PROF 502313227 Instruction Manual page 14

After making the adjustment and with the tip of the bar
still upwards, tighten the bar fastening pin (Fig. 2/pos.
B). The chain is correctly tensioned when it is closely
seated and can be pulled right around by hand, when
the chain brake lever (3) is released.
WARNING! Wear high-strength gloves at all times when
handling or adjusting the saw chain.
If the chain is hard to turn around the chain bar or
jammed, it is too tightly tensioned.
Make the following small adjustments:
Undo the bar fastening pin (Fig. 2/pos. B) by 1/2 of a turn
ANTI-CLOCKWISE. Then slacken the chain tension by
slowly turning the bar fastening pin (Fig. 2/pos. B) in a
ANTI-CLOCKWISE DIRECTION and then pull the saw
chain (2) back and forth on the chain bar (1) (Fig. 6).
Continue until the chain can be moved smoothly but is
still closely seated (Fig. 5/pos. X2). Increase the tension
by turning the bar fastening pin (Fig. 2/pos. B) in a
CLOCKWISE DIRECTION.
When the saw chain is correctly tensioned, hold the tip
of the bar upwards and completely tighten the bar
fastening pin (Fig. 2/pos. B).
Secure the side cover (A) with the bar mounting nuts
(11), by using the spark plug spanner (19) (Fig. 7).
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 lengthen
quickly.
If the saw chain is TOO LOOSE or TOO TAUT, the drive
wheel, chain bar, saw chain and crank shaft bearing will
suffer premature wear. Fig. 5/pos. X2 shows the correct
tension (when cold) and Fig. 5/pos. X3 shows the
tension (when warm). Fig. 5/pos. X1 shows a chain that
is too loose.
MECHANICAL CHAIN BRAKE TEST
Your chainsaw is equipped with a chain brake that
reduces the possibility of injury due to kickback. The
chain brake is activated if pressure is applied against
the chain brake lever (3) when, as in the event of
kickback, the operator's hand strikes the lever. When the
chain brake is actuated, saw chain movement stops
abruptly.
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 chainsaw is operated 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 chain brake).
TESTING THE CHAIN BRAKE (FIG.8)
The chain brake is DISENGAGED (chain can move) when
the CHAIN BRAKE LEVER (3) IS PULLED BACK AND
LOCKED (pos.1).
The chain brake is ENGAGED (the chain is locked) when
the chain brake lever (3) is pulled forward (pos. 2). It
should not be possible to move the saw chain.
WARNING!
FILLING/ ChECKING ThE LUBRICATING OIL (FIG.9)
Season Temperature
FILLING/ ChECKING ThE ChAIN OIL (FIG.10)
FILLING/ ChECKING ThE FUEL (FIG.11)
14
Oil Type