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Page Title: AGB GEAR TRAIN TURNS UNEVENLY (BINDS) WHEN TURNED BY HAND AND LOW PRESSURE COMPRESSOR RUBS OR BINDS WHEN TURNED BY HAND-conti...
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TM 9-2835-255-34
3-2. TROUBLESHOOTING - CONTINUED
(3) ES-3. AGB GEAR TRAIN TURNS
a. ACCESSORY GEARBOX (AGB) AND
UNEVENLY (BINDS) WHEN TURNED BY
HIGH PRESSURE COMPRESSOR -
HAND AND LOW PRESSURE COMPRESSOR
CONTINUED
RUBS OR BINDS WHEN TURNED BY
HAND. NO OTHER ROTATION OR METAL
CHIPS NOTED. - 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
A. Remove AGB module
1
B. Remove forward engine module
CAUTION
Extreme care should be taken
when handling low pressure
turbine rotor shaft (1).
Banging, jarring or rough
handling will cause damage to
No. 5 b e a r i n g c a r b o n s e a l .
C. Lift end (2) of shaft (1)
slightly to center shaft
(1), then push shaft (1) in
to establish clearance
between power turbine disc
(3) and nozzle (4) and to
load No. 5 b e a r i n g ( 5 ) .
D. Turn shaft (1), listen and
feel for rubbing or binding.
Does shaft turn smoothly with no
unusual noises?
CONTINUED ON NEXT PAGE
3-29
Change 5

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