Kapitelüberschrift
29
Then slacken the chain tension by slowly turning the chain tensioning wheel
(Fig. 2/pos. 12) in a
ANTI-CLOCKWISE DIRECTION and then pull the chain back and
forth on the bar (Fig. 4). Continue until the chain can be moved smoothly but is
still closely seated (Fig. 3/pos. X2). Increase the tension by turning the chain ten-
sioning wheel in a
CLOCKWISE DIRECTION.
B
When the saw chain is correctly tensioned, hold the tip of the bar upwards and
completely tighten the bar fastening wheel (Fig. 2/pos. 14).
m
A new saw chain stretches, requiring adjustment after as few as 5 cuts. This is
normal with a new chain, and the interval between future adjustments will length-
en quickly.
m
If the saw chain is
TOO LOOSE or TOO TAUT, the drive wheel, chain bar, chain and
crank shaft bearing will suffer premature wear. Fig. 3/pos. X2 shows the correct
tension (when cold) and Fig. 3/pos. X3 shows the tension (when warm). Fig. 3/pos.
X1 shows a chain that is too loose.
3. CHAIN BRAKE MECHANICAL TEST
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.
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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 oper-
ated carelessly. Always test the chain brake before using your saw and periodically
while on the job. (See below for details of how to perform a test of the mechanical
brake).
4. TO TEST CHAIN BRAKE
•
The chain brake is
DISENGAGED (chain can move) when the BRAKE LEVER (3) IS
PULLED BACK AND LOCKED shown in Fig. 5.
•
The chain brake is
ENGAGED (the chain is locked) when the brake lever (3) is
pulled forward (shown in Fig. 6). It should not be possible to move the chain (Fig.
4).
Set up