SUPERCEDED
Adjusting the Chain
Tension
Service Interval:
Before each use or daily
After each battery drain cycle
Ensure that the chain is properly tensioned. A loose chain will
shorten the life of the drive sprocket and the guide bar and
may break the chain. An overtightened chain will overheat
the guide bar and chain, causing rapid wear and possible
motor burnout. Also, check the chain tension after a few
cuts. A new chain usually stretches and requires adjustment
after its first use.
The chain tension is correct when you are able to use a gloved
hand to pull the chain smoothly around the guide bar. The
chain should remain in contact with the bottom edge of the
guide bar.
DANGER
Contact with the chain saw teeth can cause serious
injury.
•
Remove the battery pack before adjusting or
maintaining the chain saw.
•
Always wear gloves when adjusting or
maintaining the chain saw.
1.
Place the chain saw on a level surface and remove the
battery pack; refer to
Removing the Battery Pack (page
.
2.
Loosen, but do not remove the wing nut on the cover
(
).
3.
Hold up the tip of the guide bar (
g192117
Figure 28
4.
Adjust the chain.
•
To tighten the chain,
turn the chain tensioning
knob clockwise.
•
To loosen the chain,
turn the chain tensioning
knob counterclockwise
Adjust the chain until the chain touches the bottom
edge of the guide bar, then tighten the knob an
additional 1/8 to 1/4 turn.
5.
Tighten the wing nut until it is snug (
).
6.
Check the chain tension; if the chain is loose, repeat
this procedure.
Servicing the Guide Bar,
Chain, and Drive Sprocket
Service Interval:
Yearly or before storage
DANGER
Contact with the chain saw teeth can cause serious
injury.
•
Remove the battery pack before adjusting or
maintaining the chain saw.
•
Always wear gloves when adjusting or
maintaining the chain saw.
1.
Place the chain saw on a flat surface and remove the
battery pack; refer to
Removing the Battery Pack (page
.
2.
Remove the wing nut that secures the cover (
).
g196534
Figure 29
1.
Chain tensioning knob
3.
Wing nut
2.
Cover
3.
Loosen the chain by turning the chain-tightening screw
counterclockwise (
).
4.
Separate the chain from the guide bar and set them
aside.
5.
Remove the clip, spacer, and drive sprocket from the
chain saw (
17
Содержание Power Plex 51880
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