To replace the engine oil
If the engine is cold, start the engine for 1–2 minutes
before you drain the engine oil. This makes the engine
oil warm and easier to drain.
WARNING: Engine oil is very hot directly
after the engine stops. Let the engine
become cool before you drain the engine oil.
If you spill engine oil on your skin, clean with
soap and water.
1. Put a container below the drain plug for the engine
oil.
2. Remove the oil tank cap and dipstick (A), the oil
drain plug (B) and the washer (C).
B
A
C
3. Let the oil run out into the container.
4. Install the washer and the oil drain plug. Tighten the
oil drain plug.
5. Fill to the edge of the hole with new engine oil. Refer
to
Technical data on page 17
or the engine manual
for the correct type of oil.
6. Tighten the oil tank cap.
7. Do a check of the engine oil level.
To clean or replace the air filter
WARNING: Use approved respiratory
protection when you clean or replace the air
filter. Discard used air filters correctly. The
dust in the air filter is dangerous to your
health.
WARNING: Do not clean the air filter with
compressed air. This causes damage to the
air filter and the risk increases that you
breathe the dangerous dust.
1. Turn the knob on the air filter cover and remove the
air filter cover (A).
2. Remove the paper filter element (B) and the foam
filter element (C).
A
B
C
D
Note: Some models only have a foam filter element
and not a paper filter element.
3. Clean the air filter housing with a brush.
4. Examine the air filter elements for damage.
CAUTION: Always replace a damaged
air filter, or the dust will go into the
engine and cause engine damage.
5. Tap the paper filter element against a hard surface
or use a vacuum cleaner to remove the particles.
CAUTION: Do not let the nozzle of the
vacuum cleaner touch the surface of the
paper filter element. Keep a small
distance. The sensitive surface of the
paper filter element becomes damaged if
objects touch it.
6. Clean the foam filter element with a solution of soap
and water.
7. Flush the foam filter element in clean water.
8. Compress the foam filter element to remove the
water and let the foam filter element dry fully.
9. Lubricate the foam filter element with engine oil.
10. Push a clean cloth against the foam filter element to
remove unwanted oil.
11. Install the air filter in the opposite sequence. Make
sure that the gasket (D) is in the correct position
below the air filter.
To clean the sediment cup
1. Move the fuel valve to the OFF position (A).
12
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Summary of Contents for HH 163MP
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