Checking The Chain Tension; Controls; Throttle Trigger Lever; Iinterlock Lever - Stiga PR 500 Li 48 Manual De Instrucciones

1. Using the supplied wrench, unscrew the nut
(Fig. 3.A) and remove the chain guard (Fig.
3.B), to access the drive pinion and bar seat.
2. Mount the bar (Fig. 4.A) by inserting the stud
bolt (Fig. 4.B) in the groove (Fig. 4.C) and
push it towards the back of the machine body.
3. Check that chain tension adjuster pin
(Fig. 4.D) is fitted properly in the hole on
the bar; if it isn't, turn the chain tension
adjuster screw (Fig. 6.E) using a screwdriver
until the pin is completely inserted.
4. Tilt the machine to make it easier to wind
the chain around the drive sprocket (Fig. 5).
5. Mount the chain (Fig. 6.A) around the
drive sprocket (Fig. 6.B) and along
the bar guide (Fig. 6.C) being careful
to follow the sliding direction.
6. If the tip of the bar is equipped with a nose
sprocket, make sure the drive links are
correctly inserted in the sprocket rims (Fig. 7).
7. Refit the guard (Fig. 8.A), without
fully tightening the nut.
8. Turn the chain tension adjuster screw (Fig.
9.A) to achieve the desired tension (Fig. 10).
9. Raise the bar and tighten the guard nuts
securely using the wrench supplied (Fig. 9.A).

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 SAFETY BUTTON (ACTIVATION
/ DEACTIVATION DEVICE)
Press this button (Fig. 12.A)
to activate and deactivate the
machine's electrical circuit. The
relevant LED lights up (Fig. 12.B).
Direction in which
the chain runs
• One LED on: the machine's
electrical circuit is activated.
The machine is ready for use.
• Both LEDs on: the
machine is in action.
• Lights off: the electrical circuit is
completely deactivated (OFF).
IMPORTANT Do not keep
your finger on the button when
moving the machine to avoid
accidentally enabling the machine.
The "Attention" icon (Fig. 12.C)
lights up in case of mechanical
failure of the machine (see the
Troubleshooting table, par. 14).

5.2 THROTTLE TRIGGER LEVER

It allows the activation of the chain.
The activation of the throttle trigger lever (Fig.
13.A), can only be used if the throttle safety
lever is pressed simultaneously (Fig. 13.B).
The cutting means stops automatically
when the throttle safety lever is released.

5.3 IINTERLOCK LEVER

The throttle lock lever (Fig. 13.B) allows the
throttle trigger lever to be used (Fig. 13.A).

5.4 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 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.
EN - 8