April 30, 1962
62-45
TO: CESSNA SALES AND SERVICE ORGANIZATION
SUBJECT: NAV-O-MATIC OPERATIONAL AND SERVICING INFORMATION
MODELS AFFECTED: MODELS 172 - 175 - 180 - 182 - 185 - 210
The following information which pertains to operating and servicing the Cessna
Nav-O-Matic is being enclosed for your service use.
1) NEW NAV-O-MATIC OPERATING INSTRUCTIONS
This pamphlet is a supplement to the single engine Owner Manuals and has
been revised to include additional information on use of the Nav-O-Matic
"Trim" knob and a Pre-Flight Ground Check. Additional no charge copies
may be obtained from the Cessna Parts Department, Part Number D-128A-13.
2) REVISION TO NAV-O-MATIC PRELIMINARY MAINTENANCE AND PARTS MANUAL
Revised pages to the Maintenance Manual are enclosed which include infor-
mation on the basic operational checks that can be made when servicing
and trouble shooting the Cessna Nav-O-Matic. Two methods for conducting
an operational check on the Cessna Nav-O-Matic are given. One with, and
one without, a portable test meter. The checks with the portable test
meter is preferred, since service experience has shown that in-flight
adjustments can be made more accurately, thus assuring more satisfactory
operation of the autopilot. Specifications on the test meter are pro-
vided - this is a meter commonly used in radio departments, and therefore
will not be offered through the Cessna Parts Department. Specifications
for the test harness are also provided - this is available from the Cessna
Parts Department under Part #10004-104, and is priced $7.92 Net.
To insure that owners obtain satisfactory operation from their Nav-O-Matics, it is
important that they be made aware of the operating techniques as outlined in the
enclosed Owner Manual Supplement. It is equally important that personnel servicing
Nav-O-Matics obtain the portable test meter and harness, and use the operational
checks as outlined in the enclosed information.
Listed below are the Accessory Kits on the Nav-O-Matic which are available from the
Cessna Parts Department for making field installations. These kits apply only to the
1962 models. Two (2) kits are required to make an installation - one panel or deck
mounted kit, and one basic components kit.
Page #2 Service Letter 62-45, dated April 27, 1962
The basic components kit (AK182-86) includes the gyro, actuator,and control head,
plus all hardware that is common to all installations on all the Models. Included
in the other kits is the additional hardware specific to those installations.
Nav-O-Matic Models Kit
AK Numbers Affected Configuration Price
AK180-45 180 - 185 Panel Mounted Only $ 55.00 (I)
AK172-53 172 - 175 Panel Mounted Only $ 55.00 (I)
AK182-84 182 - 210 Panel Mounted Only $ 55.00 (I)
AK172-54 172 - 175 Deck Mounted Only $ 55.00 (I)
AK182-85 182 - 210 Deck Mounted Only $ 55.00 (I)
AK182-86 All Models Basic Components $910.00 (I)
(Index - Models - 172 - 175 - 180 - 182 - 185 - 210 - Miscellaneous)
(Owner Notification System - No. 1, As Applicable)
ALL PRICES SUBJECT TO CHANGE WITHOUT NOTICE
CESSNA AIRCRAFT COMPANY
