Husqvarna 137, 142 Service, Limbing, Pruning, Air Filter, Cleaning the air filter

Models: 137, 142

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LIMBING

SWatch out for springpoles. Use extreme caution when cutting small size limbs. Slender material may catch the saw chain and be whipped toward you or pull you off

balance.

S Be alert for springback. Watch out for branches that are bent or under pressure. Avoid being struck by the branch or the saw when the tension in the wood fibers is released.

SKeep a clear work area. Frequently clear branches out of the way to avoid tripping over them.

LIMBING

SAlways limb a tree after it is cut down. Only then can limbing be done safely and prop-

erly.

S Leave the larger limbs underneath the felled tree to support the tree as you work.

SStart at the base of the felled tree and work toward the top, cutting branches and

limbs. Remove small limbs with one cut.

SKeep the tree between you and the chain.

Cut from the side of the tree opposite the branch you are cutting.

SRemove larger, supporting branches with the cutting techniques described in BUCK-

ING WITHOUT A SUPPORT.

S Always use an overcut to cut small and

freely hanging limbs. Undercutting could cause limbs to fall and pinch the saw.

PRUNING

PRUNING WARNING: Limit pruning to limbs shoulder height or below. Do not cut if branches are higher than your shoulder. Get a professional to do the job.

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 truck of the tree.

Second cut

Third cut

Collar

First cut

Pruning technique

SERVICE

Pruning technique 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 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.

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

Air filter screws

CARBURETOR ADJUSTMENT

SERVICE WARNING: The chain will be moving during most of this procedure. Wear your pro- tective equipment and observe all safety pre- cautions. The chain must not move at idle speed.

The carburetor has been carefully set at the factory. Adjustments may be necessary if you notice any of the following conditions:

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Husqvarna 137, 142 instruction manual Service, Limbing, Pruning, Air Filter, Cleaning the air filter, Carburetor Adjustment