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Note: Failure to periodically adjust the belt tension will result in severe belt wear and
premature belt failure.
This model comes with a belt brake, which is a safety feature that stops the blades from turning
after the clutch is disengaged. The only time the brake should be in contact with the belt is when
the clutch is disengaged.
The brake stud must be adjusted. If the brake stud is not adjusted correctly, the
blades will still spin even though the clutch may be in the disengaged position.
Always shut mower engine off before servicing.
To adjust the brake, place the clutch in the engaged position. Loosen the bolt on the top of the
brake stud. Slide the brake stud in the slot until there is about 5/8" of clearance between the belt
and the brake stud. Tighten the bolt at the top of the brake stud. To ensure that the brake works
properly the spring length must be set correctly. With the clutch disengaged make sure the spring
length is no more then 2-3/4". After the belt breaks in the clearance between the belt and the
brake stud should be around 1/2". To prevent over-braking the brake clearance should be
checked every 3-4 hours.
If brake stud is not set in correct position, under-braking or over-braking may occur.
If over-braking occurs, premature belt failure or a possible fire could occur due to
excessive friction and overheating.
Front
Brake Stud
Figure 7: Belt Pattern, Spring Adjustment, and Brake Adjustment
Clutch Arm
Engine
5/8" Initial Break-in Brake Setting
With Clutch Engaged
1/2" Running Brake Setting With
Clutch Engaged
0" With Clutch Disengaged
8
Clutch Engagement
Clutch Engaged
Spring Length 2-1/4"
to 2-3/8"
Clutch Disengaged
Spring Length No
Less than 2-3/4"
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