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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
I
I
a . ACCESSORY GEARBOX (AGB) AND
( 1 0 ) ES-10. AGB GEAR TRAIN TURNS
HIGH PRESSURE COMPRESSOR -
U N E V E N L Y (BINDS) WHEN TURNED BY
CONTINUED
H A N D , RUBBING OR BINDING IS
F E L T WHEN TUBEAXIAL FAN
B L A D E S OR LEFT COOLING FAN
BLADES ARE TURNED BY HAND AND
T H E R E ARE METAL CHIPS IN THE
O I L PUMP TO OIL COOLER FLUID
F I L T E R . - CONTINUED
CONTINUED FROM STEP 6
YES
NO
Go to step 11.
7
Check high pressure compressor
system rotation by turning
spline coupling (1) clockwise.
High pressure compressor system
should turn smoothly. No rubs
or binds should be felt and no
unusual noises should be heard.
Does high pressure compressor turn
smoothly with no unusual noises?
NO
YES
A.
Replace spur gearshaft
(2).
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 gener-
ator lines (TM 20-1).
G.
Go to step 8.
CONTINUED ON NEXT PAGE
Change 5
3-89
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