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-continued

TM 9-2835-255-34

3 - 2 . TROUBLESHOOTING - CONTINUED

( 4 ) E S - 4 3 . RUBBING OR BINDING IS

k. POWER TURBINE AND REDUCTION

FELT WHEN TUBEAXIAL FAN BLADES

GEARBOX (RGB) - CONTINUED

OR LEFT COOLING FAN BLADES ARE

TURNED BY HAND AND THERE ARE

METAL CHIPS IN THE OIL PUMP TO

OIL COOLER FLUID FILTER. -

CONTINUED

Supplies:

Tools:

Wiping rag (Item 14, Appendix B)

General mechanic's tool kit:

Writing paper (Item 41,

automotive (SC 5180-90-N26)

Vernier depth gage (Item 139,

Writing pencil (Item 27,

Appendix B)

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

unusual noises?

Check rotation of power turbine

in rear engine subassembly (3)

by turning shouldered shaft (4)

clockwise. Shaft should turn

smoothly and no unusual noises

should be heard.

Does shaft turn smoothly with no

unusual noises?

CONTINUED ON NEXT PAGE

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