Maintenance
61
Compression Spring Adjustment
1. Raise deck lift lever to the transport position,
(Fig. 49).
2. Springs are compressed so the distance between
the two large washers should be 10-1/4”
(260 mm) (Fig. 50).
3. Adjust by turning nut in front of each spring
(Fig. 50). Clockwise will shorten spring;
counter–clockwise will lengthen spring.
Belt
Inspection
Inspect all belts every 100 hours.
1. Check belts for cracks, frayed edges, burn marks
or any other damage. Replace damaged belts.
Clean
Under Deck
Remove grass build up under deck daily.
1. Position mower on a flat surface. Stop the
engine, set the parking brake, remove the key
and disconnect the spark plug wire(s) from the
spark plug(s).
2. Raise deck to the transport position.
3. Lift the front of unit and support unit using jack
stands.
POTENTIAL HAZARD
• Mechanical or hydraulic jacks may not
support machine
WHAT CAN HAPPEN
• Weight of machine can cause hydraulic
jacks to fail and cause an injury.
HOW TO AV
OID THE HAZARD
• Use jack stands when supporting machine.
• Do not use hydraulic jacks.
Replacing
the Deck Belt
Squealing when the belt is rotating, blades slipping
when cutting grass, frayed belt edges, burn marks and
cracks are signs of a worn deck belt. Replace the deck
belt if any of these conditions are evident.
1. Stop the engine, set the parking brake, remove
the key and disconnect the spark plug wire(s)
from the spark plug(s).
2. Remove the PTO drive belt. Refer to Replacing
the PTO Drive Belt, on page 62.
3. Remove idler spring from idler arm, then remove
the worn deck belt (Fig. 51).
4. Install the new deck belt around the spindle
pulleys, belt guide, the idler pulley, and in the
lower groove of the center spindle pulley
(Fig. 51).
5. Using a socket and torque wrench, rotate the
idler adjusting nut until torque is 25–30 ft.–lb.
(34–41 Nm). Tighten two nuts.
1
m–3890
3
2
4
Figure 51
T
op V
iew
1. Deck
Belt
2.
Idler Arm
3.
Belt guide
4.
Idler Spring
6. Reinstall the PTO drive belt. Refer to Replacing
the PTO Drive Belt, page 62.
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