Installation of the MLG Tachometer-Drive

TASK 32-42-68-400-003-A
Installation of the MLG Tachometer-Drive

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

FIN: 2678GM ** ON A/C NOT FOR ALL
FIN: 2679GM ** ON A/C NOT FOR ALL
FIN: 2680GM ** ON A/C NOT FOR ALL
FIN: 2681GM ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY BARRIER(S)
No specific	1	WARNING NOTICE(S)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
TASK 32-42-57-400-001-A	Installation of the Tachometer

3. Job Set-up
Subtask 32-42-68-941-051-A

A. Safety Precautions
(1) Make sure that the SAFETY BARRIER(S) are in position.
(2) Make sure that the ground safety locks are on the landing gear (Ref. AMM TASK 32-00-00-481-001).
(3) On the panel 400VU:

make sure that the landing-gear control-lever 6GA is in the DOWN position
make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the landing gear.

4. Procedure
Subtask 32-42-68-420-050-A

A. Installation of the MLG Tachometer-Drive
(1) Install the applicable tachometer (Ref. AMM TASK 32-42-57-400-001):
(a) FOR [2678GM] (DRIVE ASSY-TACHOMETER,WHEEL 4)
install 22GG.
(b) FOR [2679GM] (DRIVE ASSY-TACHOMETER,WHEEL 3)
install 20GG.
(c) FOR [2680GM] (DRIVE ASSY-TACHOMETER,WHEEL 2)
install 21GG.
(d) FOR [2681GM] (DRIVE ASSY-TACHOMETER,WHEEL 1)
install 19GG.

NOTE: When you install the tachometers you will install the tachometer drives.

5. Close-up
Subtask 32-42-68-942-050-A

A. Removal of Equipment
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the SAFETY BARRIER(S).
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 12:31:32 UTC