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Page Title:
AGB GEAR TRAIN TURNS UNEVENLY (BINDS) WHEN TURNED BY HAND AND RUBBING OR BINDING IS FELT WHEN TUBEAXIAL FAN BLADES OR LEFT CO... |
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 TM 9-2835-255-34
3-2. TROUBLESHOOTING - CONTINUED
a. ACCESSORY GEARBOX (AGB) AND
(2)
ES-2. AGB GEAR TRAIN TURNS
HIGH PRESSURE COMPRESSOR -
UNEVENLY (BINDS) WHEN TURNED BY
CONTINUED
HAND AND RUBBING OR BINDING IS
FELT WHEN TUBEAXIAL FAN BLADES
OR LEFT COOLING FAN BLADES ARE
TURNED BY HAND. - CONTINUED
CONTINUED FROM STEP 4
5
A.
Remove RGB assembly
(page 8-17).
B. 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. Salvage Gas Turbine Power
Unit (page 6-63).
B. Verify problem is solved.
6
Check rotation of power turbine
in rear engine subassembly (3)
by turning shouldered shaft (4)
clockwise. Shaft should turn
smoothly and no unusual noises
should be heard.
Does shaft turn smoothly with no
unusual noises?
CONTINUED ON NEXT PAGE
3-24
Change 6
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