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Page Title: AGB GEAR TRAIN TURNS UNEVENLY (BINDS) WHEN TURNED BY HAND, RUBBING OR BINDING IS FELT WHEN TUBEAXIAL FAN BLADES OR LEFT COOLI...
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TM 9-2835-255-34
3-2. TROUBLESHOOTING - CONTINUED
a.
ACCESSORY GEARBOX (AGB) AND
(9) ES-9. AGB GEAR TRAIN TURNS
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 MORE THAN ONE
HALF OF AGB MAGNETIC PLUG IS
COVERED WITH METAL CHIPS. - CONTINUED
FROM STEP 5
8
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?
YES
NO
A. Replace number 10 bearing
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. Verity problem is solved.
CONTINUED ON NEXT PAGE
3-78
Change 6

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