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Belt Maintenance
Checking the Belts
Service Interval: Every 50 hours/Monthly (whichever
comes first)
Check the belts for squealing when the belt is rotating,
blades slipping when cutting grass, frayed belt edges,
burn marks and cracks are signs of a worn mower
belt. Replace the mower belt if any of these conditions
are evident.
Replacing the Mower Belt
For Rear-Discharge Decks
Note:
For the Flail Attachment, refer to the Operator's
Manual for the cutting unit.
1.
Park the machine on a level surface, disengage
the PTO, and engage the parking brake.
2.
Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3.
Remove the knobs and the belt cover on the
mower deck.
4.
Remove the idler pulley and the worn belt
(Figure
45).
5.
Install the new mower belt.
6.
Install the idler pulley.
7.
Engage the blade control (PTO) lever and check
the belt tension. Refer to
Belt Tension (page
Note:
The proper mower belt tension is 44 to
67 N (10 to 15 lb) with the belt deflected 13 mm
(1/2 inch) halfway between the pulleys
45).
Adjusting the Mower
35).
(Figure
1. Idler pulley
Adjusting the Mower Belt
Tension
For Rear-Discharge Decks
Note:
For the Flail Attachment, refer to the Operator's
Manual for the cutting unit.
Adjusting the Tension
Service Interval: After the first 8 hours
After the first 25 hours
Every 50 hours
Important:
When the belt tension or the brake
linkage is adjusted, the brake needs adjustment.
Important:
The belt must be tight enough to
not slip during heavy loads while cutting grass.
Overtensioning the belt reduces the spindle
bearing life, the belt life and the idler pulley life.
The belt must be tight enough so it does not slip
during heavy loads while cutting grass; overtensioning
reduces belt and spindle bearing life.
1.
Park the machine on a level surface, disengage
the PTO, and engage the parking brake.
2.
Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3.
Loosen the locknut on the turnbuckle
46).
4.
Rotate the turnbuckle toward the rear of the
mower deck to increase the tension on the belt.
35
Figure 45
2. Mower belt with 13 mm
(1/2 inch) deflection
(Figure
g007739
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