Page 11
For technical questions, please call 1-888-866-5797.
Item 63287
SAFET
y
Op
ERA
TION
M
AINTENAN
c
E
SETU
p
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 c: checking Saw chain Tension
Adjusting Saw chain Tension
1. Loosen the Lock Knob (7) on the
Drive Cover (8) several turns.
2. Turn the Chain Tension Knob (6)
clockwise
to increase chain tension and
counterclockwise
to decrease tension.
3. Tighten the Lock Knob on the Drive Cover.
4. 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.
chain Tension Knob
Lock Knob
Drive cover
Figure D: Adjusting Saw chain Tension
Replacing the Saw chain
This tool comes with either Oregon 90 or 91 chain Guide Bar and Saw chain. When
replacing Guide Bar or Saw chain, make sure the Guide Bar and Saw chain match.
1. Soak the new Saw Chain overnight in
Bar and Chain Oil (sold separately).
2. Loosen the Lock Knob on the Drive
Cover, then turn the Chain Tension Knob
counterclockwise until the Saw Chain is loose.
3. Unthread the Lock Knob and
remove the Drive Cover.
4. Push the Chain Guide Bar towards the
Sprocket to further loosen the Saw Chain.
5. Remove the Saw Chain from
the Sprocket, then the Guide Bar.
Note:
Check the condition of the Sprocket when
replacing the Chain. The Sprocket should be
replaced if it shows signs of wear or is damaged.
If needed, have the Sprocket replaced and the
bearings greased by a qualified technician.
Note:
Check the condition of the Chain Guide Bar
when replacing the Chain. Refer to
Chain Guide Bar
Care
on page 19.
6. Flip the Chain Guide Bar over before mounting
the new Saw Chain. This will ensure that the
Chain Guide Bar wears evenly over time.
7. Place the new Saw Chain around the Sprocket
and over the Guide Bar. Make sure the Cutters of
the Saw Chain are facing away from the Chainsaw
along the top edge of the Guide Bar. Fit the Chain
links into the groove around the Guide Bar.
8. Replace the Drive Cover and tighten the Lock
Knob so that the Cover is snug, but not tight.
Tension the Saw Chain following the steps
in
Adjusting Saw Chain Tension
above.
