SINGLE SPEED SPUR/BEVEL GEAR TRANSMISSION
Before removing the parts from the case, note the
quantity and location of the thrust washers (Fig. 034).
Clean the gears in solvent and inspect carefully. Any
damaged gear must be replaced. Also replace the mate
for the damaged gear. When gears run together, they
develop a wear pattern that will result in premature
failure if only one gear is replaced. The exception for this
is if the transmission has VERY little running time before
failure.
The axle has two roll pins through it. One connects the
single spur gear to the axle (Fig. 036). The other pin
aligns the axle and transmission case.
Fig 034
108-8140-1b
Remove the axle and intermediate shaft with the gears.
The bearing in the cover should be sealed on both sides.
Inspect the bearing and its seals for damage (Fig. 035).
Replace as necessary. The bearing is pressed into the
cover. Make sure bearing is fully seated.
Fig 036
3428-0016
Assembly
Assemble with the correct number of thrust washers.
Refer to the parts manual if there is any doubt at all. It
is not possible to locate the shafts and bearings in the
wrong location, due to differences in sizes.
Fig 035
3428-0018
WPM Drive Systems Manual
2-5
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