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Item 64497
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Guide Bar and Saw chain installation and adjustment
tO prEVEnt SEriOuS inJury FrOM acciDEntaL OpEratiOn:
Make sure that the trigger is in the off-position and unplug the tool from its
electrical outlet before performing any procedure in this section.
The Chain Saw is supplied with the Chain Guide Bar and Saw Chain pre-installed and no assembly
is required. Before first use and before each use thereafter, check the Saw Chain tension.
note:
New Saw Chains often need to be tensioned several times during first use.
Check a new Saw Chain’s tension often when first using.
Follow the directions in the following sections for checking and adjusting Saw
Chain tension and for replacing the Saw Chain when necessary.
checking Saw chain tension
1. Before using, check the Saw Chain tension.
2. While wearing heavy-duty gloves, use your index
finger and thumb to carefully grab the Saw Chain
in the middle section under the Chain Guide Bar.
3. Pull the Saw Chain away from the Guide Bar.
4. The Saw Chain should snap back against
the Guide Bar. The Chain should fit snugly
in the groove of the Chain Guide Bar, yet
you should still be able to slide the chain
along the Chain Guide Bar by hand.
5. There should be no sagging between the Guide Bar
and Saw Chain on the
underside
of the Guide Bar.
Figure B: checking Saw chain tension
adjusting Saw chain tension
1. Remove the Nut Cover (1) and loosen
the Nut (2) on the Drive Cover (3).
2. Pull up on the Guide Bar Nose and hold it
up while making the tension adjustment.
3. Turn the Tension Screw (26)
clockwise
,
until the Saw Chain makes contact along
the bottom of the Chain Guide Bar.
Turn the Tension Screw 1/4 turn more.
4. Continue to hold the Guide Bar Nose
up while tightening the Nut.
5. Check the Saw Chain tension again following
steps 2 through 5 under
Checking Saw Chain
Tension
above. If needed, repeat the adjusting
steps to achieve the correct tension.
6. When adjustment is complete replace the Nut Cover.
tension
Screw (26)
chain Guide Bar (71)
Hex Key
Figure c: adjusting Saw chain tension
