Maintenance
30
Cleaning the Cooling Systems
Before each use, check and clean cooling screen.
Remove any build–up of grass, dirt or other debris
from the oil cooler screen and engine air intake.
Every 100 hours clean oil cooler, engine cylinder and
cylinder head cooling fins. Also clean around
carburetor, governor levers and linkage. This will
help insure adequate cooling to hydraulic pumps,
motors and engine and will reduce the possibility of
overheating and mechanical damage.
m–3801
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2
Figure 23
1.
Engine screen
2.
Oil cooler
Tire Pressure
Maintain the air pressure in the front and rear tires as
specified. Uneven tire pressure can cause uneven cut.
Check the pressure at the valve stem after every 50
operating hours or monthly, whichever occurs first
(Fig. 24). Check the tires when they are cold to get
the most accurate pressure reading.
Pressure: 13 psi (90 kPa) drive wheels and castor
wheels.
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m–1872
Figure 24
1.
Valve stem
Fuel Filter
Replace the fuel filter after every 200 operating hours
or yearly, whichever occurs first.
Replacing the Fuel Filter
Never install a dirty filter if it is removed from the
fuel line.
1.
Disengage the power take off (PTO), set the
parking brake, and turn the ignition key to
“OFF” to stop the engine. Remove the key.
2.
Close fuel shut–off valve on console.
3.
Squeeze the ends of the hose clamps together
and slide them away from the filter (Fig. 25).
4.
Remove the filter from the fuel lines.
5.
Install a new filter and move the hose clamps
close to the filter (Fig. 26).
6.
Open fuel shut-off valve on console.
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m–3217
Figure 25
1.
Filter
2.
Hose clamp
