Walker MB (18 HP) - Manual (Page 48)

Maintenance Instructions
46
CHECKING/SERVICING/
REPLACING/REPAIRING
Blade Brake Action
Check the function of the cutter blade brake by
engaging the blade clutch (PTO), operating the
engine at full throttle, then disengaging the clutch
and measuring how quickly the blades stop. Watch
the rotation of the blade drive shaft as a visual indi-
cation that movement has stopped. If the brake is
working properly, all rotation will stop five (5)
seconds after disengagement of the clutch. If the
brake system malfunctions -- blades do not stop in
five (5) seconds -- repair the brake before operating
the mower.
REPLACING/REPAIRING
IMPORTANT: ALWAYS use genuine factory re-
placement parts. Substitute parts CAN result in
product malfunction and possible injury to the oper-
ator and/or others.
Drive Belts
There are two (2) individual belts on the machine:
•
Engine/PTO Belt
•
Ground Drive Belt
The belts may be removed and replaced using the
procedures described on the following pages.
WARNING
It is important to check and maintain blade
brake action for safe operation of the ma-
chine.
DANGER
To prevent accidental starting of the
engine when replacing parts or repairing
the machine, remove the key from the
ignition switch and disconnect the spark
plug wires.
Engine/PTO
Belt
Ground Drive Belt
Belt Locations