Oregon Qualcast PC40 Operation And Maintenance Manual page 17

Maintenance
Maintenance instructions
CARBURETTOR ADJUSTMENT
The carburettor was preset at the factory for optimum performance. If further adjustments are
necessary, please take your unit to the nearest quali ed service technician.
STORING A CHAINSAW
CAUTION: Never store a chainsaw for longer than 30 days without performing the following
procedures.
Storing a chainsaw for longer than 30 days requires storage maintenance. Unless the storage
instructions are followed, fuel remaining in the carburettor will evaporate, leaving gum-like deposits.
This could lead to dif cult starting and result in costly repairs.
1. Remove the fuel tank cap slowly to release any pressure in the tank. Carefully drain the fuel tank.
2. Start the engine and let it run until the unit stops to remove fuel from carburettor.
3. Allow the engine to cool (approx. 5 minutes).
4. Using a spark plug wrench, remove the spark plug.
5. Pour 1 teaspoon of clean 2-stroke oil into the combustion chamber. Pull starter rope slowly several
times to coat internal components. Replace spark plug. (Fig. 19)
NOTE: Store the unit in a dry place and away from possible sources of ignition such as a furnace, gas
hot water heater, gas dryer, etc.
Fig. 19
REMOVING A UNIT FROM STORAGE
1. Remove spark plug.
2. Pull starter rope briskly to clear excess oil from combustion chamber.
3. Clean and gap spark plug or install a new spark plug with proper gap.
4. Prepare unit for operation.
5. Fill fuel tank with proper fuel / oil mixture. See FUEL AND LUBRICATION Section.
GUIDE BAR MAINTENANCE
Frequent lubrication of the guide bar (railed bar which supports and carries the saw chain) sprocket
tip is required. Proper maintenance of the guide bar, as explained in this section, is essential to keep
your saw in good working condition.
SPROCKET TIP LUBRICATION:
CAUTION: The sprocket tip on your new saw has been pre-lubricated at the factory. Failure to
lubricate the guide bar sprocket tip as explained below will result in poor performance and seizure,
voiding the manufacturer's warranty.
Storing a chainsaw for longer than 30 days requires storage maintenance. Unless the storage
instructions are followed, fuel remaining in the carburettor will evaporate, leaving gum-like deposits.
This could lead to dif cult starting and result in costly repairs.
Lubrication of the sprocket tip is recommended after 10 hours of use or once a week, which ever
occurs rst. Always thoroughly clean guide bar sprocket tip before lubrication.
TOOLS FOR LUBRICATION:
The Lube Gun (optional) is recommended for applying grease to the guide bar sprocket tip. The Lube
Gun is equipped with a needle nose tip which is necessary for the ef cient application of grease to the
sprocket tip.
Customer Helpline 0844 801 3652 17