MAINTENANCE
ENGINE
HOW TO CHECK THE OIL
NOTE: Do not check the level of the oil while the engine
runs,
1.
Make sure the unit is level.
2.
Clean the area around the dipstick (Figure 17). Remove the
dipstick. Wipe the oil from the dipstick.
3.
Insert the dipstick into the oil fill tube. Turn the dipstick
clockwise until it is tight. Remove the dipstick. Check the oil
level on the dipstick. The oil level must reach the FULL
mark on the dipstick.
4.
If necessary, add oil until the oil reaches the FULL mark on
the dipstick. The quantity of oil needed from ADD to FULL is
shown on the dipstick. Do not add too much oil.
Fuel Cap
Dipstick
Engine Shroud
Figure 17
HOW TO CHANGE
THE OIL
NOTE: Do not drain the oil from a cold engine. Before you
drain the oil, let the engine run for several minutes. Make
sure you do not get oil on the belts.
1.
2.
3.
Loosen
the oil fill cap to
serve as an air vent.
Turn oil drain valve counter-
clockwise and pull to release
the oil drain
valve.
See
Figure 18.
Open the oil drain cap.
NOTE:
To make
the job
cleaner,
use
an optional
hose to drain the oil.
Oil Drain Valve
Oil Drain Cap
\
Optional Hose
4.
After draining the oil, close
the oil drain cap.
5.
To lock the oil drain valve,
push and turn the oil drain
valve clockwise.
Container
Figure 18
6.
Only use a high quality detergent oil rated with API service
classification
SG. Select the oil's SAE viscosity grade ac-
cording to the expected operating temperature using the
temperature chart below:
Required
SAE viscosity
grades
4
F 20
?
20 3240
e0
80
1p0
,
i
C 30
20
10
0
10
20
30
4_0
TEMPERATURE
RANGE ANTICIPATED
BEFORE NEXT OIL CHANGE
NOTE: Although multi-viscosity
oils (5W30, 10W30, etc.)
improve starting in cold weather, these multi-viscosity
oils
will result in increased oil consumption
when used above
320 F. Check the engine oil level more frequently to avoid
possible engine damage from running low on oil.
7.
Remove oil dipstick from oil fill spout. Make sure that rim of
oil fill spout is clean.
8.
Slowly pour 15 oz. of the oil down the oil fill spout into the
engine.
9.
Wait one minute to allow the oil to settle. Insert and tighten
the dipstick, then remove it to check the oil level.
10. Continue adding small amounts of oil and rechecking the
dipstick until it reads FULL. DO NOT overfill, or the engine
will smoke on startup.
11. Always be sure to retighten oil dipstick before starting en-
gine.
HOW TO CLEAN THE COOLING
SYSTEM
The engine is air cooled. The air that cools the engine enters
through the air screen on top of the engine. Clean the engine
every 100 hours or every year as follows.
1.
Remove any grass, dirt or debris from the air screen with a
cloth or brush.
2.
Inspect the edge of the engine shroud
for grass or debris.
Remove any grass or debris visible at the bottom edge of the
engine shroud.
F-020433M
HOW TO CHECK THE MUFFLER
15
Check the muffler every 50 hours. Make sure the muffler is cor-
rectly mounted and is not loose. If the muffler is worn or burnt,
replace with a new muffler. A worn muffler is a fire hazard and
can damage the engine.
If you mount a spark arrester to the muffler, also check the spark
arrester when you check the muffler. If the spark arrester is worn
or damaged, replace it with a new spark arrester. See your near-
est Sears service center for a spark arrester.