Craftsman 316.34107 manual SAW Chain Tension Adjustment

MAINTENANCE AND REPAIR INSTRUCTIONS

SAW CHAIN TENSION ADJUSTMENT

WARNING: Always use protec- tive gloves when

handling the saw chain.

Proper tension of saw chain is extremely important and must be checked before starting, as well as during any cutting operation.

Taking the time to make needed adjustments to the saw chain will result in improved cutting performance and pro- longed chain life.

NOTE: A new chain and bar will need readjustment after as few as 5 cuts. This is normal during the break- in period, and the interval between future adjust- ments will lengthen quickly (Fig. 22).

CAUTION: If saw chain is TOO LOOSE or TOO

TIGHT, the sprocket, bar, chain, and crank- shaft bearings will wear more rapidly. Study Fig. 22 for information concerning correct cold tension (A), correct warm tension (B), and as a guide for when saw chain needs adjustment (C).

NOTE: Make sure the Chain Brake® is disengaged.

Disengage the Chain Brake® (D) by pulling it backward (Fig. 23).

1.Tensioning the chain can be accomplished with rela- tive ease. Turn knob (E) counter clockwise. Then turn ring (F) counter-clockwise to loosen chain or clockwise to tighten chain (Fig. 24).

A B C

Fig. 22

Fig. 23

E

F

Fig. 24

2.After adjustment and while wearing heavy duty work gloves, move the saw chain back and forth on the guide bar to be sure the chain moves freely and is in proper mesh with sprocket.

NOTE: If the chain is difficult to rotate or if it binds on the guide bar, too much tension has been applied and must be adjusted as described in step 1.

3.While applying tension to the chain, hold the tip of the bar up and then tighten the knob (E).

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