CHANGING THE ENGINE OIL AND FILTER
RECOMMENDED OIL TYPE:
Using the proper type and weight of oil in the crankcase is extremely
important. Check the oil before each use and change the oil regularly
(see Figures 1-1 through 1-5). Failure to use the correct oil, or using
dirty oil, can cause premature engine wear and failure.
Use only high quality detergent oil rated with an API service
classification SN or higher. Do NOT use oil designated "for diesel
engines only" (example: CD).
The recommended oil weights include the following:
•During summer months: SAE 30. An acceptable substitute is
SAE 10W-30. After first oil change, synthetic oil is acceptable.
•During winter months: SAE 5W-30 or synthetic 5W-30. DO NOT USE
SAE 10W-40.
After first oil change, synthetic oil is acceptable.
SAE 30, 10W-30
5W-30
Synthetic 5W-30
*
Any attempt to crank or start the engine before it has been
properly serviced with the recommended oil may result in
an engine failure.
OIL CHANGE PROCEDURE:
See "Section 14: Specifications" for crankcase oil capacities. Use no
special additives. Make sure that the unit is level when filling with oil.
DO NOT OVERFILL.
The engine is equipped with an oil filter. Change the oil and filter after
the first eight (8) hours of operation. Change the oil and oil filter every
100 hours thereafter. If you are using this engine under dirty or dusty
conditions, or in extremely hot weather, change the oil more often.
Use the following instructions to change the oil while the engine is
still warm:
1. Clean the area around the oil drain plug, remove the plug and drain
the oil completely into a suitable container (Figure 8-3).
DRAIN
Figure 8-3. Oil Drain Location
ROTATE
OIL FILTER
COUNTER-
CLOCKWISE
TO LOOSEN
Figure 8-4. Removal of Oil Filter
2. When the oil is drained, install and tighten the oil drain plug.
3. When changing the oil filter, use the following instructions:
a. Locate oil filter (Figure 8-4).
b. Place a suitable container beneath the oil filter and turn the
filter counterclockwise to remove the filter.
c. Coat the gasket of a new filter with engine oil. Turn the new
filter clockwise until the gasket contacts the filter adapter, then
tighten an additional 3/4 turn.
4. Remove the oil fill cap and insert a clean funnel into the oil fill
opening. Fill the crankcase with the recommended oil until the oil
level is at the full point on the dipstick.
5. When the crankcase is filled to the proper level, install the oil fill
cap. Start engine to fill oil filter, recheck/correct oil level.
SECTION 8: LUBRICATION SYSTEM
8-2
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