Checking The Chain Tension; Assembly Of Pruner Device; Extension Of The Pruner Device; Removing The Pruner Device - ST MP 500 Li 48 Manual De Instrucciones

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. 6).
4. Check that chain tension adjuster pin
(Fig. 5.C) is inserted correctly in the
hole on the bar; if it isn't, turn the chain
tension adjuster screw (Fig. 5.D), until
the pin is completely inserted.
5. Replace the guard without
fully tightening the knob.
6. Turn the chain tension adjuster
screw (Fig. 5.D) to achieve the
desired tension (Fig. 7).
7. Raise the bar and tighten the
knob (1) securely (Fig. 8.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. 7)

4.3 ASSEMBLY OF PRUNER DEVICE

Perform all operations after
removing the battery.
• Insert the control rod (Fig. 9.A) in
the pruner device (Fig. 9.B).
• Slide the collar (Fig. 9.C) upwards and
turn it clockwise until it is fully tightened.
Periodically check that the
joints are well tightened.

4.4 EXTENSION OF THE PRUNER DEVICE

Loosen the knob (Fig. 10.A) following the
direction of the arrow - open padlock;
• pull or push the rod (Fig. 10.B) until it
reaches the desired length;
• when the adjustment is complete, tighten
the knob following the direction
of the arrow - closed padlock.
Periodically check that the
joints are well tightened.

4.5 REMOVING THE PRUNER DEVICE

• To remove the pruner device (Fig. 9.B),
place the control rod (Fig. 9.A) on the
ground, loosen the collar (Fig. 9.C) and
disassemble the pruner device.
Direction in which
the chain runs
4.6 BATTERY BACKPACK
SETTING (IF PROVIDED)
The battery backpack comes already
assembled (Fig.1.M) and can be
detached from the harness holder
(Fig. 11) and carried by hand.
To detach the battery pack, press
the two top buttons (Fig. 11.A).
The battery housings are located on
both sides of the backpack (Fig. 12)
On the right side of the backpack there are:
• cable socket (Fig. 13.A)
• a battery selector switch (fig. 13.B)
• a USB port for charging other devices
(e.g. mobile phones) (Fig. 13.C)
In order to avoid the presence of loose
cables, there are slots positioned on
both sides and in the back, which can be
used to run the power cable through.

5. CONTROLS

5.1 SAFETY BUTTON (ACTIVATION
/ DEACTIVATION DEVICE)
By pressing this button (Fig. 14.C)
the machine's electrical circuit
is activated and deactivated
and the corresponding LED
lights up (Fig. 14.D)
One LED on: the machine's
electrical circuit is activated.
The machine is ready for use.
Both LEDs on: the machine is in action.
LED off: the electrical circuit
is completely deactivated.
IMPORTANT Do not keep
your finger on the button when
moving the machine to avoid
accidentally enabling the machine.
The "Warning" icon (Fig. 14.E)
lights up in case of mechanical
failure of the machine (see the
Troubleshooting table, par. 14).
EN - 8