4.2.1 Checking the chain tension
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. 10).
5. CONTROLS
5.1 ENGINE START/STOP SWITCH
Used to start and stop the engine (Fig. 11.C).
The engine can start and run.
The engine stops.
After pressing the stop switch,
the switch automatically returns
to the start position "I"
5.2 CHOKE LEVER
Used to turn on the engine when cold.
The choke control has two positions:
Position A (Fig. 11.A) - the
choke is not engaged (normal
operations and warm start)..
Position B (Fig. 11.B) - the choke
is engaged (for a cold start). .
5.3 PRIMER CONTROL BUTTON
Press the rubber button of the primer
(Fig. 12.A) to inject fuel into the
carburettor intake manifold to facilitate
startup when the engine is cold.
5.4
PRESSURE RELIEF
VALVE CONTROL (FOR
MODEL SP 526 ONLY)
Press the valve (Fig. 13.E) to reduce
the compression of the cylinder and
to start the machine more easily.
5.5 THROTTLE TRIGGER LEVER
Used to regulate the chain speed.
The throttle trigger lever (Fig. 12.B) can
only be used if the throttle interlock lever
is pressed simultaneously (Fig. 12.C).
The correct running speed will be
achieved by pressing the throttle trigger
lever (Fig. 12.B) as far as possible.
5.6 INTERLOCK LEVER
The interlock lever (Fig. 12.C) allows the
throttle trigger lever to be used (Fig. 12.B).
5.7 HANDLE FOR MANUAL START
For manual engine start-up (Fig. 11.D).
5.8 CHAIN BRAKE
This is a safety braking system that blocks
the 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 (Fig. 1.D).
It must be manually released to
disengage the chain brake.
Chain brake disengaged. This
is achieved when the front hand
guard (Fig. 1.D) is pulled all the
way back towards the front hand
grip until it clicks into position.
Chain brake engaged. This
is achieved when the front
hand guard (Fig. 1.D) is
pushed all the way forward.
Do not use the machine if the chain
brake does not function correctly and
have it inspected by your dealer.
EN - 7