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SAFETYOPERATIONMAINTENANCE SETUP
5. Place the slotted end of the Chain Guide Bar
over the two bar locating tabs and Guide Bar
Bolt on the Press Block and place the Saw Chain
over the Drive Sprocket. The Bar Support Plate
must be on the outside of the Guide Bar. Check
again that the Saw Chain cutters are aligned
properly and the Saw Chain drive links are
seated completely in the slot of the Guide Bar.
Guide Bar
Press
Block
Drive
Sprocket
Figure F: Installing Chain Guide Bar
6. Replace the Drive Cover. Using a gloved hand, pull
Guide Bar forward firmly before tightening Chain
Tension Knob clockwise just until it is snug.
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Figure G: Pull Guide Bar Forward
7. Find a solid surface that will not damage the
Saw Chain or Guide Bar. Rotate the Chainsaw
so that the Guide Bar is pressed firmly
against the surface. While under pressure,
tighten the Chain Tension Knob securely.
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1
Figure H: Apply Pressure to Guide Bar
Before Final Tightening
Note: Saw Chain tensioning should always be
done from low tension to proper tension.
8. After final tightening, check Saw Chain tension
as explained in Checking Saw Chain Tension
below to make sure it is properly adjusted.
9. To retension Chain, turn the Chain Tension
Knob counterclockwise three full turns, then
retighten the Knob by repeating steps 6 – 8
above to reset the chain tension.
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 and let go.
4. The Saw Chain should snap back against
the Guide Bar. The Drive Links should fit
snugly in the groove of the Chain Guide Bar,
yet you should still be able to slide the Saw
Chain along the Guide Bar easily by hand.
5. There should be no sagging between the Guide
Bar and Saw Chain on the underside of the Guide
Bar, and Drive Links should not be visible.
Note: Saw Chain tension should be checked
before and periodically during operation.
Guide Bar
Saw Chain
(No Sagging)
Drive Link
Figure I: Checking Saw Chain Tension
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