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Drive System
Maintenance
Checking the Tire Pressure
Service Interval: Every 50 hours/Monthly (whichever
comes first)—Check the tire pressure
Check the pressure at the valve stem (Figure 33).
Maintain the air pressure in the rear tires at 12-14 psi
(83-97 kPa). Uneven tire pressure can cause an uneven
cut.
Note: The front tires are semi-pneumatic tires and do
not require air pressure maintenance.
Figure 33
Cooling System
Maintenance
Cleaning the Air Intake Screen
Before each use remove any build-up of grass, dirt
or other debris from the cylinder and cylinder head
cooling fins, air intake screen on flywheel end, and
carburetor-governor levers and linkage. This will help
insure adequate cooling and correct engine speed and
will reduce the possibility of overheating and mechanical
damage to the engine.
Cleaning the Cooling System
Service Interval: Every 100 hours
Clean the air intake screen from grass and debris before
each use.
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 34).
4. Clean the debris and grass from the engine parts.
5. Install air intake screen, recoil starter and fan housing
(Figure 34).
1. Air intake screen
2. Fan housing
3. Recoil starter
30
Figure 34
4. Bolt
5. Nut
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