Dolmar PB-7650.4, Original Instruction Manual

Page: 19 / 204

18 19
4. Cleaning the fuel filter
Clogged fuel filter may cause difficulty of start-up or failure of engine
speed increase.
Check the fuel filter regularly as follows:
(1) Remove the fuel tank cap (1), drain the fuel to empty the tank.
Check the tank inside for any foreign materials. If any, wipe
clean such materials.
(2) Pull out the fuel filter (2) with wire through the oil filling port.
(3) If the fuel filter surface is contaminated, clean it with gasoline.
The gasoline used for the cleaning must be disposed of
according to the method specified by each local authority.
Excessively contaminated filter must be replaced.
(4) After checking, cleaning or replacing, insert the fuel filter into the
fuel pipe and fix it by the hose clamp (3). Reset the fuel filter in
the fuel tank and tighten firmly the fuel tank cap.
Make sure there is no damage on the fuel tank.
5. Inspection of bolts, nuts and screws
Retighten loose bolts, nuts, etc.
Check for fuel and oil leakage.
Replace damaged parts with new ones for safety operation.
6. Cleaning of parts
Keep engine clean by wiping down with a cloth rag.
Keep the cylinder fins free of dust or dirt. Dust or dirt adhering to the fins
will cause seizure.
Blowing air is taken in from the air inlet vent and the air inlet net (1). When
airflow drops down during operation, stop engine and inspect the air
inlet vent and the air inlet net for any blockages. Clean it if necessary.
Check the air inlet net at the bottom. Remove the screw and the air inlet
net. Check if there are any blockages. Clean it if necessary.
Such a blockage may cause overheat and damage the engine.
WARNING:
Never use the blower without the net of the blower. Before each use,
check that the net is attached in place and is free from any damage.
7. Replacement of gaskets and packings
Replace gaskets and packings if the engine is disassembled.
Any maintenance of adjustment work that is not included and described in
this manual is only to be performed by Authorized Service Agent.
●
●
●
●
●
●
●
●
●
●
●
●
(2)
(3)
(1)
(1)
STORAGE
WARNING:
When draining the fuel, stop the engine and wait for the engine to cool down.
Failure to do so may cause burns or fire.
CAUTION:
When you store the machine for a long time, drain all fuel from the fuel tank and carburetor, and keep it at a dry and clean place.
Drain fuel from the fuel tank and carburetor according to the following procedure:
(1) Remove the fuel tank cap, and drain fuel completely.
If there is any foreign materials remaining in the fuel tank, remove it completely.
(2) Pull out the fuel filter from the refill port using a wire.
(3) Push the primer pump until fuel is drained from there, and drain fuel coming into the fuel tank.
(4) Reset the filter to the fuel tank, and securely tighten the fuel tank cap.
(5) Then, continue to operate the engine until it stops.
(6) Remove the spark plug, and drip several drops of engine oil through the spark plug hole.
(7) Gently pull the starter handle so that engine oil will spread over the engine, and attach the spark plug.
(8) Keep the machine with its handle upside.
(9) Keep the drained fuel in a special container in a well-ventilated shade.
●
–
●