Craftsman 987.799601 - Manual (Page 28)

CUSTOMER RESPONSIBILITIES
To Change the Oil
1. Change the oil while engine is still warm from recent
operation-
Stop engine and make sure that all
moving parts have come to a complete stop,
Disconnect sparkplug wire and secure it away from
spark plug.
2. The oil drain plug {B in Figure 27 on Page 27) is
located at the bottom of the dipstick tube.
3. Prop up the wheels on the opposite side of the _
machine so that the oil drain plug fs at the lowest point
on the engine
4. To prevent oil from spilling on the machine, make a
V'Shaped drain trough out of aluminum foil or stiff
cardboard and place the trough beneath the drain plug.,
5. Remove the dipstick (A, Figure 27) to vent the
crankcase and speed up draining time
6. Remove the oil drain plug (B. Figure 27). After the oil
has drained, install the oil drain plug and tighten
securely-
7. Refill the engine crankcase with recommended oil
described below After adding oii, securely replace the
dipstick (A) and dean up any spilled oil.
colder-®-
32°F- -9>~ warmer
5W30 SAE 30
SERVICE THE AIR FILTER
The engine !s equipped with a paper element air filter.
See Figure 28.
IMPORTANT:
• NEVER RUN ENGINE WITHOUT COMPLETE AIR
FILTER ASSEMBLY INSTALLED.
• REPLACE FILTER ONCE A YEAR, OR MORE OFTEN
IF USED IN EXTREMELY DUSTY OR DIRTY
CONDITIONS
• DO NOT ATTEMPT TO CLEAN OR OIL FILTER.
• REPLACEMENT FILTERS ARE AVAILABLE FROM
ANY SEARS ROEBUCK AND CO. (OR SEARS
CANADA, INC.) SERVICE CENTER.
To Replace Air Filter
1. Stop engine and make sure that all moving parts
- have come to a complete stop. Disconnect spark
plug wire and secure it away from spark plug.
2. Turn cover to the left (counterclockwise) and remove
cover and filter from flange Discard filter. See Figure 28.
3. Clean cover and flange thoroughly.
4. Position cover and filter against flange with lab on
cover inserted into lower left corner of slot in flange.
5. Push cover firmly against flange and turn it to the
right (clockwise) as far as it will go. Be sure retainers
are locked around flange
Figure 28: Air cleaner assembly.
CLEAN COOLING SYSTEM
To ensure adequate cooling of the engine, air must
circulate freely through the air Intake screen
(A in Figure
29) and over the cooiing fins (B).,
After every 5 operating hours, clean the air intake screen
and the cooling fins to remove any chaff, dirt and debris.
Figure 29: Air intake screen and cooling fins.
INSPECT THE ENGINE SPARK ARRESTER
(IF SO EQUIPPED)
If the muffler on the engine is equipped with a spark
arrester screen assembly, remove the assembly every
50 hours of operation for cleaning and inspection
Replace a damaged assembly.
SERVICE THE SPARK PLUG
Check the spark plug yearly or every 100 operating
hours. Replace the spark plug if the electrodes (Figure
30 on Page 29) are pitted or burned, or if the porcelain is
cracked. Use a Champion J-19LM, Autoiite 458, or
equivalent In Canada, replace with a resistor spark
plug.
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