Maintenance Instructions | ADJUSTMENTS |
Use the following procedures to check and adjust clutch disengagement and brake action:
Stop Block Eccentric Adjustment - Step 1
Use the stop block attached to PTO belt tightener arm to set the bottom position of the clutch idler pulley in the disengaged position. The stop block should contact the chassis to stop the clutch idler pulley from moving further down in the disengaged position. If the stop block is not contacting the chassis in the disengaged position, it will be necessary to loosen the brake band adjustment nut.
The stop block is an “eccentric” block that will allow four adjustment positions from 5/16 in. (8 mm) to 11/16 in. (17 mm).
11/16 in. |
| 9/16 in. |
(17 mm) |
| (14 mm) |
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7/16 in. |
| 5/16 in. |
(11 mm) |
| (8 mm) |
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PTO Belt Tightener Stop Block Adjustments
Clutch Idler Pulley Travel Adjustment - Step 2
Adjust the stop block to give 1 in. (25 mm) to
NOTE: The importance of this adjustment is if the pulley travel is excessive and the belt develops too much slack, the belt will derail when disengaged.
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Block |
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Engage | ||||||
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| Disengage |
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Stop Block |
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| 1 in. to | ||
Contacting Frame |
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Clutch Idler Pulley Travel Adjustment
Blade Brake Band Adjustment - Step 3
After the pulley travel is set, make the following adjustment as needed:
1.Adjust the blade brake band, using the adjust- ment nut until there is a gap of approximately 1/8 in. (3 mm) between the PTO belt tightener stop block and chassis. If there are not enough threads on the brake band for adjustment, lengthen the brake actuator rod.
Blade Brake Band
Adjustment Nut
Brake Actuator
Rod
Blade Brake Band Adjustment
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