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| Adjustments and Service |
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B |
| B |
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| B |
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| C |
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| Figure 20. Adjust PTO Clutch |
| B | A |
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Figure 19. | PTO Clutch Adjustment | WARNING |
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| To avoid serious injury, perform adjustments only with |
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| engine stopped, key removed and rider on level ground. |
PTO Clutch Adjustment
| nuts. |
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| Reproduction | ||||
Check the PTO clutch adjustment after the initial 25 hour break- |
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in period and then after every 250 hours of operation. Also | Blade Brake Check | ||||
perform the following procedure if the clutch is slipping | r will | ||||
not engage, or if a new clutch has been installed. |
| M wer blades and m wer drive belt should come to a complete | |||
1. | Remove key from ignition switch and disconnect spark plug | stop within f ve seconds after electric PTO switch is turned off. | |||
| wires to prevent the possibility of accidental s ar ing while | 1. With parking brake engaged, PTO disengaged and an | |||
| the PTO is being adjusted. |
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| operator in the seat, start the engine. | |
2. See Figure 19. Note the position of the 3 adjustment | 2. Have an assistant observe the mower drive belt through the | ||||
| windows (A) in the side of the brake plate and the nylock | opening between the frame and top of mower deck. | |||
| adjustment nuts (B). |
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| Engage the PTO and wait several seconds. Disengage the | |
3. | Insert | ||||
PTO and check the amount of time it takes for the mower | |||||
| through each window, positioning the gauge between the | drive belt to stop. | |||
| rotor face and the armature face as shown in Figu | 20. | 3. If the mower drive belt does not stop within five seconds, | ||
4. | Alternately tighten the adjustment nuts (B, Figure 19) until | ||||
perform the PTO Clutch Adjustment. If the belt still does | |||||
| the rotor face and armature face just contacts the gauge. | not stop within 5 seconds, see your dealer. | |||
5. Check the windows for an equal amount of tension when the gauge is inserted and removed, and make any neces- sary adjustments by tightening or loosening the adjustment
NOTE: The actual air gap between the rotor and armature may vary even after performing the adjustment procedure. This is due to dimensional variations on component parts, and is an acceptable condition.
6.Check the mower blade stopping time. The mower blades and mower drive belt should come to a complete stop with- in five seconds after the electric PTO switch is turned off.
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