Assembly Of Motor - Kohler K91 Owner's Manual

Assembly of Motor
1.
Install a new "0" ring seal in the recess of the
output shaft seal retainer.
2.
lnstall the aluminum centering pilot on the out-
put end of the motor end cap and retain with the two
1/4"
cap screws.
5.
Install the motor shaft spring clip with the
6.
Apply lOW30 oil on the valve plate surface,
the cylinder block valving surface and through the
valving ports into the cylinder bores.
prongs toward the output gear.
FIG. 83.
3 . Install the valve plate with the steel side toward
the motor end cap, making sure i t i s centered over the
needle bearing and over the end cap dowel pin.
4.
Apply 10W30 oil to the bearing surfaces of the
shaft and install the motor shaft with the gear at the
output end of the motor end cap.
FIG. 84.
Spring Retaining
Clip
FIG. 85.
Install Piston-Cylinder
Block
Assembly
7.
Slide the cylinder block, pistons, slippers and
slipper retainer assembly on the motor shaft. Push it
in place until the spring retaining clip seats.
8.
Install the ball bearing in the end of the alumi-
num housing with lettered end out.
9.
Install the four
3/8-16
cap screws through the
aluminum housing and install a new gasket over the
bolts.
10.
Install the thrust plate on the swash plate
surface of the housing.
11.
With the webbed side of the housing to the
top, using the screws as a pilot, install
the housing
over the shaft and push
it
in enough to start the
screws. Snug up the screws evenly until the housing
i s approximately
3/16"
away from the end cap.
Do not
tighten at ,this time.
12.
Install the bearing retaining ring on the end
of the pump shaft.
13.
Install the large
"0"
ring seal in the housing
recess around the outside of the bearing.
14.
Ins'tall the end cover and secure with the four
Allen head screws and tighten evenly.
15. Push the housing up flush to seat against the
end cap and tighten all four screws evenly.
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