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17
Step 1 - Chain brake mechanical test
WARNING!
The purpose of the chain brake is to reduce the possibility of injury due to
kickback; however, it cannot provide the intended measure of protection if the
saw is operated carelessly.
Always test the chain brake before using your saw and periodically while on the
job.
Your chainsaw is equipped with a chain brake that reduces the possibility of injury due to
kickback. The brake is activated if pressure is applied against the brake lever when, as in
the event of kickback, the operator’s hand strikes the lever. When the brake is actuated,
chain movement stops abruptly.
Before starting, test the chain brake by pushing it forward until an audible click is heard.
a. The chain brake is DISENGAGED (chain can move by hand) when the BRAKE LEVER
IS PULLED BACK AND LOCKED.
b. The chain brake is ENGAGED (the chain is locked) when the brake lever is pushed
forward. It should not be possible to move the chain by hand.
WARNING!
The brake lever should snap into both positions. If this is not the case, do not
use your saw. Contact the helpline immediately on 01904 727500.
a
b
Step 2 - Adjust the chain tension
chain tension screw
chain cover lever
loose
tight
2
1
loose
tight
Bar
knob
1a Pull the chain cover lever out, and slightly loosen the chain cover.
1b Take off the blade protector. While holding up the tip of the bar, adjust the chain tension
by turning the tensioner screw until the chain engages in the bar channel.
1c While lifting the tip of the guide bar, tighten the bar knob securely (clockwise). Hand
tighten only!
NOTE:
When tensioned correctly, it should be possible to pull one full chain link free of the
bar channel with ease.
A new chain will expand its length during the first period of use. Check and re-adjust the
tension frequently, as a loose chain can easily derail or cause rapid wear of itself and the
chain bar.
