AGB GEAR TRAIN TURNS UNEVENLY (BINDS) WHEN TURNED BY HAND AND LOW PRESSURE COMPRESSOR RUBS OR BINDS WHEN TURNED BY HAND-continued

T M 9 - 2 8 3 5 - 2 5 5-34

3-2. TROUBLESHOOTING - CONTINUED

E S - 3 . AGB GEAR TRAIN TURNS

(3)

a . ACCESSORY GEARBOX (AGB) AND

UNEVENLY (BINDS) WHEN TURNED BY

HIGH PRESSURE COMPRESSOR -

HAND AND LOW PRESSURE COMPRESSOR

CONTINUED

RUBS OR BINDS WHEN TURNED BY

HAND. NO OTHER ROTATION OR METAL

C H I P S NOTED. - CONTINUED

FROM STEP 1

WARNING

Compressor blades are sharp and

can cut you. Be careful not to

pinch fingers between blades

and vanes when turning

compressor.

Turn low pressure compressor

blades (1) by hand and high

pressure compressor by ,turning

spline coupllng (2). Listen

and feel for rubbing or

binding.

Do compressors turn

smoothly

with

no unusual noises?

YES

Put handle

( 3 ) in main

hydraulic pump drive gear

assembly (4).

B. Check rotation of AGB gears

by turning handle (3)

clockwise. Handle should

t u r n s m o o t h l y . NO r u b s o r

binds should by felt and no

unusual noises should be

heard.

Does handle turn smoothly with no

unusual noises?

CONTINUED ON NEXT PAGE

3-31

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