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WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
Blade Brake Action - All Models
Model MS, MW, MC, MD, MT
Check the function of the cutter blade brake (and blow-
er brake on GHS models) by engaging the blade clutch
(PTO), operating the engine at full throttle, then disen-
gaging the clutch and measuring how quickly the
blades stop. Watch the rotation of the blade drive shaft
and blower pulley as a visual indication that movement
has stopped. If the brake is working properly, all ro-
tation will stop five (5) seconds after disengage-
ment of the clutch. If the brake system malfunctions -
blades do not stop in five (5) seconds - adjust or repair
the brake before operating the mower. Refer to AD-
JUSTMENTS of Blade Clutch (PTO) in the Service
Procedures Section.
Model MB
Check the function of the cutter blade brake by engag-
ing 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 indication that movement
has stopped. If the brake is working properly, all ro-
tation will stop five (5) seconds after disengage-
ment of the clutch. If the brake system malfunctions -
blades do not stop in five (5) seconds - replace the
brake before operating the mower.
Brake Band - Model MW
(View with PTO Gearbox Assembly Removed)
PTO U-Joints - Model MT
The PTO U-joints should be inspected yearly for loose-
ness and wear. If either is noticed, the respective shaft
or tube should be replaced. A worn U-joint can cause
vibration and extensive damage to the PTO and deck
gearboxes.
WARNING
It is important to check and maintain blade
brake action for safe operation of the ma-
chine.
PTO Gearbox
Brake Band Adjustment Nuts
on These Ends Should Be
Adjusted Out Evenly
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