REDUCTION GEARCASE
(Cont'd)
Reduction Gearcase Seal
The
tool listed will be needed
to
do the following
procedure:
MEL
1047 - Seal Installation
Tool
It
is
not necessary to remove the reduction gearcase.
To
replace the seal
on
the input shaft, use the following
procedure.
Lift
and
block the loader.
Remove the hydrostatic motor.
Use
a punch and hammer to bend the edge of the seal
inward [A).
Use
a screwdriver, pry the seal from the housing [B).
Remove the washer.
Measure the bore diameter for the
seal [C). Correct
diameter is
3.750 ± 0.
001
inch (95,25 ± 0,025 mm).
Install a dial indicator
on
the input shaft. Set the indicator
stylus against the inside of the pilot bore for the drive
motor. Rotate the shaft
360
0
•
Maximum run-out should
not exceed 0.009 inch
(0
,229 mm).
If
either bore
1.0.
or run-out is not within the
specifications,
replace the gearcase.
Remove the Quad-ring
(Item
1)
[0).
Installation: Install a new Quad-ring. Measure the new
washer
0.0
. before installing it. Maximum 0 .
0.
is
3.745
inch (95,
12
mm). The washer should be free of rough
edges and burrs and
slide into the bore freely.
Revised Nov. 96
-4-18-
B-08674
741, 742, 743,
74305
Bobcat
Loader
Service
Manual
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