4. Put the dipstick fully into the oil tank to give a correct
picture of the oil level.
5. Remove the dipstick.
6. Examine the oil level on the dipstick.
7. If the oil level is low, fill with engine oil and do a
check of the oil level again.
To change the engine oil
WARNING: Engine oil is very hot directly
after the engine is stopped. 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. Operate the product until the fuel tank is empty.
2. Remove the ignition cable from the spark plug.
3. Remove the oil tank cap.
4. Put a container below the product to collect the
engine oil in.
5. Tilt the product to drain the engine oil from the oil
tank.
6. Fill with new engine oil of the type recommended in
Technical data on page 12 .
7. Do a check of the oil level. See
oil level on page 10 .
To clean the air filter on M51-125M
1. Remove the air filter cover (1).
2. Remove the foam plastic filter (2).(Fig. 29 )
3. Clean the foam plastic filter with soap and water.
4. Flush the foam plastic filter in clean water.
5. Squeeze the water from the foam plastic filter and let
it dry.
CAUTION: Do not use compressed air. It
can cause damage to the foam plastic
filter.
6. Lubricate the foam plastic filter with engine oil.
Transportation and storage
•
For storage and transportation of the product and
fuel, make sure that there are no leaks or fumes.
Sparks or open flames, for example from electrical
devices or boilers, can start a fire.
•
Always use approved containers for storage and
transportation of fuel.
•
Empty the fuel tank before you put the product in
storage for a long period of time. Discard the fuel at
an applicable disposal location
•
Safely attach the product during transportation to
prevent damage and accidents.
389 - 001 - 17.10.2017
To do a check of the
Transportation, storage and disposal
7. Press a clean cloth against the foam plastic filter to
remove unwanted oil.
8. Put the foam plastic filter back. Make sure that the
foam plastic filter fully seals against the air filter
holder.
9. Put the air filter cover back.
To replace the air filter on M51-120M
CLASSIC
1. Remove the air filter cover.
2. Remove the air filter cartridge.
3. Replace with a new air filter cartridge.
4. Put the air filter cover back.(Fig. 30 )
To examine the spark plug
CAUTION: Always use the recommended
spark plug type. Incorrect spark plug type
can cause damage to the product.
•
Examine the spark plug if the engine is low on
power, is not easy to start or does not operate
correctly at idle speed.
•
To decrease the risk of unwanted material on the
spark plug electrodes, obey these instructions:
a) Make sure that the idle speed is correctly
adjusted.
b) Make sure that the fuel mixture is correct.
c) Make sure that the air filter is clean.
•
If the spark plug is dirty, clean it and make sure that
the electrode gap is correct, see
page 12 .(Fig. 31 )
•
Replace the spark plug if it is necessary.
To examine the fuel system
•
Examine the fuel tank cap and the seal for the fuel
tank cap to make sure that there are no damages.
•
Examine the fuel hose to make sure that there are
no leaks. If the fuel hose is damaged, let a service
agent replace it.
•
Keep the product in a locked area to prevent access
for children or persons that are not approved.
•
Keep the product in a dry and frost free area.
Disposal
•
Obey the local recycling requirements and applicable
regulations.
•
Discard all chemicals, such as engine oil or fuel, at a
service center or at an applicable disposal location.
•
When the product is no longer in use, send it to a
McCulloch dealer or discard it at a recycling location.
Technical data on
11