RUBBING OR BINDING IS FELT WHEN TUBEAXIAL FAN BLADES OR LEFT COOLING FAN BLADES ARE TURNED BY HAND AND MORE THAN ONE HALF OF ACCESSORY GEARBOX (AGB)-continued

TM 9-2835-255-34

3-2. TROUBLESHOOTING - CONTINUED

k. POWER TURBINE AND REDUCTION (5)

ES-44. RUBBING OR BINDING IS

GEARBOX (RGB) - CONTINUED

FELT WHEN TUBEAXIAL FAN BLADES

OR LEFT COOLING FAN BLADES ARE

TURNED BY HAND AND MORE THAN

ONE HALF OF ACCESSORY GEARBOX

(AGB) AND MAIN OIL PUMP MAGNETIC

PLUGS ARE COVERED WITH METAL

CHIPS. - CONTINUED

A. If spur gearshaft (1) is

damaged, replace spur

gearshaft (1) (page 7-63).

B. If splined coupling (2) is

damaged, replace No. 12

bearing and splined coupling

(2) (page 7-86).

C. Replace number 10 bearing

D. Clean RGB lubrication

E. Clean AGB (page 7-46).

F. Replace engine oil pump

(TM 20-1).

G. Replace engine oil cooler

(TM 20-1).

H. Replace engine AC

generator (TM 20-1).

I. Clean cooler and generator

lines (TM 20-1).

J. Verify problem is solved.

CONTINUED ON NEXT PAGE

3-334

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