|
|
![]() -
TM
9 - 2 8 3 5-255-34
3-2. TROUBLESHOOTING - CONTINUED
( 9 ) ES-9.
AGB GEAR TRAIN TURNS
a. ACCESSORY GEARBOX (AGB) AND
U N E V E N L Y (BINDS) WHEN TURNED BY
HIGH PRESSURE COMPRESSOR -
H A N D , RUBBING OR BINDING IS FELT
CONTINUED
W H E N TUBEAXIAL FAN BLADES OR
L E F T COOLING FAN BLADES ARE
TURNED BY HAND AND MORE THAN ONE
H A L F OF AGB MAGNETIC PLUG IS
C O V E R E D WITH METAL CHIPS. -
CONTINUED
CONTINUED FROM STEP 1
CAUTION
2
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 .
A.
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 bearing (5).
B. Turn shaft (2). Listen and
feel for rubbing or binding.
C. Check rotation of power
turbine in rear engine
subassembly (6) by turning
shouldered shaft (7)
clockwise. Shaft should turn
smoothly and no unusual
noises should be heard.
Do both shafts turn
smoothly
with
no unusual noises?
_
NO
YES--
I
Go to step 5.
CONTINUED ON NEXT PAGE
3-71
Change 5
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |