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 TM 5-2420-224-34
CHAIN SAW REPAIR (CONT)
5.
S u r f a c e on handle assembly near gears
should show two interconnecting polished
circles without a step; packing groove and
surface should be smooth.
Handle assembly sleeve bearing bores should
6.
b e grey in color; r e p l a c e if bores are
yellow-bronze.
7.
Drive shaft diameter should be smooth on
each side of V-groove keyway; signs of
polishing are normal.
If drive shaft wear is in excess of normal
a.
polishing, or if drive shaft is grooved or rough,
replace sleeve bearings, drive shaft, and seal.
ASSEMBLY
NOTE
A p p l y coat of lubricating o i l to
packings prior to assembly.
INSTALL two screw PLUGS (1 and 2) in
1.
handle assembly (3).
I F REMOVED, INSTALL two new sleeve
2.
BEARINGS (4 and 5).
INSTALL two new packings (6 and 7), spring
3.
washer (8), SPRING (9), spring washer (10),
and retaining ring (11) on valve (12).
21-41
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