Kohler K91 Owner's Manual page 267

DIFFERENTIAL
CASE LF
BULL
GEAR DIFFERENTIAL
PINION GEARS
FIG.
101.
Disassembled Differential
6.
Carefully slide the differential assembly out of
the case.
7.
Remove gear assembly consisting of Nos.
103395, 101 887
and
102781. Also
remove large gear
No. 101 885
intact.
8.
Slide gears off of the
No. 5965
shaft.
9.
Remove the four nuts and bolts from the
differ-
ential assembly. The unit may now
be
separated allow-
ing the replacement of the bull gear, pins, pinion
gears or the differential cases. Note the position of
the pinion gears. Adjacent pinions are installed in
opposite directions (teeth up or teeth down). There-
fore, the positions of diagonally opposite pinions are
the same (see photo).
FIG. 102.
Pinion Gear Placement
10. The
axle gears may
be
separated from the
axle by removing the snap ring.
NOTE:
During re-
assembly, tighten all bolts securely in sequence.
PARKING BRAKE AND OIL FILTER
1.
To replace the oil filter, remove by turning
counter-clockwise. This throw-away filter should
be
replaced every year, or every
100
operating hours.
FIG.
103,
Side View Showing Filter and Parking Brake
2. TO remove the parking brake
lever, drive out
the roll pin using a
1/8"
punch. Slip the brake lever
off the shaft.
3.
Remove the parking pawl from inside the trans-
mission case.
NOTE:
During reassembly the parking
pawl should be pointing toward the rear and the
parking 'brake lever toward the front when installing
the roll pin.