Zenoah GZ3500T owner manual Maintenance

GZ3500T

7. Maintenance

WARNING

Before cleaning, the inspecting or repairing the unit, make sure that engine has stopped and is cool. Disconnect the spark plug to prevent accidental starting.

WARNING

When returning the filter, use a pinch not to be folded the suc- tion pipe.

■MAINTENANCE AFTER EACH USE 1. Air filter

Loosen the knob and remove the air cleaner cover. Take off the filter elements and tap off attached sawdust. When they are extremely dirty, shakewash with gasoline. Dry them completely before reinstalling.

knob

air cleaner cover

filter elements

2. Oiling port

Dismount the guide bar and check the oiling port for clogging.

Oiling port

3. Guide bar

When the guide bar is dismounted, remove sawdust in the bar groove and the oiling port.

<Type : sprocket nose>

Grease the nose sprocket from the feeding port on the tip of the bar.

Grease port

Oiling port Sprocket

3. Oil filter

1.With a wire hook, take out the oil filter from the feeding port.

Oil filter

2. Wash the filter with gasoline.

WARNING

When returning the filter, use a pinch not to be folded the suc- tion pipe.

4. Spark plug

NGK

CMR7H

Clean the electrodes with a wire brush and reset the gap to 0.6 mm as necessary.

5. Sprocket

Check for cracks and for excessive wear interfering with the chain drive. If the wear is considerable, replace it with new one. Never fit a new chain on a worn sprocket, or a worn chain on a new sprocket.

4. Others

Check for fuel leakage and loose fastenings and damage to major parts, especially handle joints and guide bar mounting. If any defects are found, make sure to have them repaired before operating the saw again.

■PERIODICAL SERVICE POINTS 1. Cylinder fins

1.Remove the starter case.

2.Remove sawdust between the cylinder fins.

3. Clean the valute area.

2. Fuel filter

(a) Using a wire hook, take out the filter from the filler port.

Fuel filter

(b)Wash the filter with gasoline.

Replace with new one if clogged with dirt completely.

6. Way of the cooling air

WARNING

•The engine metal parts can burn your skin. Never touch the cylinder, muffler or ignition plug etc. during operation or right after stopping the engine.

•Before starting the engine, check around the muffler and take off sawdust. If you do not, it will cause the overheating and a fire. For preventing the trouble, please keep clean around the muffler.

This engine is air-cooled. Dust clogging between the inlet port of the cooling air and cylinder fins will cause overheating of the engine. Periodically check and clean the cylinder fins after re- moving the air cleaner and the cylinder cover.

inlet port of the cooling air

IMPORTANT

When installing the cylinder cover, make sure that switch wires and grommets are positioned correctly in place.

GB-14