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EngineMaintenance
A listof key maintenance jobs required for good
performance by the mower is given below. Follow the
accompanying engine manual for detailed list and
instructions.
• Change engine oil after the first two operating
hours and every 25 operating hours thereafter.
Check the oil level before starting the engine every
time.
• Service foam filter in the air cleaner every 25 hours
of use and replace the paper filter component every
100 hours. You may have to service the air filter
more frequently ifyou are operating the mower
under extremely dusty conditions.
• Clean engine periodically. Remo_e dirt and debris
with a cloth or brush.
• Clean the spark plug and reset the gap to.030" at
least once a season or every 50 hours of operation.
Spark plug replacement is recommended at the
start of each season.
• Inspect muffler periodically, and replace if
necessary. Damaged mufflers or spark arresters
can create a fire hazard. Make sure to avoid muffler
and surrounding areas while the mower engine is
hot because temperature of these areas of the
engine may exceed 150 °F.
Lubrication(See Figure 19)
Wheels
• Lubricate the wheels and bearings, if so equipped,
at least once a season with light oil or engine oil.
Also, if the wheels are removed for any reason,
lubricate the surface of the axle bolt and the inner
surface of the wheel with light oil.
ChuteDeflector& RearDischargeDoor
• Lubricate the torsion spring and the pivot point on
each end of the chute deflector and the rear
discharge door using a light oil. This will prevent
rusting and ensure that the deflector, which is a
safety device, can always work properly.
Engine
• Follow the engine manual instructions and
recommended schedule for lubricating engine
components.
Transmission
• The transmission is pre4ubricated and sealed at
the factory and does not require lubrication on a
regular basis as part of maintenance. However, if
you disassemble the transmission for any reason,
refill with two ounces of Alvania grease (part # 737-
0168A) as part of reassembly.
PivotPoints
• Lubricate the pivot points on the blade control
handle, brake cable and the cutting height
adjustment lever at least once a season with light
oil. The blade control handle must operate freely in
both directions. The cutting height adjustment
levers should be able to move easily.
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Figure 19
SECTION7: SERVICINGYOURMOWER
BladeCare
Pedodically inspect the blade adapter and pulley for
cracks, especially ifyou strike a foreign object. Replace
when necessary.
WARNING: When removing the cutting
blade for sharpening or replacement, protect
hands by using heavy gloves or a thick rag to
grasp the cutting blade.
• Disconnect spark plug wire from spark plug.
• Turn mower on its side making sure that the air filter
and the carburetor are up.
To RemoveBlade
Remove the bolt and the bell washer that hold the
blade-pulley assembly to the engine crankshaft.
See Figure 20. Remove the assembly from the
crankshaft.
14
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