Qualcast QG-PC 4645 Original Operating Instructions page 21

4. Insert the air filter. Fit the cover for the engine/
air filter. Make sure that the cover fits perfectly
when you do so. Tighten the fastening screw for
the cover.
Fuel filter
Warning: Never use the saw without a fuel
filter. After 100 hours in operation the fuel filter
should be cleaned or, in case of damage,
replaced. Be sure to empty the fuel tank before
changing the filter.
1. Remove the fuel tank cap.
2. Bend a piece of soft wire.
3. Reach into fuel tank opening and hook fuel
line. Carefully pull the fuel line toward the
opening until you can reach it with your fingers.
32
33
Note: Do not pull hose completely out of tank.
Helpline No. UK 0151 649 1500 / IRE 189 094 6244
4. Lift filter (A) out of tank (Fig. 33).
5. Pull off the filter with a twist and clean it; if the
filter is damaged, dispose of it.
6. Insert a new filter. Place one end of the filter
into the tank opening. Make sure that the
filter is seated in the lower corner of the tank.
If necessary, use a long screwdriver to move
the filter to its correct position, taking care not
to damage in the process.
7. Fill tank with fresh fuel/oil mixture. See Section
Fuel and Lubrication. Install fuel cap.
Spark plug (Fig. 32)
Warning: To ensure that the saw's engine
retains its power, the spark plug must be clean
and have the correct electrode gap (0.6 mm).
The spark plug must be cleaned or replaced
after every 20 hours of service.
1. Set the ignition switch to "Stop (0)".
2. Remove the top cover (A) by undoing the
cover fastening screw (B) on the cover. You
can then remove the filter (C) (Fig. 31).
3. Disconnect the ignition cable (D) from the
spark plug by pulling and twisting it
simultaneously (Fig. 32).
4. Remove the spark plug using a spark plug
wrench. DO NOT USE ANY OTHER TOOLS.
5. Clean the spark plug with a copper wire
brush or fit a new one.
Carburettor setting
The carburettor has been set to its perfect
adjustment at the factory. If it requires adjusting,
take the saw to your nearest authorised after-
sales service outlet.
19