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5.4 CHAIN BRAKE
This is a safety braking system that blocks
chain movement when kickback occurs
during cutting. Kickbacks occur following
an irregular contact of the tip of the bar, with
a rapid upward movement of the bar that
causes the hand to strike the front guard.
It must be manually released to
disengage the chain brake.
Chain brake engaged.
This is achieved when the
front hand guard is pushed
all the way forward.
Chain brake disengaged. This
is achieved when the front hand
guard is pulled all the way back,
towards the machine body,
until it clicks into position.
Do not use the machine if the chain
brake does not function correctly and
have it inspected by your dealer.
6. USING THE MACHINE
The safety regulations to follow
are described in chap. 2. Strictly
comply with these instructions to
avoid serious risks or hazards.
IMPORTANT For instructions
regarding the motor and the battery (if
supplied), read the relevant manuals.
6.1 PREPARATION
Before starting to work, it is necessary to carry
out several checks and operations to ensure
you can work efficiently and in maximum safety.
6.1.1
Checking the battery
The machine is supplied without the battery.
Purchase the battery with the capacity that
most suits your operational requirements
and fully charge it according to the
instructions in the battery booklet.
The list of approved batteries for this machine
is found in the "Technical Data" table.
• Before each use:
– check the battery charge status according
to the instructions in the battery booklet.
6.1.2 Filling with chain lubrication oil
Fill with chain lubrication oil before using
the machine. For oil filling methods and
precautions (see paragraph 7.3).
6.1.3
Checking the chain tension
Perform all operations
with the motor off.
Check the chain tension.
The tension is correct when the drive links
do not slip out of the chain guides if you hold
the chain in the middle of the bar (Fig. 7).
To adjust the chain tension:
1. loosen the cover nuts, using
the supplied wrench;
2. turn the chain tension adjuster screw (Fig.
-
5.D) to achieve the desired tension;
+
3. raise the bar and tighten the guard nuts
securely using the wrench (Fig. 8.A).
Never work with the chain loose,
as it can be hazardous if the chain
slips out of the bar guides.
IMPORTANT During the first period of use
(or after replacing the chain) it must be checked
more frequently due to settling of the chain.
6.2 SAFETY CHECKS
Run the following safety checks and
check that the results correspond to
those outlined on the tables.
Always carry out the safety
checks before use.
6.2.1 General safety check
Object
Grip and guards
Screws on the
machine and blade
Cooling air ducts
Guide bar
Chain
EN - 8
Result
Clean, dry and fixed
firmly to the machine
Correctly tightened
(not loose)
Not clogged
Properly installed
Sharp, not damaged
or worn, mounted and
tensioned correctly.
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