Optional source
HMN 111C678 Defluxer/cleaner semiaqueous, Petroferm Inc, Fernandina Beach,
terpene — BIOACT EC--7R FL
HMN 1130778 Solvent — Isopropyl alcohol Optional source
(99%), semigrade or isopropanol
HMN 2010814 Tape, NATURAL, lacing and tying, Sunset Line and Twine Co,
0.050--inch wide and 0.010--inch Petaluma, CA
thick (MIL--T--43435, Type II --
polyester yarn, finish C --
impregnated with synthetic
rubberized polyester, size 5)
HMN 2914532 Tubing, flexible TFE (AMS 3645), Chemplast Inc Div of Norton Co,
NATURAL color, (size 24) Acton, MA
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Table 6002. Materials for Special Repair (cont)

Item Description Source
HMN 2932532 Sleeving, nonrigid, insulation, Minnesota Mining and Mfg Co,
crosslinked, flexible, polyolefin, Electrical Handling and Protection
heat shrinkable, electrical, CLR Div, Austin, TX (20999)
(flammable), 0.093--inch inside
diameter (MIL--I--23053/5,
Class 2)
HMN 5700226 Wire, uninsulated, soft, copper, tin Optional source
coated, electrical hookup, AWG
26 [Federal Specification
QQ--W--343, Type H (Part No.
QQW343HYYS1T)]
HMN 5704626--C Wire, high temperature, insulated, Carolina Wire and Cable Inc,
electrical, AWG 26 Charlotte, NC
(MIL--W--16878/4)
HMN 57P2924--C Wire, insulated, solderless--wrap W. L. Gore and Associates Inc,
HMN 57P2926--C (wire--wrap), electrical, with Newark, DE
HMN 57P2928--C extruded PTFE primary insulation
covered with fluorocarbon/kapton
tape, AWG 24/26/28
HMN 9451078 Coating, aliphatic polyurethane, DeSoto Inc, Des Plaines, IL
lusterless GRA (MIL--C--83286,
Type I, components I and II, and
FED--STD--595 color 36118)
HMN 9824678 Insulating compound, Cytec Industries Inc, Olean, NY
polyurethane resin., electrical
(MIL--I--46058, Type UR) —
Conathane CE 1155A/1155B
NOTES:
1. Refer to the warranty CAUTION about materials in the INTRODUCTION.
2. The HMN codes in the list of materials identify the Honeywell Material Number (HMN) given to each material.
3. For the wire color as identified by (--C), refer to the wire list in Table 2002 of the SCHEMATIC AND WIRING
DIAGRAMS section.

2. Procedure

CAUTION: THE APUP CONTAINS ESDS ITEMS. USE PROTECTIVE PROCEDURES.

A. References for Repair

(1) This paragraph shows where to find repair information located in other sections of
this manual and in other manuals. The information in other sections of this manual is
necessary for repair of the APUP and its major subassemblies. The information
located in other manuals give procedures not covered in this manual.
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(a) Refer to SCHEMATICS AND WIRING DIAGRAMS for reference drawings for the
APUP and its major subassemblies. The drawings give information about:
· Bus wire data
· Conformal coating
· Component layout
· Component termination
· Cut runs
· Schematics.
(b) Refer to SCHEMATICS AND WIRING DIAGRAMS for wire list tables and for
harness, cable, and lead assemblies. The tables give information about wire:
· Terminations
· Type (HMN number)
· Size (AWG)
· Color.
(c) Refer to FITS AND CLEARANCES for:
· Component clearance
· Maximum component height
· Maximum lead length
· Torque limits.
(d) Refer to the ILLUSTRATED PARTS LIST (IPL) for:
· Figure and item numbers
· Subassembly and component locations
· Correct part numbers
· Correct quantities
· Attaching hardware.
(e) Refer to the Standard Repair Procedures for Honeywell Avionics Equipment
Instruction Manual, Honeywell Pub. No. A09--1100--004, to do shop repairs.
Shop repairs that are done in the same way on many types of assemblies are
defined as standard repair procedures. Supplement the standard repair
procedures with approved local shop practices.

