INJECTION PUMP SPECIFICATION ©

FULL LOAD RPM: 1500 / 1800 CUSTOMER PART #: 504105273 MODEL NO.: DB4429-5945
GOV. REGULATION: 3-5 % CUSTOMER'S NAME: SUPERSEDES:
ENGINE: NEF 4 TAA 2V IVECO ENGINE COMPANY EDITION NO.: 14
APPLICATION: GENERATOR 98 / 110 KW (TIER 2) DATED: 10/01/2014
NOTE: THIS SPECIFICATION DEVELOPED WITH STANADYNE LOW DEAD VOLUME CALIBRATION INJECTORS.
ALL SPEEDS ARE IN ENGINE RPM UNLESS OTHERWISE NOTED.
USE LATEST REVISION FOR ALL REFERENCED DOCUMENTS.

TEST STAND: ISO 4008: PUMP SETTINGS: FOLLOWING PUMP SERVICE (CON’T):
1. CALIBRATING HIGH PRESSURE PIPES...SAE J1418/ISO 4093: 8. 1500 RPM (ADJ.): ADJUST THROTTLE FOR 54.5-55.5 m³/STROKE.
.063" (1.6 mm) I.D. X 25" (635 mm) LONG. SET LIGHT LOAD ADJUSTING SCREW FOR 5.25.
2. CALIBRATING INJECTORS...STANADYNE P/N 37392 9. 1625 RPM (WOT): ADJUST HIGH IDLE SCREW TO OBTAIN
(LOW DEAD VOLUME). 10-22 MAX. mm³/STROKE.
0.6 mm ORIFICE PLATE NOP…3000 PSI (207 BAR) OPENING 10. CHECK POINTS:
PRESSURE.
3. CALIBRATION FLUID...SAE J967/ISO 4113 (REF. S.B. 201): THROTTLE T.P
a. TEMPERATURE AT INLET 110-115F (43-46C) RPM POSITION mm³/STROKE ADVANCE PRESSURE
b. SUPPLY PRESSURE (S.B. 334): 4.5-5.5 PSI. a. 150 WOT 54 MIN. 0.5 MAX. 10 MIN.
(31-38 kPa) AT PUMP INLET. b. 1500 WOT 149-150 0-0.3 77-78
4. ELECTRONIC ADVANCE INDICATOR: 39938
c. 1500 ADJ. 115-119 0.5MAX. ---
PUMP INSTALLATION: IT-140 d. 1500 ADJ. 54.5-55.5 4.75-5.75 ---
ROTATION-CCW-* LEVER ANGLES (REF.) e. 1500 WOT * 5 MAX. --- ---
NAME PLATE-R-SIDE** HIGH IDLE (C) 2° f. 1500 ADJ. ** 48-52 89 ---
#1 CYL. -2-O'CLOCK** g. 500 WOT ** --- 89 ---
THROTTLE-R-SIDE** h. *** WOT 25 MAX. --- ---
ESO (12V E.T.R.) i. *** WOT 5 MAX. 8°-9° ---

