LOW PRESSURE COMPRESSOR RUBS OR BINDS WHEN TURNED BY HAND, RUBBING OR BINDING IS FELT WHEN TUBEAXIAL FAN BLADES OR LEFT COOLING FAN BLADES ARE TURNED BY HAND-continued

TM 9-2835-255-34

3-2. TROUBLESHOOTING - CONTINUED

( 1 0 ) E S - 3 7 . LOW PRESSURE COMPRESSOR

h. LOW PRESSURE COMPRESSOR -

RUBS OR BINDS WHEN TURNED BY

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 ACCESSORY GEARBOX

(AGB) AND MAIN OIL PUMP

MAGNETIC PLUGS ARE COVERED WITH

METAL CHIPS. - CONTINUED

CONTINUED FROM STEP 1

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 bearing carbon seal.

A. Lift end (2) of shaft (1)

slightly to center shaft

(1), then push shaft (1) in

to establish clearance

( 3 ) a n d n o z z l e 4) a n d t o

load No. 5 bearing ( 5 ) .

B. Turn shaft (1), listen and

feel for rubbing or binding.

Does shaft turn smoothly with no

unusual noises?

CONTINUED ON NEXT PAGE

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