15
MAINTAINANCE AND CLEANING
In order to maintain your chain saw in proper working order, perform the maintenance and
checking operations described in this manual at regular intervals. Leave all maintenance other
than the items listed in the Owner’s Manual to your competent servicing dealer. Repairs and
servicing must only be performed by authorised dealers and service agents.
Before cleaning, inspecting or repairing the chain saw, make sure that engine has stopped and
is cool. Switch off and disconnect the spark plug to prevent accidental starting during
maintenance and cleaning.
WARNING: The metal engine parts are at high temperatures immediately after stopping
the engine.
MAINTENANCE AFTER EACH USE
Check all the chain saw parts for wear after every use, particularly the chain, bar and sprocket.
Air filter
Clean air filter regularly. Unscrew air filter knob (Fig.10 No.4) and remove air filter cover (Fig.10
No.5) and remove filter (Fig.21). Dust on the filter surface can be removed by tapping a corner
of the filter against a hard surface. To clean dirt in the mesh, split the filter into halves and brush
in gasoline. When using compressed air, blow from the inside. Remember to wear safety
goggles. To assemble the filter halves, press the rim until it clicks. Note, when installing the
filter, make sure that the grooves on the filter edge are correctly aligned with the intake hole on
the cylinder.
Fit new filter if damaged.
Oiling port
Dissemble the guide bar and check the oiling port for clogging (Fig. 4).
Guide bar
When the guide bar is dissembled, remove sawdust in the bar groove and the oiling port.
Grease the nose sprocket from the feeding port on the tip of the bar (Fig. 9).
Chain
Remove the chain and clean it if it is dirty, e.g. gumming with resin. Place the chain in a vessel
containing chain cleaner. There after clean the chain with clean water. If the chain is not used
again immediately, it must be treated with oil or a custom anti-corrosion spray.
Ensure that the chain tension is correct. If the chain is too loose, it may come off during use and
lead to injuries. The chain must be replaced immediately if it is damaged. The cutting teeth must
be at least 4 mm long.
Oil level and lubrication
Check the oil level and lubrication after every use. Insufficient oil and lubrication leads to
damage to the chain, bar and engine.
General
Check for fuel leakage, loose fasteners and damage to major parts, especially handle joints and
guide bar mounts. If any damage is found, make sure to have it repaired before operating the
chain saw again.
PERIODIC MAINTENANCE
Cylinder fins
NOTE: Block the air intake hole when cleaning cylinder fins.
Dust clogging between the cylinder fins will cause overheating of the engine. Periodically check
and clean the cylinder fins after removing the air filter and the cylinder cover (Fig.22). When re-
fastening the cylinder cover, make sure that switch wires and grommets are positioned correctly
in place.
