LOW PRESSURE COMPRESSOR RUBS OR 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

(6)

ES-33. LOW PRESSURE COMPRESSOR

h. LOW PRESSURE COMPRESSOR -

RUBS OR BINDS WHEN TURNED BY

CONTINUED

HAND, RUBBING OR BINDING IS FELT

WHEN TUBEAXIAL FAN BLADES OR

LEFT COOLING FAN BLADES ARE

TURNED BY HAND AND MORE THAN ONE

HALF OF ACCESSORY GEARBOX (AGB)

MAGNETIC PLUG IS COVERED WITH

METAL CHIPS. - CONTINUED

A. Replace number 10 bearing

B. Clean AGB (page 7-46).

C. Replace engine oil pump

(TM 20-1).

D. Replace engine oil cooler

(TM 20-1).

E. Replace engine AC

generator (TM 20-1).

Clean

cooler

and

lines (TM 20-1).

G. Verify problem is solved.

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 no

unusual noises?

CONTINUED ON NEXT PAGE

3-263

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