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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
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
7).
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
7).
1. Idler pulley
Adjusting the Mower
11).
(Figure
Figure 7
2. Mower belt with 13 mm
(1/2 inch) deflection
Adjusting the Mower Belt
Tension
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
4.
Rotate the turnbuckle toward the rear of the
mower deck to increase the tension on the belt.
Rotate the turnbuckle toward the front of the
mower deck to decrease the tension on the belt
(Figure
8).
Note:
Ensure that the eyebolt threads on both
ends of the turnbuckle are engaged a minimum
of 8 mm (5/16 inch).
g007739
1. Locknut
2. Turnbuckle
3. Front stop
11
(Figure
Figure 8
4. Assist arm
5. 13 mm (1/2 inch) deflection
here
8).
g007740
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