We recommend all service and adjustments not listed in this manual be performed by an authorized or Master 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
Inspect and Clean:
Bar . . . . . . . . . . . . . . Before each use Complete saw . . . . . After each use Air filter . . . . . . . . . . . Every 5 hours * Spark arrestor . . . . . Every 25 hours *
Replace spark plug . Yearly Replace fuel filter . . . Yearly * Hours of Operation
AIR FILTER
CAUTION: Do not clean filter in gasoline or other flammable solvent to avoid creating a fire hazard or producing harmful evapora- tive 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.
S Clean the cover and the area around it to keep dirt and sawdust from falling into the carburetor chamber when the cover is removed.
S Remove the parts as illustrated below. S Wash the filter in soap and water.
Cylinder
Cover
Screws
Cylinder
Cover
CARBURETOR ADJUSTMENTS
Your carburetor is equipped with limiter caps. Carburetor adjustment is a compli- cated task. We recommend that you take your unit to an Authorized Service Dealer. Damage will occur if you turn the needles beyond the limiter stops.
BAR MAINTENANCE
If your saw cuts to one side, has to be forced through the cut, or been run with an improp-
er amount of bar lubrication it may be nec- essary to service your bar. A worn bar will damage your chain and make cutting diffi- cult.
Replace your bar if bent or the inside rails of the bar are worn.
S Clean the oil holes after each 5 hours of operation
S Remove sawdust from bar groove peri- odically with a wire or putty knife.
Guide Bar
Groove
Oil Holes
CHAIN SHARPENING
Chain sharpening is a complicated task that requires special tools. We recommended you refer chain sharpening to a professional chain sharpener.
IGNITION TIMING
Ignition timing is fixed and nonadjustable.
SPARK PLUG
Replace the spark plug yearly.
Stop engine and allow to cool, and secure the unit before storing or transporting in a vehicle. Store unit and fuel in an area where fuel vapors cannot reach sparks or open flames from water heaters, electric motors or switches, furnaces, etc. Store unit with all guards in place. Position so that any sharp object cannot accidentally cause injury to passersby. Store the unit out of reach of children.
S Before storing, drain all fuel from the unit. Start engine and allow to run until it stops.
SClean the unit before storing. Pay par- ticular attention to the air intake area, keeping it free of debris. Use a mild de-
tergent and sponge to clean the plastic surfaces.
S Do not store the unit or fuel in a closed area where fuel vapors can reach sparks or an open flame from hot water heaters, electric motors or switches, fur- naces, etc.
S Store in a dry area out of the reach of children.
CAUTION: It is important to prevent gum deposits from forming in essential fuel sys- tem parts such as the carburetor, fuel filter, fuel hose, or fuel tank during storage. Alco- hol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to fuel mixture separation and formation of acids during storage. Acidic gas can damage the engine.
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