19
5. Starting at the tip, mount the chain drive links into the
bar groove, leaving a loop at the back of the bar. The
chain will loosely fit until it is placed on the sprocket
(Figs. 21 & 22).
NOTE: Make certain of the direction of the chain
. If the chain is mounted
backwards, the saw will vibrate abnormally and will
not cut.
6. Mount the guide bar by inserting the stud bolt into the
long slot on the guide bar; arrange the chain loop on the
back of the bar to ensure the sprocket is inserted in the
loop (Fig. 23).
7.
Adjust the chain tension by pulling the guide bar + chain
forward, and make sure the chain is fully stretched. Using
your other hand, Fit the chain/sprocket end cover back on
by inserting the small tab located on the right bottom of
the end cover into the hole on the machine body. Turn the
end cover + chain tensioning knob clockwise until you find
the right chain tension (Figs. 24 – 25).
NOTE: The chain is correctly tensioned when there is no
sag on the underside of the guide bar; the chain is snug,
but can be rotated by hand without binding.
NOTE: If the chain is too tight, it will not rotate. Loosen
the end cover + chain tensioning knob slightly by 1/4 turn
counterclockwise. Ensure that the chain can be rotated
by hand without binding. Do not loosen the
end cover +
chain tensioning knob
too much otherwise the chain + bar
assembly will come loose.
Fig. 20
Chain rotation
Sharp cutting edge
Chain drive link
R
Fig. 21
Fig. 22
Loop
Fig. 23
Guide bar
Sprocket
Stud bolt
Fig. 24
Insert the tab into
the hole
Fig. 25
End cover + chain
tensioning knob
Pull to stretch