* VIEWED FROM DRIVE END ** VIEWED FROM TRANSFER PUMP END * E.S.O. DE-ENERGIZED
** COLD START SOLENOID ENERIGIZED
PUMP OPERATING SPEED...HALF...ENGINE SPEED *** SEE STEP 14 REGARDING ERPM NAMEPLATE STAMPING.
MECHANICALLY TIMED TO CAM (PER S.B. 177)
11. TURN L.I. SCREW IN UNTIL THE SCREW JUST CONTACTS THE
PUMP CALIBRATION CHECKS: AS RECEIVED FOR SERVICE THROTTLE BOSS WITH THE THROTTLE IN THE WOT POSITION.
(REF. SL-222)(REF. S.B. 97R FOR SPEED DROOP) LOCK L.I. SCREW NUT.
1. 1000 RPM (WOT): OPERATE PUMP FOR 10 MINUTES TO BRING TO 12. SPECIAL NOTES:
OPERATING TEMPERATURE AND CLEAR AIR FROM SYSTEM. a. TORQUE ALL FASTENERS PER S.B. 106
2. TURN SPEED DROOP ADJUSTING CAP ASSEMBLY COUNTER- b. LOCK DRIVE SHAFT PER S.B. 460
CLOCKWISE UNTIL IT STOPS, THEN TURN IT 3 TURNS CLOCKWISE. c. ASSEMBLE DRIVE COMPONENTS PER S.B. 438.
3. 1625 RPM (WOT): RESET HIGH IDLE SCREW IF NECESSARY TO d. SEAL FASTENERS PER S.B. 134R.
OBTAIN 10-22 MAX. mm³/STROKE. e. DO NOT REMOVE TIMING LOCK PLATE – REF. S.B. 553.
4. CHECK POINTS: (SEQUENCE MUST BE FOLLOWED AS LISTED) 13. PUMP MAY BE CONVERTED TO 24V E.T.R. WITH PART NUMBER
26387 SOLENOID FRAME ASSY. AND PART NUMBER 37075 COLD
THROTTLE ADVANCE SOLENOID COIL WITHOUT CHANGE IN PUMP MODEL
RPM POSITION mm³/STROKE ADVANCE NUMBER. THE GOVERNOR COVER AND PUMP NAMEPLATE MUST
a. 150 WOT 52 MIN. 0.5 MAX. BE STAMPED 24V.
b. 1500 WOT 147.5-151.5 0-0.3 14. FOR SERVICE USE ONLY:
c. 1500 ADJ. 115-119 0.5°MAX OEM TO STAMP RPM ON NAMEPLATE.
d. 1500 ADJ. 53-57 4.25°-6.25° IF NAMEPLATE IS STAMPED 1500 ERPM:
e. 1500 WOT * 5 MAX. ---
f. 1500 ADJ. ** 48-52 8-9 a. ADJUST SPEED DROOP TO MINIMUM DROOP POSITION
g. 500 WOT ** --- 8-9 (CCW-DIRECTION).
h. 1625 WOT 25 MAX. --- TURN SPEED DROOP CAP CLOCKWISE 3 FULL TURNS.
I. 1675 WOT 5 MAX. 8°-9° b. SET HIGH IDLE AT 1625 ERPM FOR 10 – 22 mm³/STROKE.
c. CHECK FUEL CUT-OFF AT 1675 ERPM (WOT) FOR
* E.S.O. DE-ENERGIZED 5 mm³/STROKE MAX.
** COLD START SOLENOID ENERIGIZED
5. RESET FINAL HIGH IDLE SETTING. SEE STEP 14. IF NAMEPLATE IS STAMPED 1800 ERPM:
a. ADJUST SPEED DROOP TO MINIMUM DROOP POSITION
PUMP SETTINGS: FOLLOWING PUMP SERVICE (CCW-DIRECTION).
1. ROLLER-TO-ROLLER DIMENSION: 1.986" ± .0015" TURN SPEED DROOP CAP CLOCKWISE 6 FULL TURNS.
(50.44 mm ± 0.04 mm) b. SET HIGH IDLE AT 1925 ERPM FOR 10 – 22 mm³/STROKE.
MAXIMUM ECCENTRICITY: .004" (0.10 mm) T.I.R. c. CHECK FUEL CUT-OFF AT 1975 ERPM (WOT) FOR
5 mm³/STROKE MAX.
2. SPEED DROOP SETTINGS:
a. ASSEMBLE SPEED DROOP PER S.B. 97R. ENSURE CONTROL AIR TIME PUMP USING STANADYNE AIR TIMING FIXTURE 42973
SPRING INSTALLED WITH 5 -½ +1 TURNS ON CONTROL ROD WITH HUB ADAPTER 29711. INSTALL TOOL TO DRIVE SHAFT AND
SPRING GUIDE. TIGHTEN LOCKING NUT TO 50-60 lbf-inches (5.7-6.8 NM). CONNECT
b. ADJUST SPEED DROOP TO MINIMUM DROOP POSITION (CCW- AIR SUPPLY WITH 60-100 PSI (4.1-6.9 BAR) TO #1 CYLINDER
DIRECTION). TURN SPEED DROOP CAP CLOCKWISE 3 FULL OUTLET. SLOWLY ROTATE TOOL IN DIRECTION OF ROTATION
TURNS. UNTIL ROLLERS STRIKE CAM RING AND TOOL STOPS. LOOSEN THE
c. BACK-OUT HIGH IDLE SCREW. TIMING FIXTURE THUMBSCREW AND ROTATE THE FIXTURE’S
3. GOVERNOR LINKAGE GAP: .125" TO .145" (3.2-3.7 mm) OUTER PORTION UNTIL POINTER IS CENTERED OVER ONE OF THE
(USE KIT #23093 S.B. 95). PUMP HOUSING FLANGE “EARS”. USING THE POINTER AS A GUIDE,
4. 1000 RPM (WOT): OPERATE PUMP FOR 10 MINUTES TO BRING PLACE A THIN REFERENCE LINE ON THE FLANGE WITH A LEAD
TO OPERATING TEMPERATURE AND CLEAR AIR FROM SYSTEM. PENCIL. NEXT, LOOSEN THE FIXTURE’S THUMBSCREW AND
5. 400 RPM (WOT): ROTATE OUTER PORTION IN THE OPPOSITE DIRECTION OF
a. CHECK E.S.O. 4 mm³/STROKE MAX. ROTATION A TOTAL OF 4°. TIGHTEN THUMBSCREW TO LOCK THE
b. CHECK FOR MINIMUM TRANSFER PUMP LIFT OF 18" HG. INNER AND OUTER PORTIONS OF THE FIXTURE TOGETHER. WITH
(60 kPa) COMPRESSED AIR OFF, ROTATE AIR TIMING FIXTURE AND PUMP
6. 1500 RPM (WOT): DRIVE SHAFT IN DIRECTION OF ROTATION UNTIL TIMING POINTER
a. SET TRANSFER PUMP PRESSURE FOR 77-78 PSI. IS REALIGNED WITH PREVIOUS REFERENCE LINE. TIGHTEN DRIVE
(531-538 kPa)(SUPPLY SET PER TEST STAND NOTE 3B). SHAFT LOCKING SCREW TO 105-110 lbf-inches (11.9-12.4 NM). IF
b. ADJUST RETURN OIL TO 400-750 CC/MIN. RECHECK TRANSFER INTERFERENCE BETWEEN STRAIGHT EDGE AND HOUSING
PUMP PRESSURE. OCCURS, PLACE WASHER
c. CHECK HOUSING PRESSURE FOR 5.5-10.0 PSI, (38-69 kPa). (i.e. 13521) BETWEEN STRAIGHT EDGE AND TOOL.
7. 1500 RPM (WOT): SET ROLLER-TO-ROLLER FUEL DELIVERY:
149-150mm³/STROKE.

