- Make sure the electrical system power supply complies with the values written on
the rating nameplate.
- The power supply voltage must not differ from that written on the nameplate
by ±5%.
- The connection to the electric mains must be prepared subject to current standards
in force in the country in which the appliance is used.
- The power socket used for the appliance must have an earth wire, adequate fuse
and must be protected by a differential circuit breaker with tripping sensitivity no
higher than 30 mA.
- Plug the power cable into the mains.
- With the appliance turned off, check the grinding wheel prole using the dedicated
template ; if necessary, dress the wheel to restore the correct prole.
Wear personal protection equipment.
- Start the grinder by turning the switch to position “1”.
- Once started, the lamp lights up to illuminate the sharpening area.
- Prole the grinding wheel with the dressing brick, always working with extreme
caution, holding it rmly and securely .
- Stop the appliance and check if the prole is correct using the template .
Contact with the grinding wheel while it spins at high speed may cause
burning and abrasions.
- Once you have established the type of chain to be sharpened, look-up the adjust-
ment angles (vise and arm) in the chain chart (columns C/D/E).
- Loosen the knob M20.
- Turn the vise clockwise.
- Position the reference mark on the vise by the desired angle.
- Tighten knob M20 again.
- Loosen the knob M20.
- Turn the vise counter clockwise.
- Position the reference mark on the vise by the desired angle.
- Tighten knob M20 again.
- Loosen the knob at the back M23 and turn the arm towards the
right. Position the reference mark by the angle desired.
- Tighten knob M23 again.
- Find the setting angles as just illustrated.
- Set another sharpening position: the down angle. To nd out which chains require
this setting, consult column in the chain chart.
- Loosen knob M20.
- Move the vise towards the operator until the reference mark
matches the relevant value on the scale (see chain table).
- Turn the vise clockwise.
- Position the reference mark of the vise by the desired angle.
- Tighten knob M20 again.
- Loosen knob M20.
- Move the vise towards the opposite side of the operator until
the reference mark matches the relevant value on the scale
(see chain table).
- Turn the vise counter clockwise.
- Position the reference mark of the vise by the angle desired.
- Tighten knob M20 again.
- Loosen the handle at the back M23 and turn the arm towards
the right. Position the reference mark on the angle desired.
- Tighten knob M23 again.
- Find the gauge of the drive link (GAUGE column on chain table)
- Turn selector so that the reference mark matches the relevant gauge of the
drive link with reference on the vise
- All the gauges of chains presently commercialized are indicated on selector
- Put the chain in the vise.
- Take the cutter up against the chain blocking device A29.
- Turn the knob P29 to position the blocking unit A29 correctly compared to the cutter.
- When you lower the arm, the chain blocking system is hydraulically
operated. In the following adjustment phases, raise the arm whenever you work
on the chain positioning knob.
- Take the grinding wheel onto the cutter to be sharpened, pulling the arm downwards.
The chain will be blocked.
- Raise the arm so that the chain runs freely.
- Turn the knob P30 to move the chain so that the cutter cutting edge skims the
grinding wheel .
- At this stage, raise the arm and screw the knob P30 to move the cutter to be
sharpened further forwards.
Blunter the cutters, greater must be this forward movement. Vice versa, for cutters
that are not too blunt, simply grind just a slight amount of material.
- Turn knob P31 to adjust the cutter sharpening depth. The grinding wheel should
skim the bottom of the cutter vertically .
- Wear personal protection equipment when sharpening.
- All adjustments must be made with the motor switched off and the grinding
wheel completely stopped.
- In the case of accidental impact or collision of the wheel during the shar-
pening process, follow the instructions given in the “GRINDING WHEEL
WARNINGS” section.
- Clean the chain before sharpening it.
- To avoid overloading the motor excessively and to avoid damaging the chain cut-
ters , grind minimum quantities of material and do not stop along the same cutter
as this could burn the cutting edge.
- Sharpen all the cutters on the same side and then adjust the vise as explained in
the previous sections, then sharpen the cutters on the opposite side.
- Do not use cooling liquids during the sharpening process.
- The vise closes automatically during this procedure and the chain is blocked.
- Turn the appliance on using the switch, press button I33 to release the arm and
sharpen the cutter by lowering the arm-motor unit .
- Once you have sharpened the chain, raise the arm.
- Run the chain forward to position the next cutter to be sharpened, making sure the
cutter rests on the chain stop.
- Lower the arm again to start sharpening.
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