17
MAINTENANCE
NOTE:
Make certain of direction of the chain.
• Position the chain so there is a loop at the
back of the bar.
• Hold the chain in position on the bar and
place the loop around the sprocket.
• Fit the bar flush against the mounting
surface so that the bar studs are in the long
slot of the bar. Ensure that the chain is over
the sprocket.
Note: When placing the bar on the bar studs,
ensure that the adjusting pin is in the chain
tension pin hole.
• Replace the chain cover.
• Remove all slack from the chain by turning
the chain adjustment screw clockwise until
the chain sea ts snugly against the bar with
the drive links in the bar groove.
• Lift the tip of the guide bar up to check for
sag.
• Release the tip of the guide bar and turn the
chain adjustment screw 1/2 turn clockwise.
Repeat this process until sag does not exist.
• Hold the tip of the guide bar up and tighten
the chain cover lock nuts by turning them with
the wrench. The chain is correctly tensioned
when there is no sag on the underside of the
guide bar, the chain is snug, but it can be
turned by hand without binding.
NOTE:
If the chain is too tight, it will not
rotate. Loosen the chain cover lock nuts
slightly and turn the chain adjustment screw
1/4 turn counterclockwise. Lift the tip of the
guide bar up and retighten the chain cover
lock nuts. Ensure that the chain will rotate
without binding.
ADJUSTING THE CHAIN TENSION
WARNING:
Never touch or adjust the chain while the
motor is running. The saw chain is very
sharp. Always wear protective gloves when
performing maintenance on the chain.
• Loosen the chain cover lock nuts with the
supplied wrench. The chain cover lock nuts do
not have to be completely removed in order to
adjust the chain tension.
• Rotate the chain adjustment screw
clockwise to increase the chain tension and
rotate counterclockwise to decrease the chain
tension.
• Once the chain is at the desired tension,
tighten the chain cover lock nuts.
nut
wrench
nut
screw
wrench
Bar
Groove
Chain Drive Links
Not
for
Reproduction
