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The power supply line must be equipped with current overload pro-
tection (e.g. thermal-magnetic cutout) and protection against indirect
contact (e.g. residual current circuit breaker).
The electrical power distribution board at the construction site must
conform to the requirements of EN 60439-4.
The size of the power cable conductors must be based on operating
current and length of the power line to prevent excessive voltage drops
(table 4).
Table 4
Model
220-230 V
7.8 A
Combi 250 VA
110 V
15.4 A
Check the integrity of the insulation and protective conductor of the elec-
trical supply.
Connect the machine plug to the electrical power supply and tighten the
mechanical retainer ring with IP67 protection rating.
The machine is now ready for operation.
Connect the mains power cable to the plug on the electrical panel.
It is compulsory to power the sawing machine using a differential switch
(230 V; current intensity 30 mA; max. cut-in time 20 µsec).
cable.
When the KIT has been installed, press the green ON button to be able
to start the sawing machine. An orange led will light up (differential pro-
tection on).
Press the black key TEST on the RCCB; the switch disconnects and the
orange led turns off.
After performing the TEST, press the ON key again to activate the
RCCB.
comprising two buttons: green for start, red for stop.
power failure, press the green button again to resume operation.
In the event of an emergency, press the red pushbutton to shut down the
machine and disconnect the plug from the power mains.
The RCCB is deactivated each time the power supply is disconnected.
Fill the water tank to the maximum level (approx. 36 litres).
Connect the machine to the power mains and start as described in pa-
ragraph 10.
to the diamond blade.
Rest the material to be cut on the cutting table against the stopper. De-
the required height, then fully tighten the handwheel. Make sure that
IMER INTERNATIONAL S.p.A.
COMBI 250 VA
1.5
2.5
4.0
0 ÷ 22
23 ÷ 36
37 ÷ 58
0 ÷ 11
12 ÷ 18
19 ÷ 30
sawing machine as described in paragraph 10. To proceed with cutting,
-
press the piece to be cut on the table with your hand and move the cutter
head gripping the handle and drawing it towards you. If the feed speed
is too fast in relation to the thickness and hardness of the material the
blade might stop turning. In this case, release the disk as quickly as
possible moving the cutter head away from you until the disk recovers
its nominal rotation speed. Resume cutting, adjusting the feed speed
according to the characteristics of the material.
red angle, retighten the handwheels, and proceed as described in the
point above.
Routine maintenance operations can also be performed by non-speciali-
sections of this manual are observed at all times.
The machine should be cleaned exclusively when it is stationary.
sidue in enclosed parts.
2. Ensure that the cooling water nozzles are not obstructed.
3. Above all the cooling water in the tank must be changed every day.
4. Do not use detergents or lubricants.
Clean the tank in the event of build-up of sediment on the base, or at le-
ast once a day. Failure to clean the tank could impair operation of the im-
mersion pump used for circulation of the diamond blade cooling water.
To clean the tank, disassemble from the machine, lock the head, hold it
by the arms and rinse with a direct water jet (this is to avoid direct con-
tact of the water with electrical parts), the proceed with manual cleaning
using cloths or brushes.
Take care not to damage cables when replacing the machine on the tank
Take care not to damage the pump when placing the machine on the
surface
reduced) clean the cooling water supply circuit. To do this, disassemble
in water.
Periodically clean the cooling water delivery line between the pump and
-
valve and blade guard using water.
The diamond blade is made of material that may be damaged when
subject to high temperatures, and therefore must be cooled during the
-
work phases.
To replace the blade, proceed as follows:
1. Block axial movement of the cutting head by means of the handwhe-
3. Loosen the locknut by rotating clockwise (left thread), using a 19 mm
wrench.
4. Move the cutting head forward slightly and incline to remove the blade
from its seat.
diamond blade. During disassembly, avoid use of tools that could dent
6. Insert the new blade proceeding in reverse order of the operation
described at point 4. Take special care to ensure correct direction of
rotation of the diamond blade.
7. Tighten the blade locknut fully down by rotating anticlockwise (left
thread), to a torque of 40 Nm.
- Always disconnect the power plug before changing the disk.
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