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Cooling System
Maintenance
Cleaning the Engine Screen
Service Interval: Before each use or daily—Clean
the engine air-intake screen.
To ensure proper cooling, ensure that the air-intake
screen, cooling fins, and other external surfaces of the
engine are kept clean at all times.
Use a dry brush to clean accumulated debris from the
air-intake screen and around the engine.
Important:
To prevent contaminating the fuel
system, do not use water to clean the engine.
Cleaning the
Engine-Cooling Fins and
Shrouds
Service Interval: Every 100 hours—Clean the
engine-cooling fins and shrouds.
1.
Park the machine on a level surface, shut off the
engine, and remove the key from the ignition
switch.
2.
Remove the air-intake screen and cooling
shrouds.
3.
Clean the debris and grass from the engine
parts.
4.
Install the air-intake screen and cooling shrouds.
Belt Maintenance
Inspecting the Belts
Service Interval: Every 25 hours—Check the belts
for wear/cracks.
Check the belts for cracks, frayed edges, burn marks,
or any other damage. Replace damaged belts.
Replacing the Transmission
Belt
1.
Park the machine on a level surface, disengage
the blade, and engage the parking brake.
2.
Turn the ignition key to the O
the key, and disconnect the spark plug wire from
the spark plug.
3.
Use lifting equipment to raise the machine and
support it with jack stands.
4.
Remove the extension spring from the tension
arm
(Figure
31).
Transmission not shown
1. Extension spring
2. Clutch pulley
3. Transmission pulley
5.
Remove the transmission belt from the pulleys.
6.
Wrap the new transmission belt around the
clutch, transmission, and tension pulleys
31).
7.
Install the extension spring onto the tension arm.
24
position, remove
FF
Figure 31
4. Tension pulley
5. Belt
6. Tension arm
g188917
(Figure
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