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Maintenance Instructions
Clutch Disengagement/Brake Action
It is important to check and maintain blade
brake action for safe operation of the ma-
chine.
The declutched or disengaged position of the
blade clutch idler pulley is adjustable and is set to
give belt release without excessive slack and to
apply the blade brake. The blade brake is activated
by the brake band connected to the clutch engage-
ment arm. The brake is designed to stop the blades
within five (5) seconds after disengaging the clutch.
5-7/8 in.*
(149.23 mm)
Spring
Uncompressed
Clutch Engagement
*NOTE: These measurements are the presets
used at factory settings to be used for reference.
PTO Clutch Disengaged
WARNING
Knuckle Joint
2-5/16 in.*
(58.74 mm)
Arm
Use the following procedures to check and adjust
clutch disengagement and brake action:
Step 1 - Idler Pulley Maximum Travel Adjustment
Loosen the brake band adjustment nut allowing
clutch pivot stop arm and stop bolt to make contact
(refer to Blade Brake Band Adjustment illustra-
tion).
1.
Adjust the pivot stop bolt to give 1-5/8 in. to 1-3/4 in.
(41 mm to 44 mm) pulley travel from "clutch en-
gaged" to "clutch disengaged".
2.
Check and adjust the pulley travel, first engage
the clutch, then measure the distance the pulley
travels as the clutch is disengaged and the stop
arm contacts the stop bolt.
NOTE: This adjustment will prevent excessive
pulley travel that can cause belts to develop too
much slack, causing possible belt derailment
upon disengagement.
1-5/8 in. to 1-3/4 in.
(41 mm to 44 mm)
CLUTCH DISENGAGED
CLUTCH ENGAGED
Idler Pulley
Clutch Pivot
Stop Bolt
Brake Engagement
Arm
Clutch Idler Pulley Travel
ADJUSTMENTS
Clutch Pivot
Stop Arm
73
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