Walker PA6685 - Manual (Page 14)

Operating Instructions
12
RECOMMENDATIONS FOR AERATING
For best results the ground must have a sufficient
amount of moisture to allow the tines maximum pen-
etration.
IMPORTANT: Operate the engine at full speed
when operating the aerator, to allow the engine to
produce full horsepower and to increase efficiency
of the engine cooling system.
•
Do not drive the mower backwards with the
aerator in the down position--it may cause
severe turf damage.
•
Driving the tractor too slow may cause turf
damage.
•
Driving the tractor too fast will make aeration
holes appear less frequently and too shallow
(short plugs) may do a less than desirable job.
•
Do not engage the PTO with the drive
assembly in the transport position.
STOPPING THE MACHINE
1. Disengage the PTO clutch.
2. Pull the steering levers to the NEUTRAL
position and then move the FSC lever
backward to the NEUTRAL-PARK position.
3. Slow the engine to idle; put the throttle in the
IDLE position.
4. Retract the tines into the transport position
using the lift lever.
5. Turn the ignition switch OFF.
6. Engage the parking brake.
IMPORTANT: The hydrostatic transmissions
lock to prevent the machine from rolling freely
with the engine stopped. However, if the
machine is parked on a slope, it is necessary to
ENGAGE the parking BRAKE to prevent the
machine from creeping. This is due to a small
amount of slippage in the hydrostatic transmis-
sions, especially when transmission fluid is
warm.
WARNING
A brake stops the machine from free-
wheeling within five (5) seconds after dis-
engaging the PTO clutch. If the brake sys-
tem malfunctions and the machine does
not stop within five (5) seconds, the brake
should be adjusted or repaired before op-
erating the machine. Refer to the appro-
priate Tractor Owner’s Manual for
adjustment procedures.
WARNING
Remove the key from the ignition switch
when leaving the machine unattended.
This will prevent children and inexperi-
enced operators from starting the engine.