Regular Maintenance
Hydraulic Pump Drive Belt Replacement
1. Park the unit on a smooth, level surface such as a concrete floor. Disengage the PTO, engage the parking brake, turn off the engine, and remove the ignition key.
2. Remove the PTO drive belt (see PTO DRIVE | C | |
BELT REPLACEMENT for removal instructions). | ||
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3.Lower the mower deck to its lowest cutting position.
4. Disconnect the PTO clutch wire harness.
5. Loosen and remove the crankshaft bolt (A, Figure 50) and the PTO clutch (B) from the engine crankshaft.
6. Loosen the inner jam nut (A, Figure 51) on the idler arm stabilizer.
7. Loosen the nut (B) on the spring anchor eyebolt |
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(C) to release the majority of the belt tension. Use | B |
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caution and remove the nut to completely release |
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the tension. |
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8. Remove the old belt and replace it with a new one. |
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| Reproduction |
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Make sure that the belt is properly seated in the | for |
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chevron of the pump drive sprockets (D) and the |
| Figu e 50. Removi g the PTO Clutch |
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crankshaft sprocket (E). See Figure 51 for proper | A. C ankshaft B | lt |
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belt routing. |
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| B. PTO Clu ch |
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9. Reinstall the spring anchor eyebolt into the anchor | C. PTO Clu ch M unting Tab |
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tab (F) and loosely fasten the nut. Adjust he |
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anchor eyebolt until a measurement f 5” (12,7 |
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cm) is achieved on the spring coils (G). Tighten |
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the nuts. |
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| 5” |
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10. Tighten the nuts on the idler arm stabilizer so that | H | (12,7 cm) |
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the idler arm is locked into place. | Not |
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11. Reinstall the PTO clutch (B, Figure 50) on the |
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engine crankshaft so that the slot in the PTO |
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clutch lines up with the PTO clutch mounting |
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tab (C) and secure with the crankshaft bolt (A). |
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Tighten the crankshaft bolt to 65 ft. lbs (88 Nm). |
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NOTE: Make sure that the slot in the PTO clutch lines |
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up with the PTO clutch mounting tab underneath the |
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engine deck. |
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11. Reconnect the PTO clutch wire harness and wire |
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tie the harness out of the way of the PTO clutch |
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and the pump drive belt. |
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12. Reinstall the PTO drive belt. |
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| Figure 51. Pump Drive Belt Routing |
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| A. Inner Jam Nut |
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| B. Nut |
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| C. Spring Anchor Eyebolt |
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| D. Pump Drive Sprockets |
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| E. Crankshaft Sprocket |
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| F. Anchor Tab |
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| G. Spring |
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| H. Idler Arm |
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