Kohler K91 Owner's Manual page 262

FIG. 94. FIG. 96.
Remove three cap screws and two nuts which secure Reinstall and align the pulley, fan (if so equipped),
the Hydrogear to the transaxle (Fig. 94). Slide the
and drive
belt.
Hydrogear rearward to disengage the cam block
pin from the cam block and lift the assembly off the transmission
fluid.
Run the engine and
Fill
the reservoir to proper level with fresh, type
transaxle (Fig.
95).
Hydrogear at low speed to circulate fluid throughout
the system and to check for leaks. Recheck the fluid
level and
add
as necessary.
Install belt guard,
R.H.
foot rest
(1968
and
1969
models), and the fender, seat, and tool box assembly.
Connect tail light
if so
equipped.
NOTE:
To
facilitate installation of hydraulic
lift
hoses (see :following paragraph) leave the tool box
assembly loose enough to
be
shifted at this time.
If
a new, Hydrogear assembly i s being installed on
a tractor which is equipped with a hydraulic lift,
transfer the implement relief valve from the replaced
Hydrogear ' t o the new assembly (Fig.
97),
and con-
nect the hydraulic hoses. Complete the tightening of
tool box assembly
FIG. 95.
Remove the strainer (Fig. 96) and clean with sol-
vent and compressed air.
The
strainer contains a
magnet to retain metal particles circulated by the
fluid.
Installation
Clean the gasket surface on the side of the trans-
axle. Make sure the strainer
i s
in place in the trans-
axle. Coat the gasket surface with petroleum jelly to
hold the gasket in place and position a new gasket
on the Hydrogear.
If
a new Hydrogear assembly
i s
being installed,
remove the plastic plugs from the inlet and outlet
ports of the new unit.
Position the Hydrogear assembly on the transaxle
with
the
cam block pin engaged in the cam block.
Start three cap screws and two nuts on the through
bolts and tighten until snug. Then, in rotation, tighten
the nuts and screws securely.
FIG.
97.
Install the left rear wheel, adjust neutral position
at the cam block, and install the instruction plate.
operation of the Hydrogear.
Lower the rear of the tractor to the' floor and
test
53