RedMax G621AVS - Manual (Page 7)

The saw chain has very sharp edges. Use thick
protective gloves for safety.
1. Loosen the nuts and remove the chain cover.
(F1)
2. Install the attached spike to the power unit.
3. Fit the saw chain around the guide bar and,
while gearing the chain to the sprocket, mount
the guide bar to the power unit. Then fit the
chain tensioner nut into the lower hole of the
guide bar. (F1)
(1) Chain cover
(2) Chain tensioner nut
Pay attention to the correct direction of the saw
chain. (F2)
(1) Moving Direction
4. Fit the chain cover to the power unit and fasten
the nuts to finger tightness.
5. While holding up the tip of the bar, adjust the
chain tension by turning the tensioner screw until
the tie straps just touch the bottom side of the
bar rail.
6. Tighten the nuts securely with the bar tip held up
(12~15 N·m). Then check the chain for smooth
rotation and proper tension while moving it by
hand. If necessary, readjust with the chain cover
loose.
7. Tighten the tensioner screw. (F3)
(1) Loosen
(2) Tighten
A new chain will expand its length in the beginning
of use. Check and readjust the tension frequently
as a loose chain can easily derail or cause rapid
wear of itseif and the guide bar.
NOTE
NOTE
WARNING
5. Installing guide bar and saw chain
F1
F2
F3
7 