Adjusting Cutting Height; Transmission Lockout - Walker D21d Operator's Manual

Operating Instructions
In case either of the transmission drive
belts break during operation, and if the
machine is on a slope, the machine will
freewheel down the slope.
control, immediately
steering levers and simultaneously (2)
Move the FSC to the NEUTRAL-PARK
position. When the machine is stopped or
moving slowly, engage the parking brake.
NOTE: The emergency stop procedure is exactly
the same procedure as used to normally stop and
park the machine.

ADJUSTING CUTTING HEIGHT

The engine must be stopped before ad-
justing cutting height. Disengage the blade
clutch (PTO), engage the parking brake,
stop the engine, and remove the ignition
key. Wait for all move ment to stop before
getting off the seat.
Cutting height is adjusted by positioning the four (4)
re tainer hitch pins in a series of six vertical holes on
the deck support pins. Lift handles have been pro-
vided on each end of the deck to assist in raising the
deck while positioning the hitch pins. Cutting heights
range from 1.5 in. (38 mm) [top holes] to 4 in. (102
mm) [bottom holes] in 1/2 in. (13 mm) incre ments.
Deck Support
Pin
Washer
Hitch Pin
Cutting Height Adjustment
42
WARNING
To maintain
(1) Release the
WARNING
Lift Handle

TRANSMISSION LOCKOUT

IMPORTANT: DO NOT TOW this mower with the
transmission lockout engaged. Towing can produce
excessive internal pressure and damage the trans-
mission.
To move the mower with the engine NOT running
(dead battery, maintenance, etc.), the hydrostatic
transmissions are unlocked (released).
1. Raise the body.
2. Lift the transmission lockout lever on both the
RH and LH transmissions and secure into place
with the locking cam.
3. The mower will "freewheel" with the levers in the
LOCKOUT position. The levers must be in the
highest position to completely unlock the trans­
missions.
Lockout Lever
Plunger
Depressed
Lockout Lever - Freewheel Position
4. After moving the mower, release the locking
cam, placing the lever DOWN in the normal OP-
ERATING position. Make sure the transmis­
sion lockout plunger on the side of the transmis­
sion case (activated by the lockout lever) is
com pletely released, otherwise the transmis­
sion operation will be erratic.
Cam in
LOCKOUT
Position