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 (2)

ES-41. 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)

MAGNETIC PLUG IS COVERED WITH

METAL CHIPS. - CONTINUED

Tools:

Supplies:

General mechanic's tool kit:

Wiping rag (Item 14, Appendix B)

automotive (SC 5160-90-N26)

References:

TM 20-1

A. Remove RGB assembly

B. 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

unusal noises?

A. Salvage Gas Turbine Power

Unit (pa e 6-63).

B. Clean AGB (page 7-46).

C. Replace engine oil pump

(TM 20-1).

D. Replace engine oil cooler

(TM 20-1).

E. Replace engine AC

generator (TM 20-1).

F. Clean cooler and generator

lines (TM 20-1).

G. Verify problem is solved.

CONTINUED ON NEXT PAGE

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