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Cooling System
Maintenance
Cleaning the Engine Screen
Service Interval: Before each use or daily
Before each use remove any build-up of grass, dirt or
other debris from the engine screen. This will help insure
adequate cooling and correct engine speed and will reduce
the possibility of overheating and mechanical damage to the
engine (Figure 54).
Cleaning the Engine Cooling
Fins and Shrouds
Service Interval: Every 100 hours/Yearly (whichever 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 air intake screen, recoil starter and fan
housing (Figure 54).
4. Clean the debris and grass from the engine parts.
5. Install air intake screen, recoil starter and fan housing
(Figure 54).
Figure 54
1. Engine guard
2. Engine air intake screen
3. Bolt
4. Fan housing
5. Screw
Belt Maintenance
Inspecting the Belts
Service Interval: Every 50 hours
Check the belts for 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.
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.
Important: The fasteners on the covers of this machine
are designed to remain on the cover after removal.
Loosen all of the fasteners on each cover a few turns so
that the cover is loose but still attached, then go back
and loosen them until the cover comes free. This will
prevent you from accidentally stripping the bolts free
of the retainers.
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. Lower the mower to the 3 inch (76mm) height of cut.
4. Remove the belt covers and the bolts attached to them
(Figure 55).
1
1. Loosen the bolt
5. Use a ratchet in the square hole in the idler arm to
remove tension on the idler spring (Figure 56).
6. Remove the belt from the mower deck pulleys.
7. Remove the belt guide on the spring loaded idler arm
shown in Figure 56.
8. Remove the existing belt.
9. Install the new belt around the mower pulleys and the
clutch pulley under the engine (Figure 56).
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2
Figure 55
2. Remove belt cover
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