AGB GEAR TRAIN TURNS UNEVENLY (BINDS) WHEN TURNED BY HAND, LOW PRESSURE COMPRESSOR RUBS OR BINDS WHEN TURNED BY HAND AND THERE ARE METAL CHIPS IN THE OIL PUMP-continued

TM 9-2835-255-34

3-2. TROUBLESHOOTING - CONTINUED

a. ACCESSORY GEARBOX (AGB) AND

( 8 ) ES-8. AGB GEAR TRAIN TURNS

HIGH PRESSURE COMPRESSOR -

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

CONTINUED

HAND, LOW PRESSURE COMPRESSOR

RUBS OR BINDS WHEN TURNED BY

HAND AND THERE ARE METAL CHIPS

I N THE OIL PUMP TO OIL COOLER

FLUID FILTER. - CONTINUED

CONTINUED FROM STEP 2

Check rotation of RGB assembly

(1) by putting splined shaft

(2) in RGB assembly and turning

shaft (2) clockwise. Shaft

should turn smoothly and no

unusual noises should be heard.

Does shaft turn

smoothly

with

unusual noises?

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 (3) by hand. Listen and

feel for rubbing or binding.

Does low pressure compressor turn

smoothly with no unusual noises?

CONTINUED ON NEXT PAGE

3-60

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