AGB GEAR TRAIN TURNS UNEVENLY (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

TROUBLESHOOTING - CONTINUED

3-2.

(2)

E S - 2 . AGB GEAR TRAIN TURNS

a. ACCESSORY GEARBOX (AGB) AND

UNEVENLY (BINDS) WHEN TURNED BY

HIGH PRESSURE COMPRESSOR -

H A N D AND RUBBING OR BINDING IS

CONTINUED

FELT WHEN TUBEAXIAL FAN BLADES

OR LEFT COOLING FAN BLADES ARE

T U R N E D BY HAND. - CONTINUED

Supplies:

Tools:

Wiping rag (Item 14, Appendix B)

General mechanic's tool kit:

automotive (SC 5180-90-N26)

References:

AGB gear train handle (Item 42,

TM 34-1

Appendix D)

Disconnect engine assembly

from transmission assembly

(TM 34-1). .

Remove AGB module (1) from

engine (page 7-6).

Remove spur gearshaft (2).

Check to see if spur gear-

shaft (2) is broken or

damaged.

qearshaft

broken

damaged?

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

or binds should be felt and

no unusual noises should

be heard.

Does handle turn smoothly with no

unusual noises?

CONTINUED ON NEXT PAGE

3-21

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