AGB GEAR TRAIN TURNS UNEVENLY (BINDS) WHEN TURNED BY HAND AND MORE THAN ONE HALF OF AGB AND MAIN OIL PUMP MAGNETIC PLUGS ARE COVERED WITH METAL CHIPS-continued

TM 9-2835-255-34

3-2. TROUBLESHOOTING - CONTINUED

(11) ES-11. AGB GEAR TRAIN TURNS

a. ACCESSORY GEARBOX (AGB) AND

UNEVENLY (BINDS) WHEN TURNED BY

HIGH PRESSURE COMPRESSOR -

HAND AND MORE THAN ONE HALF OF

CONTINUED

AGB AND RAIN OIL PUMP MAGNETIC

PLUGS ARE COVERED WITH METAL

CHIPS. - CONTINUED

CONTINUED FROM STEP 3

Check high pressure compressor

s y s t e m rotation by turning

s p l i n e coupling (1) clockwise.

High pressure compressor system

should turn smoothly. No rubs

o r binds should be felt and no

u n u s u a l noises should be heard.

Does high pressure compressor turn

s m o o t h l y with no unusual noises?

ROTATED

A . Replace forward engine

FOR CLARITY

B. Replace spur gearshaft

(2).

C. Clean AGB (page 7-46).

D. Replace engine oil pump

(TM 20-1).

E . Replace engine oil

c o o l e r (TM 20-1).

F . Replace engine AC

g e n e r a t o r (TM 20-1).

G . Clean cooler and gener-

ator lines (TM 20-1).

H. Replace RGB assembly

I . Verify problem is

solved.

CONTINUED ON NEXT PAGE

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