B. Touch Up Painted Surfaces

(1) Lightly sand off any loose paint prior to repainting.

(2) Clean painted surfaces in accordance with CLEANING.

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(3) Touch up edgelight panel background with lusterless gray enamel (HMN 9451078).
Use a soft--bristle brush.
(4) Dry at room temperature for 24 hours.
(5) Touchup of legend marking is not recommended.

(6) Touch up APU FIRE handle with semigloss red enamel (FED--STD--595, color 11105)
and dry as in step (4).
C. Special Repair of Damaged Parts

(1) Straighten any bent pins in rear chassis connector J1. Replace connector pins using
pin insertion/extraction tool, ITT Cannon Part No. C1ET--20 (279--7001--000). If
connector insulation is damaged or cracked, replace connector.
(2) Replace bent or broken contacts in A1P1 connector. Use removal tool, AMP Inc Part
No. 66571--2D, and contact crimp tool, AMP Inc Part No. 90340--1, to replace A1P1
connector contacts. If connector is damaged or cracked, replace connector.
(3) Replace bent or broken contacts in connector plugs P2 thru P6 (switch wire harness
connectors). Use extraction and reset tool, AMP Inc Part No. 843996--3, and crimp
tool, AMP Inc Part No. 90418--1, to replace contacts. If connector insulation is
damaged or cracked, replace connector.
(4) Repair of A99 printed wiring board contacts requires use of the Teradyne Part No.
600--0116--000 for extraction and Part No. 600--0132--000 for pin insertion.
(5) Repair wiring in accordance with standard established shop practices.
NOTE: Refer to Table 2001 for wiring terminations, pin numbers, and exact wire
type. Use of flexible tubing (HMN 2914532), nonrigid shrink tubing (HMN
2932532), and lacing tape (HMN 2010814) is as required.
NOTE: Use 24, 26, and 28 AWG wire (HMN 57P2924, 57P2926, 57P2928,
5704626, and 5700226) for repair of switch wiring. Sleeve wire as
necessary using flexible tubing (HMN 2914532) or shrink tubing (HMN
2932532).
D. Replace Pushbutton Lamps
NOTE: Pushbutton caps are connected to the switch body with plastic lanyard.
Note position of lanyard to aid in reinserting the cap in switch body.

(1) Carefully pull pushbutton cap from switch body, using an alternating rocking motion
from top to bottom until pushbutton clicks loose from switch body. Do not use pliers.
CAUTION: DO NOT USE A SCREWDRIVER TO PRY THE LAMP FROM REAR
OF PUSHBUTTON CAP. USING A SCREWDRIVER TO REMOVE THE
LAMP CAN DAMAGE THE CAP.
(2) Manually remove lamps from rear of pushbutton. Refer to Figure 6001 for location(s)
of lamp(s) in the button cap.
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WARNING: CHECK PUSHBUTTON CAP FOR REINSERTION HAZARD

WARNING. IF PRESENT, TURN POWER OFF BEFORE
REINSERTING PUSHBUTTON CAP. INADVERTENT SYSTEMS
ACTUATION DURING RELAMPING CAN BE EXTREMELY
HAZARDOUS.
(3) Install new lamps, align lanyard, and insert pushbutton cap into switch body.
(4) Make sure the pushbutton is not pressed in (not activated).
E. Replace Annunciator Lamps
(1) Carefully pull on cap of annunciator. Do not use pliers. Cap is mounted on a metal
slide and when pulled forward pivots down for access to lamps as shown in
Figure 6001.
(2) Manually remove lamps from rear of cap.
(3) Install new lamps, pivot cap up, and insert in annunciator body. A minimum amount
of pressure applied to cap will lock it in place.
F. Special Repair of the Edgelight Panel
(1) The only repair recommended for the edgelight panel is the replacement of defective
miniature lamps, replacement of power connector (coaxial plug) on the lamp circuit
board, and paint touchup of the panel. Any other damage should be corrected by
replacement of the edgelight panel, Bell Part No. 800--0000208--1.
(a) Remove edgelight panel according to DISASSEMBLY section.
(b) Locate defective lamp(s).
1 Connect a 5--volt ac power supply between center connector pin and shell
on power connector (coaxial plug).
2 Turn power supply on.
3 Observe front panel for lighting uniformity. A lower intensity area indicates a
failed lamp. Note areas of low intensity light.
4 Turn off power supply and disconnect power supply leads.
(c) Gain access to lamp circuit board as follows:
CAUTION: PROTECT PANEL DURING REPAIR TO PREVENT DAMAGE TO
PAINTED SURFACES.
CAUTION: USE EXTREME CAUTION WHEN SEPARATING LAMP CIRCUIT
BOARD FROM EDGELIGHT PANEL TO PREVENT DAMAGE TO
CIRCUIT BOARD.
1 Place edgelight panel face down on protective work surface. Refer to
Figure 6002 and remove five small screws securing lamp circuit board to
panel.
2 Separate circuit board from edgelight panel. Use nonmetallic instrument to
carefully pry circuit board from edgelight panel.
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LAMP
CHASSIS

