MAINTENANCE
Cooling system
To keep the working temperature as low as possible the machine is equipped with a cooling system.
The cooling system consists of:
1Air intake on the starter.
2Air guide plate.
3Fins on the flywheel.
4Cooling fins on the cylinder.
5Cylinder cover (directs cold air over the cylinder).
Clean the cooling system with a brush once a week, more often in demanding conditions. A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder.
Below you will find some general maintenance instructions.
Daily maintenance |
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| |
1 | 2 | 3 | 4 |
5 | 6 | 7 | 8 | 9 |
1Check the throttle trigger for smooth operation. If any binding occurs or if engine fails to return to idle, the machine should be taken to your dealer, before it is used again. Also, be sure that the trigger cannot be pulled until the throttle trigger lockout is depressed.
2Clean the chain brake and check that it operates safely. Make sure that the chain catcher is undamaged, and replace it if necessary.
3Clean or replace the air filter as necessary. Check for damage or holes.
4The bar should be turned daily for more even wear. Check the lubrication hole in the bar, to be sure it is not clogged. Clean the bar groove. If the bar has a sprocket tip, this should be lubricated.
5Check that the bar and chain are getting sufficient oil.
6Sharpen the chain and check its tension and condition. Check the drive sprocket for excessive wear and replace if necessary.
7Clean the air intake on the starter. Check the starter and starter cord for wear or damage.
8Check that nuts and screws are tight.
9Test the stop switch to be sure it shuts off the engine.
Weekly maintenance
1 | 2 | 3 | 4 0,5 mm |
5 | 6 | 7 | 8 |
1Check that the vibration damping elements are not damaged.
2Lubricate the clutch drum bearing.
3File off any burrs from the edges of the bar.
4Clean the spark plug. Check that the electrode gap is 0.5 mm (0,020 inch).
5Clean the fins on the flywheel. Check the starter and the recoil spring.
6Clean the cooling fins on the cylinder.
7Clean or replace the spark arrestor mesh in the muffler.
8Clean the carburettor compartment.
Monthly maintenance
1 | 2 | 3 | 4 | 5 |
6 | 7 | 8 0,5 mm 9 |
1Check the brake band on the chain brake for wear.
2Check the clutch centre, clutch drum and clutch spring for wear.
3Clean the outside of the carburettor.
4Check fuel hose for cracks or other damage. Change if necessary.
5Clean the inside of the fuel tank.
6Clean the inside of the oil tank.
7Check all cables and connections.
8Change the spark plug.
9Change the air filter.
English – 33
