8. Ensure the chain is properly set in the slot around
the entire guide bar.
9. Loop the chain around the hub and fit the bar
around the bolts.
10. Reinstall the drive cover.
11. Use the adjustment tool to rotate the chain ten-
sioning screw to increase tension (clockwise)
until the chain is snug around the guide bar.
• The tension is correct when the chain snaps
back after being pulled 1/8" (3 mm) away from
the guide bar. No sag should be visible in the
chain.
• Do not over-tension the chain - excess tension will
cause excessive wear and will reduce the life of
the chain and could damage the bar.
• New chains could stretch and loosen during
initial use. Remove battery pack and check
chain tension frequently during the first two
hours of use.
12. Tighten the guide bar nut securely.
Bolt
Hub
Always remove battery pack before
WARNING
changing or removing accesso-
ries.
Fill oil reservoir with chain oil (not
NOTICE
provided) before starting the chainsaw
and when tank is less than 1/4 full. Failure to oil
the chain will cause damage to the bar and chain.
Check oil level frequently and fill the oil reservoir after
each full battery discharge. Use a high quality chain
oil. The oil will keep the saw chain and guide bar
properly lubricated. Never run the saw without chain
oil. Keep the reservoir more than 1/4 full to ensure
sufficient oil is available for the job. Always lightly oil
the chain when storing to prevent rust. Always empty
the oil tank when storing to prevent leakage.
It is recommended to use a vegetable
NOTICE
based chain oil when pruning trees. Min-
eral oil may harm trees. Never use waste oil automo-
tive oil, or very thick oils. These could damage the
chainsaw.
Filling the Oil Reservoir
1. Remove the battery pack.
2. Place the saw on a flat, firm surface, drive cover
side down.
3. Unscrew the oil cap.
4. Carefully fill reservoir with chain oil.
5. Tighten oil cap securely.
6. Perform a functional test of the chain brake, lock-
off tab, and variable speed trigger.
7. Repeat as needed during use.
8. Periodically check that the saw chain is lubricat-
ing correctly:
• With a full reservoir, hold the tool with the tip of
the guide bar pointing at a light-colored surface.
• Run the tool for approximately 30 seconds.
• An oil line should become visible on the light
surface.
• If not, remove and clean the guide bar thor-
oughly. Ensure the guide bar sprocket (at the
tip) rotates freely.
• If the lubrication system still does not work
properly, contact a MILWAUKEE service facility.
7
Chain Oil