Hanseatic PKS 4640 Manuel D'utilisation page 46

GB | Operating Instructions
b) In case of a less strong kickback, the chain brake can
be automatically engaged by consequent contact of
the lever with the left hand.
Consequently: always grip the chainsaw
with both hands. Always remember that
the chain brake doees not trepresent at a
total protection.
It is therefore crucial to avoid all the hazard situa-
tions explained in the previous SAFETY DEVICE
CHAPTER (points of paragraphs A17-A18).
c) The chain brake can be applied manually by pushing
it forward.
d) The brake is released by pulling the lever towards the
front handle (Fig. 31).
e) Before starting each job, check manually that the lever
click releases both forwards and backwards.
It is recommended that the check be performed with
the engine running at minimum and for a short time.
If the click releases do not occur or opera-
tion of the lever has become stiff, do not use
the chainsaw. Contact a qualified service
centre.
- Periodically remove all shavings and sawdust from the
visible parts of the chain brake mechanisms.
Do not attempt to repairs or modifications.
8.4 CHAIN
MAINTENANCE AND SHARPENING
When the chain is properly sharpened, the work is not
tiring, the cutting yield is high, and there is no abnormal
wear on the mechanical parts or the bar.
- If the chain is not sufficiently
9
lubricated, increase the oil
flow by rotating the setting
screw of the pump anticlock-
wise (Fig. 17).
- Before sharpening, the chain must be made
taught by means of the chain tensioner (Fig.
9) see the section on "MOUNTING THE
BAR AND CHAIN ".
- After sharpening, slacken the chain as per the mount-
ing instructions.
- During sharpening, lock the chain, using the brake.
- Use a round file (specific for chains) 5/32" (4,5 mm) in
diameter (Fig. 18 part.1).
Observe the sharpening angle as in (Fig.18 part.2-3).
- Sharpen by filing from the inside outwards (Fig.18
part. 5) all the teeth on one side and then all the teeth
on the other.
- Position the blade in such a way that it projects about
1 mm (Fig. 18 part. 4) above the level of the cutting
edges.
8.5 "MINIMUM" ENGINE RPM ADJUSTMENT -
SCREW [T]
Because such adjustment requires specific
training and work tools, always contact an AU-
THORISED AFTER-SALES SERVICE.
Screw [T]: hold the butterfly valve slightly open so as to
be able to regulate the "MINIMUM" rpm at an appropriate
rotation speed.
The carburettor of your chain-
saw has been set at standard
values during manufacture. To
regulate minimum engine rpm,
only screw [T] can be used (fig.
19).