© STANADYNE Corporation, all rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any
form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
 DB4429-5945 EDITION 14 DATED 10/01/2014 Page 2 of 4

Note:

Note: IF VALVE BODY / COIL ASSEMBLY ARE NOT AS PICTURED USE 34195 VALVE BODY & 39518 COIL ASSEMBLY. REFERENCE S.B. 373A.
LEAD WIRES EXIT TO THE RIGHT VIEWED FROM TRANSFER PUMP END.

Note:
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Note:

Note: * O.S. METERING VALVE AND ARM ASSEMBLY 35865 REFERENCE S.B. 336

Note:
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Note:

Note: INSTALL GROUNDING STRAP ON RIGHT SIDE VIEWING TRANSFER PUMP REFERENCE S.B. 108

FOR SERVICE USE ONLY

APPLICABLE SERVICE ASSEMBLIES FOR ENGINEERING USE ONLY
Assembly Description DATE ECN NO EDITION
17776 THROTTLE SHAFT BUSHING REPLACEMENT 05/11/2005 29322 1
26431 ESO MOUNTING AND GROUNDING KIT 06/10/2005 29418 2
33702 GASKET KIT 12/21/2005 29805 3
06/16/2006 30117 4
02/09/2007 30582 5
06/23/2008 31235 6
10/20/2008 31400 7
03/13/2009 31973 8
09/09/2010 32828 9
03/07/2011 33178 10
11/04/2011 33623 11
11/14/2013 36311 12
01/31/2014 36596 13
10/01/2014 37305 14