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

TM 9-2835-255-34

3-2. TROUBLESHOOTING - CONTINUED

(7) ES-7. A G B G E A R T R A I N T U R N S

a. ACCESSORY GEARBOX (AGB) AND

UNEVENLY (BINDS) WHEN TURNED BY

HIGH PRESSURE COMPRESSOR -

HAND, LOW PRESSURE COMPRESSOR

CONTINUED

RUBS OR BINDS WHEN TURNED BY

HAND AND MORE THAN ONE HALF OF

AGB MAGNETIC PLUG IS COVERED

W I T H METAL CHIPS. - CONTINUED

CONTINUED FROM STEP 2

A. Replace engine assembly

(TM 34-1).

B. Replace engine oil

cooler (TM 20-1).

C. Replace engine AC

generator (TM 20-1).

D. Clean oil cooler and AC

generator lines

(TM 20-1).

E. Verify problem is

solved.

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 blades by

turning spline coupling (2).

Listen and feel for rubbing or

binding.

Do compressors turn

smoothly

with

n o unusual noises?

CONTINUED ON NEXT PAGE

3-53

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