CAUTION: Be careful not to
let dirt enter the engine when you
change the oil.
5. Install the drain tube (E) onto the oil drain valve.
6. Turn the valve counterclockwise with a 10 mm
wrench to open the oil drain valve (F).
7. Turn the drain valve clockwise to close it (G)
when the oil is drained.
Note: Use a 10 mm wrench to apply a small
quantity of torque to keep the drain valve closed.
Do not tighten too firmly.
8. Remove the drain tube (E) and keep it.
9. Fill the engine with new oil through the oil fill
dipstick tube.
Note:
Put oil into the engine slowly. Do
not fill the engine with too much oil. For the
approximate capacity, see
Technical data on
page 35
.
10. Use the gauge on the oil fill dipstick to do a
check of the oil level.
a) Put the dipstick into the tube and let the oil fill
cap touch the top of the tube.
b) Do not tighten the cap onto the tube when
you do an oil level check.
c) Make sure the oil is at the “FULL” line on the
dipstick.
d) Tighten the cap onto the tube tightly when
you complete the check.
To replace the engine oil filter
WARNING:
Use protective gloves.
If you spill engine oil on your body, clean
with soap and water.
1. Drain the engine oil from the oil tank. Refer to
To
change the engine oil on page 26
.
2. Turn the engine oil filter counterclockwise to
remove it.
3. Lightly lubricate the rubber seal on the new oil
filter with new engine oil.
4. To install the new oil filter, turn it clockwise until
the rubber seal fits correctly, then tighten a half
turn more.
5. Fill the oil tank with new engine oil. Refer to
To
change the engine oil on page 26
.
6. Start the engine and let it operate at idle speed
for 3 minutes.
7. Stop the engine and make sure that there is no
oil leakage from the oil filter.
Note: If the there is oil leakage, tighten the oil
filter again.
8. Fill the oil tank with more engine oil to replace
the engine oil that the new oil filter has absorbed.
To clean the air filter
The engine will not run satisfactorily with a dirty air
filter. Clean the air filter more frequently in dusty
conditions.
To clean the air screen
Note: The air screen must be kept free of dirt to
prevent engine damage caused by overheating.
• Clean the air screen with a wire brush or
compressed air to remove dirt.
To do maintenance on the engine cooling
system
Note:
A blocked grass screen, dirty or full cooling
fins, and/or removed blower housing, and so on, can
make the engine too hot and cause engine damage.
• Make sure that the grass screen, the cooling fins,
and other external surfaces of the engine are
clean at all times.
• After each interval of 100 hours of operation
(more often in extremely dusty and dirty
conditions), remove the blower housing and
other parts of the engine cooling system.
Clean the cooling fins and external surfaces as
necessary. Make sure that the engine cooling
system parts are installed correctly.
To do maintenance on the muffler
Corrosion on the muffler and spark arrester can
cause fire and/or damage.
• Examine the muffler and spark arrester (if the
product has one) and replace if necessary.
To replace the spark plugs
The spark plug type and clearance (gap setting) are
shown in
Technical data on page 35
.
2285 - 001 - 17.10.2023
27
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