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Figure 47
1. Engine air intake
Cleaning the Cooling System
Check and clean cooling fins and engine shrouds
every 100 hours or yearly, which ever comes first.
1. Disengage the PTO 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 blower housing and engine
shrouds (Figure 47).
4. Clean the debris and grass from the engine
parts.
5. Install the blower housing and engine shrouds.
Brake Maintenance
Adjusting the Parking Brake
Check the parking brake for proper adjustment.
1. Disengage the brake lever (lever down).
2. Measure the length of the spring; the
measurement should be 2-3/4 inch (74 mm)
between the washers (Figure 48).
2. Blower housing
Figure 48
1. Brake lever
2. Spring, 2-3/4 inch (74 mm) 6. Jam nut and yoke
3. Adjusting nuts
4. Collar on brake rod
3. If an adjustment is necessary, do the following:
A. Loosen the jam nut below the spring and
tighten the nut directly below the yoke
(Figure 48).
B. Turn the nut until you obtain the correct
measurement.
C. Tighten the 2 nuts together and repeat on
the opposite side of the machine.
4. Turn the nuts clockwise to shorten the spring
length; counterclockwise to lengthen the
spring.
5. Engage the parking brake, with the lever up.
6. Measure the distance between the trunnion
roller and the collar on the brake rod. The
measurement should be 3/16 to 1/4 inch (5
to 7 mm) (Figure 48).
7. If an adjustment is necessary, do the following:
A. Loosen the jam nut directly below the yoke.
B. Turn the bottom adjusting nuts until
the correct measurement is obtained
(Figure 48).
C. Tighten the jam nut at the yoke.
Belt Maintenance
Inspecting the Belts
Inspect all belts every 100 hours.
38
5. 3/16 to 1/4 inch (5 to
7 mm)
7. Trunnion
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