Friction Adjustment Parking Brake; Parking Brake Adjustment; 1975 "D" Series Tractors Neutral Adjustment; Lever Friction Adjustment - Kohler K91 Owner's Manual

2 . The proper adjustment i s achieved when a pull
of
24
to
28 Ibs.
i s reached, measured near the
top of the speed control lever.
FRICTION ADJUSTMENT Parking Brake
A friction adjustment may be necessary to main-
tain the position of the parking brake control in the
disengaged position.
1.
Tighten the nut securing the two friction wash-
ers (6-43) at the parking brake lever (6-36).
Try pushing the tractor both forward and
reverse to make sure the parking pawl
i s
fully
engaged.
PARKING BRAKE ADJUSTMENT
1.
Engage the parking brake.
2 .
Adjust the trunnion
(6-29)
on the brake rod
(6-25) until there
is
1/8"
clearance between the
washer and trunnion (6-26) at the other (front)
end of the rod.
3 . Tighten the lock nut at the adjusting trunnion
(6-25).
1975 "D" SERIES TRACTORS
NEUTRAL ADJUSTMENT
An access hole is provided i n the right console
panel for the neutral adjustment
If
the tractor creeps when in neutral, adjust as
follows:
1. Block the rear wheels
off
the ground.
2 .
Loosen the lock screw holding the eccentric
assembly (Fig. 10).
3.
Depress the brake pedal and keep it depressed
during adjustment.
FIG. 10.
Transmission Neutral
&
Speed Control
lever Tension Adjustment
4.
Start the engine and run it at half throttle.
Disengage the parking brake. Insert a screw-
driver through the hole in the side panel and
rotate the eccentric cam pin to a point midway
between forward wheel rotation and backward
wheel rotation. Retighten the lock screw hold-
ing the eccentric assembly.
5.
Increase engine speed to full throttle. Move the
speed control lever in both directions and re-
turn it to neutral with the pedal. Repeat several
times. Recheck adjustment and readjust
if
required.
To position the speed control lever at the neutral
position of the console slot, depress the brake pedal
and adjust the length of the shift rod arm by rotating
i t i n its trunnion.
LEVER FRICTION ADJUSTMENT
The speed control lever
is
friction loaded to hold
selected speed in either direction.
If
the lever does
not remain where it i s set during operation, the
friction may be increased b y tightening the adjusting
nut through the access hole located in the right panel
(Fig. 10). The proper amount of friction i s obtained
when approximately 18 pounds of force at the handle
moves the control lever.
PARKING BRAKE ADJUSTMENT
1. With the engine shut off, press and release the
brake pedal.
2 . Engage the parking brake by placing the lever
in the top slot of the console panel.
3.
Check the need for adjustment by moving the
speed control lever back and forth to determine
if
the linkage can be moved from neutral
toward either the forward or reverse positions.
FIG. 11. Parking Brake Adjustment
4 . If
the speed control lever can be moved toward
either position, shorten the length of the park-
ing brake arm assembly rod (see Fig. 11) by
turning the nut against the trunnion.
23