747-400 AMM 飞机维护手册 发动机 ENGINE 1(18)

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 1. General
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 A. This procedure gives three tasks:
 (1)  The first one is a task to manually turn the N2 rotor. The crank pad is found on the idler pad of the oil pump. The idler pad is found on the forward face of the main gearbox at approximately the
 5:30 o'clock position.
 (a)  
You can get access to the crank pad when you open each half of the thrust reverser.

 (2)  
The second one is a task that gives tha applicable torques and part numbers for the replacement of conical seat connectors on tube fittings. This task will stop leaks of conical seats on tube fittings. Tube fittings are in many different locations on the engine.

 (3)  
The third task is to unshingle the fan rotor. This task can also be used for unlocking a locked rotor.

 TASK 72-00-00-982-001-N00
 2. N2 Rotor Manual Turn Procedure
______________________________
 A. Special Tools and Equipment
 (1)  PWA 85572-1 - Foot Operated Rotator, Pratt & Whitney, Commercial Products Division, 400 Main Street, East Hartford, CT 06108
 NOTE: PWA 85572-1 Foot Operated Rotator is an alternative to these
____
 tools:

 PWA 85572-2 Foot Operated Rotator, the PWA 49058 Hand Ratchet Rotor, the PWA 76271 Engine Turning Control Kit and the PWA 102089 Engine Turning Control Kit.
 (2)  PWA 85572-2 - Hand Operated Rotator, Pratt & Whitney
 NOTE: PWA 85572-2 Hand Operated Rotator is an alternative to these
____
 tools:

 PWA 85572-1 Foot Operated Rotator, the PWA 49058 Hand Ratchet Rotor, the PWA 76271 Engine Turning Control Kit and the PWA 102089 Engine Turning Control Kit.
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////

PAD COVER FOR THE MANUAL CRANK
PULLER PWA 85768 
SEE  A 
(2 LOCATIONS) BOLT 
(2 LOCATIONS) WASHER 
CRANK MANUAL FOR THE PAD COVER 
PACKING 
OIL PUMP OF THE IDLER PAD 

MAIN GEARBOX  FWD 
A
Figure 201 (Sheet 1) N2 Rotor Manual Cranking 

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N2 Rotor Manual Cranking
Figure 201 (Sheet 2)

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G57239
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
A

INSTALLED ON THE GEARBOX A-A
L-96830(0000)
PWA 86441 Drive Unit Installation for N2 Rotor Figure 202 (Sheet 1)
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POWER UNIT
AC POWER SOURCE CABLE
CONTROLLER
SEE A
DRIVE UNIT
CABLE

CONTROLLER FOOT SWITCHCABLE
PWA 76271 ENGINE TURNING CONTROL KIT
LEFT SIDE
TOP SEE B
SEE C
RIGHT SIDE
FRONT PANEL
SEE E

SEE D
CONTROLLER
A
L-96831(0000)
PWA 86441 Drive Unit Installation for N2 Rotor Figure 202 (Sheet 2)
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