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TM9-2835-255-34
ACCESSORY GEARBOX CLEANING AND REPAIR (Sheet 32 of 40)
9. CHECK TO SEE IF BEARING OUTER RACE (1)
IS HIGHER OR LOWER THAN GASKET (2) AND
MEASURE DISTANCE BETWEEN BEARING OUTER
RACE (1) AND GASKET (2). RECORD DIFFERENCE
AS DIMENSION B.
a.
Place measuring bar (3) across housing (4),
on gasket (2) and over spur gear (5).
b.
Using depth gage, measure from top of bar
(3) to outer race (1) and from top of bar (3) to
gasket (2). Subtract the smaller from the
larger. Record as dimension B.
c.
Check and make note that outer race (1) is
above or below gasket (2).
d.
Remove measuring bar (3), spur gearshaft
assembly (5) and gasket (2).
10. DETERMINE REQUIRED THICKNESS OF SPUR
GEAR SPACER (6).
a.
lf bearing outer race (I) was below gasket (2).
add dimensions A and B and record as
dimension C.
b.
If bearing outer race (1) was above gasket
(2), subtract dimension B from dimension A
and record as dimension C.
c.
Subtract 2.425 from dimension C. Result is
thickness of spacer (6) required. If original
spacer (6) is not proper thickness, replace.
Go on to Sheet 33
7-77
Change 6
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