Brake Maintenance; Adjusting The Parking Brake; Belt Maintenance; Inspecting The Belts - Toro 74255 Operator's Manual

governor levers and linkage. This will make sure
adequate cooling to hydraulic pumps, motors
and engine and will reduce the possibility of
overheating and mechanical damage.
1. Remove the panels from the engine shroud.
2. Clean the engine cooling fins.
3. Install the panels onto the engine shroud.
Figure 53
1. Panel
2. Engine shroud

Brake Maintenance

Adjusting the Parking Brake

Check the parking brake for proper adjustment.
1. Disengage brake lever (lever down).
2. Measure the length of the spring.
The measurement should be 2-3/4 inch (70
mm) between washers (Figure 54).
Figure 54
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
3. Screws
4. Collar on brake rod
5. 3/16–1/4 inch (5–7 mm)
6. Jam nut and yoke
below the yoke (Figure 54). 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 54).
7. If adjustment is necessary, loosen the jam nut
directly below the yoke. Turn the bottom rod
until the correct measurement is obtained
(Figure 54). 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
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 belt covers (Figure 56).
4. Loosen the nut securing the idler plate and
move the idler plate to relieve the belt tension
on the idler pulley, then remove the worn
mower belt (Figure 55).
5. 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 55).
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