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MAINTENANCE
REPLACING THE BAR AND CHAIN (See Figure 16-19)
W A R N I N G
To avoid possible serious injury, stop the motor and remove the battery from the pole saw
before replacing the bar, chain, or performing any maintenance operation.
• Remove the lock bolt and drivecase cover.
• The bar contains a bar stud slot that fits over the bar stud. The bar also contains a chain
•
pin hole.
• Fit the chain over the sprocket and into the bar groove. The cutters on the top of the bar
should face toward the bar tip, in the direction of the chain rotation.
•
bar must be free to move for tension adjustment.
• Remove all slack from chain by turning the chain tensioning screw clockwise, assuring that
the chain seats into the bar groove during tensioning.
• Lift the tip of the bar up to check for sag. Release the tip of the bar, and turn the chain
tensioning screw 1/2 turn clockwise.
• Repeat this process until sag does not exist.
• Hold the tip of the bar up and tighten the lock bolt securely.
• Chain is correctly tensioned when there is no slack on the underside of the bar, the chain is
snug, but it can be turned by hand without binding.
NOTE: If chain is too tight, it will not rotate. Loosen the bar nut slightly and turn adjusting screw 1/4 turn coun-
terclockwise. Lift the tip of the bar up and retighten lock bolt.
Fig. 18
Drivecase
Cover
Chain
Bar
Chain Rotation
Sprocket
Chain
Fig. 16
Lock
Bolt
Chain
Tensioning Pin
Chain Tensioning
Screw
Bar Stud
Sprocket
BAR
Chain
Tensioning
Pin Hole
Lock Bolt
Drivecase
Cover
Bar Stud Slot
Lock Bolt
Fig. 17
Fig. 19
19