LAMP

TAB

HAZARD
WARNING
SLEEVE

LAMP

CAP

CAM
ID--39226

SWITCH
BODY
LANYARD
Figure 6001. Switch and Lamp Replacement
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CAUTION: DO NOT REMOVE BLACK LIGHT SEALANT MATERIAL ON

LAMP CIRCUIT BOARD OR EDGELIGHT PANEL.

(d) Replace defective lamps (see Figure 6002).

1 Remove and save synthetic rubber ring, Bell Part No. 100--310004--2, that
serves as a light seal around lamp.

2 Remove conformal coating, if necessary, from surface of board surrounding

defective lamp. Apply noncorrosive cleaning solvent (HMN 111C678) with
soft, natural--bristle brush until conformal coating is removed.

CAUTION: TO PREVENT CIRCUIT BOARD DAMAGE, AVOID PROLONGED

CONTACT OF SOLDERING IRON WITH CONDUCTOR STRIPS
OR PADS.

3 Note position of lamp and its leads. Desolder defective lamp from circuit
board.

4 Clean area of circuit board where lamp was removed. Use isopropyl alcohol
(HMN 1130778) and cotton swab or soft--bristle brush. DO NOT remove any
of black light--sealant material applied to other areas on circuit board.

5 Install a new lamp in same position noted in step 3 and solder to circuit
board.

NOTE: Make sure there are no solder bridges between the HI and LO
traces on the circuit board.

6 Clean solder connections using isopropyl alcohol (HMN 1130778) and cotton
swab or soft--bristle brush.

WARNING: APPLY CONFORMAL COATING IN A WELL--VENTILATED

AREA. AVOID PROLONGED OR REPEATED CONTACT WITH
SKIN.

7 Apply conformal coating (HMN 9824678) to area around base of new

lamp with soft--bristle brush; avoid covering lamp with coating. Allow
coating to air--dry for 10 to 15 minutes, then cure coating for 1/2 hour
at 68 _C (155 _F). Protect coating from airborne lint and dust during cure.

8 Install (replace if damaged) synthetic rubber ring removed in step 1.

9 Repeat step (b) to verify that the new lamp operates properly.

10 Install lamp circuit board in panel and secure in place with screws removed
in step (c).

(e) Replace power connector (coaxial plug) (see Figure 6002).

