WARNING: Disconnect the spark plug before performing maintenance, except for carburetor adjustments.
We recommend all service and adjustments not listed in this manual be performed by an Authorized Service Dealer.
MAINTENANCE SCHEDULE
Check:
Fuel mixture level . . . . Before each use Bar lubrication . . . . . . . Before each use Chain tension . . . . . . . Before each use Chain sharpness . . . . Before each use For damaged parts . . Before each use For loose caps . . . . . . Before each use For loose fasteners. . . Before each use For loose parts . . . . . . Before each use
Inspect and Clean:
Bar . . . . . . . . . . . . . . . . Before each use Complete saw . . . . . . . After each use Air filter . . . . . . . . . . . . . Every 5 hours* Chain brake . . . . . . . . Every 5 hours* Spark arresting screen
and muffler . . . . . . . . . Every 25 hours* Replace spark plug . Yearly Replace fuel filter . . . Yearly
* Hours of Operation
AIR FILTER
CAUTION: Do not clean filter in gaso- line or other flammable solvent to avoid creating a fire hazard or producing harmful evaporative emissions.
Cleaning the air filter:
A dirty air filter decreases engine perform- ance and increases fuel consumption and harmful emissions. Always clean after every 5 hours of operation.
1.Clean the cover and the area around it to keep dirt and sawdust from falling into the carburetor chamber when the cover is removed.
2.Remove the parts as illustrated below.
3.Wash the filter in soap and water. Rinse in clean cool water. Air dry completely before reinstalling.
4.Reinstall parts.
Air Filter | Cylinder | |
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BAR MAINTENANCE
If your saw cuts to one side, has to be forced through the cut, or been run with an improper amount of bar lubrication it may be neces- sary to service your bar. A worn bar will dam- age your chain and make cutting difficult.
After each use, ensure ON/STOP switch is in the STOP position, then clean all sawdust from the guide bar and sprocket hole.
To maintain guide bar:
SMove ON/STOP switch to the STOP posi- tion.
SLoosen and remove chain brake nuts and chain brake. Remove bar and chain from
saw.
SClean the oil holes and bar groove after each 5 hours of operation.
Remove Sawdust From
Guide Bar Groove
Oil Holes
S Burring of guide bar rails is a normal process of rail wear. Remove these burrs with a flat file.
SWhen rail top is uneven, use a flat file to re- store square edges and sides.
File Rail Edges
and Sides
Square
Worn Groove | Correct Groove |
Replace guide bar when the groove is worn, the guide bar is bent or cracked, or when excess heating or burring of the rails occurs. If replacement is necessary, use only the guide bar specified for your saw in the repair parts list or on the decal located on the chain saw.
SPARK PLUG
The spark plug should be replaced each year to ensure the engine starts easier and runs better. Ignition timing is fixed and non- adjustable.
1.Loosen 3 screws on cylinder cover.
2.Remove the cylinder cover.
3.Pull off the spark plug boot.
4.Remove spark plug from cylinder and discard.
5.Replace with Champion
6.Reinstall the spark plug boot.
7.Reinstall the cylinder cover and 3 screws. Tighten securely.
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