AGB GEAR TRAIN TURNS UNEVENLY (BINDS) WHEN TURNED BY HAND, RUBBING OR BINDING IS FELT WHEN TUBEAXIAL FAN BLADES OR LEFT COOLING FAN BLADES ARE TURNED BY HAND-continued

TM 9-2835-255-34

3-2.

TROUBLESHOOTING - CONTINUED

E S - 9 . AGB GEAR TRAIN TURNS

a. ACCESSORY GEARBOX (AGB) AND

(9)

U N E V E N L Y (BINDS) WHEN TURNED BY

HIGH PRESSURE COMPRESSOR -

H A N D , RUBBING OR BINDING IS FELT

CONTINUED

W H E N TUBEAXIAL FAN BLADES OR

L E F T COOLING FAN BLADES ARE

TURNED BY HAND AND MORE THAN ONE

H A L F OF AGB MAGNETIC PLUG IS

C O V E R E D WITH METAL CHIPS. -

CONTINUED

CONTINUED FROM STEP 8

9 A.

Put handle (1) in main

hydraulic pump drive gear

assembly (2).

B. Check rotation of AGB gears

by turning handle (1)

clockwise. Handle should

turn smoothly. No rubs or

binds should be felt and no

unusual noises should be

heard.

Does handle turn

smoothly

with

unusual noises?

A. Clean AGB (page 7-46).

B. Replace engine oil pump

(TM 20-1).

C. Replace engine oil

cooler (TM 20-1). .

D. Replace engine AC

generator (TM 20-1).

E. Clean cooler and gener-

ator lines (TM 20-1).

F. Install RGB assembly

G. Verify problem is

solved.

CONTINUED ON NEXT PAGE

3-79

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