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CAUTION: PROTECT PANEL DURING REPAIR TO PREVENT DAMAGE TO

THE PAINTED SURFACES.
CAUTION: USE EXTREME CAUTION WHEN SEPARATING THE CIRCUIT
BOARD FROM THE EDGELIGHT PANEL TO PREVENT DAMAGE
TO BOARD.
1 Gain access to lamp circuit board in accordance with step (c).
2 Remove insulating washer from power connector (coaxial plug).
3 If necessary, remove conformal coating from surface of board surrounding
connector. Apply noncorrosive cleaning solvent (HMN 111C678) with soft,
natural--bristle brush until conformal coating is removed.
CAUTION: TO PREVENT CIRCUIT BOARD DAMAGE, AVOID PROLONGED
CONTACT OF SOLDERING IRON WITH CONDUCTOR STRIPS
OR PADS.
4 Note position of connector and its leads. Using a vacuum desoldering
apparatus to prevent damage to circuit board, remove solder from contact
area to release the connector.
5 Clean area of board where the connector was removed. Use isopropyl
alcohol (HMN 1130778) and cotton swab or soft--bristle brush.
6 Install new connector in position noted in step 4 and solder to circuit board.
Make sure there are no solder bridges between the HI and LO traces on the
circuit board.
7 Make sure circuit board fits into edgelight panel. Flange of connector must
be 0.005 inch above to 0.010 inch below the panel surface. If necessary,
remove excess solder from connector solder points.
8 Clean solder connections using isopropyl alcohol (HMN 1130778) and a
cotton swab or soft--bristle brush.
WARNING: APPLY CONFORMAL COATING IN A WELL--VENTILATED
AREA. AVOID PROLONGED OR REPEATED CONTACT WITH
SKIN.
CAUTION: DO NOT CONTAMINATE CONNECTOR CONTACTS, AVOID
COVERING CONNECTOR WITH CONFORMAL COATING.
9 Apply conformal coating (HMN 9824678) to area around base of new
connector with soft--bristle brush. Allow coating to air--dry for 10 to 15
minutes, then cure coating for 1/2 hour at 68 _C (155 _F). Protect coating
from airborne lint and dust during cure.
10 Install circuit board in edgelight panel and secure in place with screws
removed in step (a).
11 Bond insulating washer, Bell Part No. 100--550008--1, to surface of
connector flange (washer is self--adhesive).
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G. Replace Fire Handle Lamps

(1) The only repair recommended for the switch is the replacement of defective
miniature lamps. Any other damage should be corrected by replacement of the
switch. See Figure 6002.

(2) Two small snap--on tabs in the body of the handle hold the lens cap in place.

(a) Squeeze the ends of the handle to push in the small (black) snap--on tabs
and carefully pull lens cap from handle.

(b) Manually remove lamps from rear of lens cap.

PANEL

CIRCUIT
BOARD

SCREW

RUBBER
RING CONNECTOR
LAMP INSULATING
WASHER

Figure 6002. Edgelight Panel Assembly

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ASSEMBLY
1. Overview
A. General

(1) Use these procedures to assemble the APUP. Do only those procedures that are
applicable to the level of disassembly done. Refer to the data written during
disassembly for the location of tie points and where to connect the components and
wires.

(2) References to figure and item numbers in the ILLUSTRATED PARTS LIST (IPL)
show you the location of the parts as they are assembled. The applicable figure
number in the IPL is given in each primary paragraph and does not change until
specified differently.

B. Equipment and Materials

(1) No equipment is necessary.

WARNING: BEFORE YOU USE A MATERIAL, REFER TO THE MANUFACTURERS’

MATERIAL SAFETY DATA SHEETS FOR SAFETY INFORMATION. SOME
MATERIALS CAN BE DANGEROUS.

(2) Refer to Table 7001 for materials.

(3) Equivalent alternatives are permitted for equipment and materials.

Table 7001. Materials for Assembly

Item Description Source
HMN 9730178 Retaining compound Loctite Corp, Rocky Hill, CT
(MIL--S--22473, grade A)
NOTES:
1. Refer to the warranty CAUTION about materials in the INTRODUCTION.
2. The HMN codes in the list of materials identify the Honeywell Material Number (HMN) given to each material.

2. Procedure
CAUTION: THE APUP CONTAINS ESDS ITEMS. USE PROTECTIVE PROCEDURES.

A. Installation of the Printed Wiring Board and J1 Connector as a Unit

(1) Install printed wiring board (70, IPL figure 2) into chassis (90) and align with mounting
holes.

