McCulloch Official Chainsaw Manual and Maintenance Guidelines

SMake your fist cut 1/3 of the way through the bottom of the limb.

SNext make a 2nd cut all the way through the limb. Then cut a third overcut leaving a 1 to 2 inch collar from the trunk of the tree.

Second cut

Third cut

Collar

First cut

Pruning technique

SERVICE AND ADJUSTMENTS

WARNING: Improper maintenance could result in serious engine damage or in se- rious injury.

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.

	Cylinder Cover
Air Filter	Screws

Cylinder

Cover

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 Hole

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

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