AGB GEAR TRAIN TURNS UNEVENLY (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

(10) ES-10. AGB GEAR TRAIN TURNS

ACCESSORY GEARBOX (AGB) AND

UNEVENLY (BINDS) WHEN TURNED BY

HIGH PRESSURE COMPRESSOR -

CONTINUED

HAND, RUBBING OR BINDING IS

FELT WHEN TUBEAXIAL FAN

BLADES OR LEFT COOLING FAN

BLADES ARE TURNED BY HAND AND

THERE ARE METAL CHIPS IN THE

OIL PUMP TO OIL COOLER FLUID

FILTER. - CONTINUED

A. Clean RGB lubrication

B. Clean AGB (page 7-46).

C. Replace number 10 bearing

D. Replace engine oil pump

E. Verify problem is solved.

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?

CONTINUED ON NEXT PAGE

Change 6

3-91