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ENGINE MAINTENANCE
WARNING
Shut off the engine before performing any maintenance. To prevent
accidental start-up, disconnect the spark plug boot.
IMPORTANT: If engine must be tipped to transport equipment or to
inspect or remove grass, keep spark plug side of engine up. Transport-
ing or tipping engine spark plug down may cause smoking, hard
starting, spark plug fouling, or oil saturation of air cleaner.
Periodic inspection and adjustment of the engine is essential if high
level performance is to be maintained. Regular maintenance will also
ensure a long service life. The required service intervals and the kind
of maintenance to be performed are described in the table on the
previous page. Follow the hourly or calendar intervals, whichever occur
first. More frequent service is required when operating in adverse
conditions.
WARNING
If the engine has been running, the muffler will be very hot. Be careful
not to touch the muffler.
Servicing the Engine Oil
•
Check the oil level regularly.
•
Be sure correct oil level is maintained. Check the oil every five to
ten hours of operation, before starting the engine. See Checking
Oil Level in the Assembly section.
Only use high quality detergent oil rated with API service classification
SF, SG, SH, or SJ. Select the oil's SAE viscosity grade according to
the expected operating temperature. Refer to Gas & Oil in the As-
sembly section of this manual.
Oil Drain
IMPORTANT: Be sure to check engine on a level surface with the
engine stopped. Drain the oil while the engine is still warm to assure
rapid and complete draining.
For draining oil from the engine's crankcase of select model tractors, a
plastic oil drain sleeve is packed with this Operator's Manual. To drain
the oil, proceed as follows:
1.
Unscrew the oil fill cap and remove the dipstick from the oil fill
tube.
2.
Snap the small end of oil drain sleeve onto the oil sump. See Fig. 20.
3.
Remove drain plug and drain oil into a suitable container with a
capacity of no less than 64 oz.
4.
Tip the tractor slightly in the direction of the suitable container to
aid in fully draining all of the oil from the engine.
WARNING
Before tipping engine or equipment to drain oil, drain fuel from tank by
running engine until fuel tank is empty.
5.
Service the oil filter as instructed later in this section.
6.
Service the Oil Filter if desired, as per the instructions later in this
section.
7.
Reinstall the drain plug and tighten it securely, 12-14 Nm (106.2-
123.9 in-lb).
SERVICE AND MAINTENANCE
8.
Remove the oil drain sleeve from the oil sump. Return the dipstick
to the oil fill tube and screw the oil fill cap back into place.
9.
Refill the engine with the new motor oil. Refer to Gas & Oil in the
Assembly section of this manual for information regarding the
approved oil type.
IMPORTANT: Used motor oil may cause skin cancer if repeatedly
left in contact with the skin for prolonged periods. Although this is
unlikely unless you handle used oil on a daily basis, it is still advis-
able to thoroughly wash your hands with soap and water as soon as
possible after handling used oil.
NOTE: Please dispose of used motor oil in a manner that is compat-
ible with the environment. We suggest you take it in a sealed container
to your local service station for reclamation. Do not throw it in the
trash, pour it down a drain or on the ground.
Replacing The Oil Filter
This engine is equipped with a spin-on oil filter that should be replaced each
time an oil change is performed, every season or 50 hours. Refer to Fig. 21.
22
Figure 20
Oil Filter
Figure 21
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