(2) Insert J1 connector (85) through the rear panel of chassis (90) and support when
installing four screws (75) and four washers (80) and secure connector.
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(3) Insert four screws (35) and four spacers (40), and secure printed wiring board (70).
NOTE: The J1 connector cover (20, IPL figure 1) is installed at this time.
B. Installation of the Edgelight Panel Connector
(1) Insert connector (15, IPL figure 2) through front of chassis (90) and secure with nut
(10) and washer (P/O 15).
deleted step (2)
NOTE: If a new connector is being installed, discard nut supplied with the connector
and get a new nut (10).
C. Installation of the Annunciator
(1) Install annunciator (75, IPL figure 1) onto mounting block (70) and secure with strap
(60) and three screws (55).
(2) Position mounting block (70) on rear of chassis front panel.
(3) Apply retaining compound (HMN 9730178) on two screws (65) and secure mounting
block (70).
(4) Plug connector P4 (77H) into mating connector J4 (65, IPL figure 2) on printed wiring
board (70). Push in straight and square until seated.
D. Installation of the FIRE TEST Pushbutton Switch
(1) Insert the FIRE TEST pushbutton switch (100, IPL figure 1) through rear of front
panel and support switch.
(2) Install washer and nut (P/O 100) supplied with switch and tighten. Discard keying
washer supplied with switch.
(3) Plug connector P2 (101D) into mating connector J2 (55, IPL figure 2) on printed
wiring board (70). Push in straight and square until seated.
E. Installation of the APU FIRE Switch
(1) Rotate the APU FIRE Switch (85, IPL figure 1) body enough to pass switch handle
through elongated opening in chassis front panel.
(2) Apply retaining compound (HMN 9730178) to four mounting screws (80) and secure
to chassis (105).
(3) If applicable, press connector A1P1 into mating connector J1 (50, IPL figure 2) on
printed wiring board (70), and tighten two screws on the connector.
F. Installation of the Pushbutton Switches
(1) Remove button cap for access to a mounting screw and cam located inside the
switch body. See Figure 6001.
NOTE: Pushbutton caps are connected to the switch body with plastic lanyard.
Note position of lanyard to aid in reinserting cap.
NOTE: The TOP of the switch is marked as an aid in assembly and to show which
side faces upward. Use the marking to correctly orient switch during
assembly.
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Auxiliary Power Unit Panel / Part No. 4059028

(2) Insert switch body, switch wiring, and connector through front of chassis face panel.
Position switch flush to chassis.

CAUTION: DO NOT OVERTIGHTEN MOUNTING SLEEVE; SWITCH BODY AND/OR

MOUNTING CAM CAN BE DAMAGED.

(3) From rear of switches (90, 95, IPL figure 1), slide metal mounting sleeve over switch
body. Hold metal mounting sleeve in place on switch and turn screw and mounting
cam cw until firmly in place.

(4) Align lanyard on button cap and switch body and insert button. Apply firm pressure
until button cap snaps into place.

(5) Make sure switch is in initial (not pressed) position.

(6) Plug connectors P3 and P5 (93D, 98D) into mating connectors J3 and J5 (55, IPL
figure 2) on printed wiring board (70, IPL figure 2). Push in straight and square
until seated.

NOTE: Plugging in the pushbutton switch connectors P3 and P5 (93D, 98D, IPL
figure 1) requires matching switch connector numbers to those on the
printed wiring board (70, IPL figure 2).

G. Installation of the Edgelight Panel

(1) Position edgelight panel (30, IPL figure 1) to front of chassis.

(2) Align connectors and carefully mate edgelight panel to chassis.

NOTE: White cross (+) on face of edgelight panel marks location of connector.

(3) Secure with four captive phillips screws on edgelight panel.

(4) Install knob (25) on stem of pushbutton switch (100).

H. Installation of the Access Covers

(1) Apply retaining compound (HMN 9730178) to four screws (35, IPL figure 1) and
secure top cover (40).

(2) Apply retaining compound (HMN 9730178) to four screws (26, IPL figure 2) and
secure bottom cover (27).
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FITS AND CLEARANCES

1. Overview
A. General

(1) The fits and clearances in Table 8001 are necessary to assemble the APUP correctly.
Make sure these limits occur when repair procedures are done.

