Operating Instructions
33
CAUTION
If the cutting blades strike a stationary ob-
ject while mowing, stop the mower imme-
diately, disconnect the spark plug wires, lift
the deck, and inspect the deck and blades
thoroughly for damage. Make sure that the
blade timing has not been dis turbed (the
blades should be at 90 degrees to each
other). Refer to REPLACING/RE PAIRING
the Blade Overload Shear Bolts in
Mainte-
nance Instructions
if blades are out of time.
Also, make sure the blade retain ing nuts
are torqued to 60 lb·ft (81 N·m).
STOPPING THE MACHINE
1. Pull the steering levers to the NEUTRAL-PARK
position and then move the FSC lever backward
to the NEUTRAL-PARK position.
2. Slow the engine to a fast idle; put the throttle in
the 1/2 throttle position.
3. Disengage the blade clutch.
NOTE: Reducing engine speed prior to disen-
gaging the blade clutch will reduce wear on the
brake band and brake drum, increasing the life
of these components.
WARNING
A brake stops the cutter blades from
freewheeling within ve (5) seconds after
disengaging the clutch. If the brake sys-
tem malfunctions and the blades do not
stop within ve (5) seconds, the brake
should be repaired or replaced before op-
erating the mower. Contact your Walker
dealer.
4. Turn the ignition switch OFF. When stopping
the engine, do not reduce the throttle below 1/2
speed. Since the engine is equipped with a
shutdown solenoid, stopping at low idle may
cause engine run-on or backfiring.
WARNING
Remove the key from the ignition switch
when leaving the mower unattended. This
will prevent children and inexperienced
operators from starting the engine.
5. Engage the parking brake by moving the lever
forward. Also, engaging the parking brake is
recommended when stopping or parking the
machine in a confined space with little tolerance
for movement.
IMPORTANT: The hydrostatic transaxles lock
to prevent the mower from rolling freely with the
engine stopped. However, if the mower is
parked on a slope, it is necessary to ENGAGE
the parking BRAKE to prevent the mower from
creeping. This is due to a small amount of slip-
page in the transaxles, especially when trans-
mission fluid is warm.
WARNING
If either of the transmission drive belts
break during slope operation, the machine
will freewheel down the slope. To maintain
control, immediately (1) Release the
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 ex-
actly the same procedure as used to normally
stop and park the machine.
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