LOW PRESSURE COMPRESSOR RUBS OR BINDS WHEN TURNED BY HAND AND 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

ES-29. LOW PRESSURE COMPRESSOR

(2)

h. LOW PRESSURE COMPRESSOR -

RUBS OR BINDS WHEN TURNED BY

CONTINUED

HAND AND RUBBING OR BINDING IS

FELT WHEN TUBEAXIAL FAN BLADES

OR LEFT COOLING FAN BLADES ARE

TURNED BY HAND. - CONTINUED

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 no

unusual noises?

A. Replace number 10 bearing

B. Replace engine oil pump

(TM 20-1).

C. Verify problem is solved.

A. Put handle (3) in main

hydraulic pump drive gear

assembly (4).

B. Check rotation of AGB gears

by turning handle (3)

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

3-235

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