Table 8001. Fits and Clearances

Figure -- Item Condition to Measure Limits
Edgelight Panel Connector Connector flange surface to panel Connector flange surface 0.005
Figure 6002 surface. inch above to 0.010 inch below
panel surface.
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IPL Figure 1IPL Figure 2 IPL Table 1IPL Table 2

1. Overview
A. Introduction

(1) The Illustrated Parts List (IPL) gives the parts that are used to make the APUP. It also
supplies the necessary data to get replacement parts for repair and fault isolation.

(2) The list of parts is given in general disassembly sequence. The illustrations show
where you can find each part and are an important aid in disassembly and assembly
procedures.

B. How to Find a Part

(1) If the Part Number is known, refer to the Numerical Index to find the figure and item
numbers in the Parts List.

(2) If the equipment designator is known, refer to the Equipment Designator Index to find
the figure and item numbers in the Parts List.

(3) After you get the figure and item number, refer to the Parts List for more identification
data.

2. Contents of the IPL

A. List of Suppliers

(1) The names and addresses of companies that supply the items included in the Parts
List are shown in the List of Suppliers. Refer to List of Suppliers, paragraph 3.

(2) The supplier CAGE code is given in the Nomenclature column of the Parts List to
identify the supplier.

B. Equipment Designator Index

(1) The Equipment Designator Index is an alphanumeric list of the equipment

designators given to the subassemblies and electrical/electronic parts. The
designators are an aid to identify parts on the schematics and wiring diagrams. Refer
to Equipment Designator Index, paragraph 4.

(2) Each entry in the Equipment Designator Index identifies the figure and item numbers
where the part is found in the Parts List. A hyphen between two designators shows a
continuous sequence of designators (example: A1–A5 is the same as A1 thru A5).

C. Numerical Index

(1) The Numerical Index is an alphanumeric list of all the Part Numbers shown in the
Part Number column of the Parts List. Refer to Numerical Index, paragraph 5.
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(2) Also included in the index are the Honeywell Part Numbers that are equivalent to the
manufacturer Part Number. Optional manufacturer Part Numbers are not included in
the index.

(3) The Fig. Item column gives all of the locations of a part. If a Part Number is in more
than one Fig. Item location, the Part Number is shown only one time in the Part
Number column.

(4) The Total Req column shows the total number of parts that are used at each Fig.
Item location.

(5) The Airline Stock No. column has space for customers to use.

D. Parts List

(1) An item number is given to each part in the Parts List and on the related figure. The
item numbers show the general disassembly sequence. Refer to Parts List,
paragraph 6.

(2) Some of the parts are not shown on a figure, such as a fully assembled item, an
unprogrammed microcircuit, and a selection of resistors. Items that are not illustrated
have a dash before the item number in the Parts List.

(3) An item number with a letter suffix (A thru Z except I and O) shows any one of these
conditions has occurred:
· A modification (by a service bulletin)
· A change in configuration from the initial item
· A change to a better part (no service bulletin)
· Accommodation was made for a disassembly sequence.
(4) The Part Number column shows the Part Number given by the primary source of the
part, either Honeywell or a commercial supplier, or the Part Number of a U.S.
standard part. When this column shows the Part Number of a commercial supplier or
a U.S. standard part, the Nomenclature column may show the Honeywell Part
Number. When this column shows the Honeywell Part Number for ordinary
commercial hardware, the Nomenclature column gives a description of the part.
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(5) The Airline Stock No. column has space for customers to use.
· Shows optional manufacturer Part Numbers (OPT MFG PN) with their supplier
code when there is more than one supplier of a part. At the first location of a part
with more than one source of supply, the applicable OPT MFG PN data is shown.
Any subsequent locations of the same part refer to the first location for the OPT
MFG PN.
· Identifies parts that are electrostatic discharge sensitive with the identification
(ESDS). Refer to the special precautions in the INTRODUCTION of this manual.
· Identifies parts that can have dangerous effects with the warning *HAZARDOUS
MATERIAL*. Refer to the special precautions in the INTRODUCTION of this
manual.
· Identifies parts for selection with the words “SEL FR PN .... MADE BY ....” These
parts are commercially supplied, but Honeywell examines them and selects those
that have the necessary quality. Parts for replacement must come from Honeywell.
· Identifies parts that are airworthiness critical with the identification
(AIRWORTHINESS CRITICAL ITEM). Refer to the special precautions in the
INTRODUCTION of this manual.
· Identifies parts that are moisture sensitive with the identification *MOISTURE
SENSITIVE*. Refer to the special precautions in the INTRODUCTION of this
manual.
· Identifies parts that can be used when the recommended part is not available.
· The Nomenclature column of the Parts List shows a supplier code with the letter V
before it. This code (from Cataloging Handbook H4/H8, Commercial and
Government Entity (CAGE), Sections A and B) identifies where to get the specified
item.
· No supplier code is shown in the Nomenclature column of the Parts List if one of
these conditions is applicable:
-- The item is a U.S. standard part
-- Honeywell is the supplier.
(6) The Eff Code column identifies differences in specific configurations of the top
assembly in each figure:
· If this column is empty, the part is used in all configurations of the top assembly for
that figure.
· If this column has a letter code in it, the part is only used in the configuration of the
top assembly that has the same letter code.
· If this column has more than one letter code, the part is used in each top
assembly with any of the same letter codes.
(7) The Units Per Assy column shows the quantity of each part that is used in the next
higher assembly. The letters AR are an indication that the quantity changes as
necessary. The letters RF identify a reference item.
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Auxiliary Power Unit Panel / Part No. 4059028

