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Figure 52
1. Brake lever
2. Spring (2-3/4 inches/70
mm)
3. Adjusting nuts
3. If adjustment is necessary, loosen the jam nut
below the spring and tighten the nut directly
below the yoke (Figure 52). Turn the nut until
the correct measurement is obtained. Tighten
the two nuts together and repeat on opposite
side of unit.
4. Turn nuts clockwise to shorten spring length
and turn counter-clockwise to lengthen the
spring.
5. Engage parking brake, lever up.
6. Measure the distance between the trunnion
roller and the collar on brake rod.
The measurement should be 3/16-1/4 inch
(5-7 mm) (Figure 52).
7. If adjustment is necessary, loosen the jam nut
directly below the yoke. Turn the bottom rod
until the correct measurement is obtained
(Figure 52). Tighten jam nut at yoke
Belt Maintenance
Inspecting the Belts
Inspect all belts every 100 hours.
Check belts for cracks, frayed edges, burn marks
or any other damage. Replace damaged belts.
Replacing the Mower Belt
Squealing when the belt is rotating, blades slipping
when cutting grass, frayed belt edges, burn marks
4. Collar on brake rod
5. 3/16–1/4 inch (5–7 mm)
6. Jam nut and yoke
and cracks are signs of a worn mower belt. Replace
the mower belt if any of these conditions are
evident.
1. Disengage the PTO, move the motion control
levers to the neutral locked position, and set
the parking brake.
2. Stop the engine, remove the key, and wait for
all moving parts to stop before leaving the
operating position.
3. Remove the bolts holding the belt covers in
place and remove the belt covers.
4. Loosen the nut securing the idler plate and
move the idler plate to relieve the belt tension
on the idler pulley (Figure 53).
5. Remove the nut, washer and belt guide from
the rear leftside pulley.
6. Remove the mower belt from the belt guides
and remove the belt (Figure 53).
7. Install the new mower belt around the mower
spindle pulleys, mower idler pulley, into the
belt guides, into rear idler arm assembly, and
the clutch (Figure 53).
8. Install the belt guide with a washer and nut
onto the rear leftside pulley.
Note: Check the amount of twist in the belt
between the pulleys. Ensure it is only what is
specified in Figure 53.
42
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