Brake Maintenance; Adjusting The Parking Brake; Belt Maintenance; Inspecting The Belts - Toro 74251 Operator's Manual

7. Remove debris from the radiator core and
engine. Do not damage the radiator cooling
fins.
8. Inspect the seals on the engine cover and
replace them if needed.
9. Close the engine cover and tilt the seat back.
Changing the Engine Coolant
Change the engine coolant every year.
Contact an Authorized Service Dealer for changing
the coolant.

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 52).
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.
4. Collar on brake rod
5. 3/16–1/4 inch (5–7 mm)
6. Jam nut and yoke
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
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 54).
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 53).
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 53).
Important: Check the amount of twist
in the belt between the pulleys. Make sure
it is only what is specified in Figure 53.
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