IPL Figure 1 (Sheet 1). Auxiliary Power Unit Control Panel

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1. Overview
A. General

(1) Use these instructions to prepare the APUP for storage or transportation.

(2) Make sure the APUP has protection from dust, moisture, and other contamination.

(3) Whenever possible, repackage the unit using the original packaging material.

(4) When more than one item is being shipped, place a quantity of packaged items
within a close-fitting box.

B. Equipment and Materials

(1) Refer to Table 15001 for equipment.

(2) Refer to Table 15002 for materials.

(3) Equivalent alternatives are permitted for equipment and materials.

Table 15001. Equipment for Storage and Transportation

Item Description Source
Strapping tool Strapping Dispenser Optional source

Table 15002. Materials for Storage and Transportation

Item Description Source
Container ATA Category II, size 014, (10 by Optional source
10 by 10 inches), tuck top carton,
constructed from 300--pound test
extra strength Humid Pak W, C
Flute corrugated fiberboard.
Dunnage Convoluted polyether Optional source
polyurethane foam with a density
of 1.3 pounds per cubic foot, in
the following dimensions and
quantities:
· Dunnage 1 -- 10 by 10 by 7--1/2
inches
· Dunnage 2 -- 8 by 8 by 4 inches
Foam adhesive Scotch Grip 4500 Minnesota Mining and Mfg Co,
Industrial Tape and Specialties
Div, St. Paul, MN
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Table 15002. Materials for Storage and Transportation (cont)

Item Description Source
Static shielding bag Optional source
Plastic or steel strapping (0.375 Optional source
inch wide) with required strapping
tool
NOTES:
1. Refer to the warranty CAUTION about materials in the INTRODUCTION.
2. The HMN codes in the list of materials identify the Honeywell Material Number (HMN) given to each material.

2. Procedure
CAUTION: THE APUP CONTAINS ESDS ITEMS. USE PROTECTIVE PROCEDURES.

A. Storage Procedure

(1) If the APUP must be in storage for a long time, keep it in a location with a
temperature range of --22 to +131 _F (--30 to +55 C_).

B. Packaging Procedure for the APUP

(1) Figure 15001 illustrates the following packing and storage instructions.

(a) Place APUP in static shielding bag. Fold over mouth of bag. Do not seal.

(b) Insert dunnage 1, cavity side up, in bottom of container. Place APUP in cavity.

(c) Secure dunnage 2 in container on the top flap with adhesive.

(d) Fold in flap with dunnage to close container.

(e) Mark carton to identify component and to indicate date of packing.

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UNIT STATIC SHIELDING BAG

DUNNAGE 1

DUNNAGE 2

UNIT

SECTION--AA
ID--39228

Figure 15001. Packing and Storage

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