Rotation of the HP Compressor with the Hand Turning Tool [IAE]

TASK 72-00-00-860-010-A
Rotation of the HP Compressor with the Hand Turning Tool

1. Reason for the Job
This task gives the procedure for the hand turning of the HP compressor through the gearbox.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 95 and 85 lbf.in (1.07 and 0.96 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V10-077)	lubricant (engine oil)

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
1	PACKING	AIPC 72-60-21-80-080

E. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 70-23-13-911-010-A	Procedures for the Installation of Preformed Packings
TASK 71-00-00-710-012-B	Test No.3 : Idle Leak Check
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
Crank Cover

3. Job Set-up
Subtask 72-00-00-941-079-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 72-00-00-010-092-A ** ON A/C NOT FOR ALL

B. Open the fan cowls (Ref. AMM TASK 71-13-00-010-010)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

4. Procedure
Subtask 72-00-00-010-098-A ** ON A/C NOT FOR ALL

A. Remove the crank cover

Crank Cover ** ON A/C NOT FOR ALL

(1) Remove the two nuts (4) and the two washers (3) which attach the crank cover (2) to the external gearbox module (6).
(2) Remove the crank cover (2) from the external gearbox module (6).
(3) Remove and discard the packing (1).

Subtask 72-00-00-869-077-A ** ON A/C NOT FOR ALL

B. Turn the HP compressor through the gearbox

Crank Cover ** ON A/C NOT FOR ALL

(1) Install a 0.562 in. (14.2 mm) hexagonal socket in the starter idler gear (5).
(2) Install a torque wrench on the hexagonal socket.

NOTE: The direction of rotation is given facing the engine.

(3) Turn the starter idler gear clockwise to turn the HP compressor in a counterclockwise direction, or opposite, as required.
(4) Remove the torque wrench and the hexagonal socket from the starter idle gear.

Subtask 72-00-00-410-098-A ** ON A/C NOT FOR ALL

C. Install the crank cover.

Crank Cover ** ON A/C NOT FOR ALL

(1) Apply V10-077lubricant (engine oil) to a new packing (1).
(2) Install the AIPC 72-60-21-80-080 PACKING (1) into the groove of the crank cover (2) (Ref. AMM TASK 70-23-13-911-010).
(3) Align the holes in the crank cover (2) with the studs on the external gearbox module (6).
(4) Install the crank cover (2) to the external gearbox module (6).
(5) Install the two washers (3) and the two nuts (4) which attach the crank cover (2) to the external gearbox module (6).
(6) TORQUE the nuts (4) to between 95 and 85 lbf.in (1.07 and 0.96 m.daN )

(Ref. AMM TASK 70-23-11-911-013)

5. Close-up
Subtask 72-00-00-410-099-B ** ON A/C NOT FOR ALL

A. Close Access
(1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Remove the WARNING NOTICE(S).
(3) Do an idle leak check (Ref. AMM TASK 71-00-00-710-012) and examine the installed crank cover for oil leaks.

[Rev.10 from 2021] 2026.04.01 02:43:58 UTC