IMER COMBI 250 V Operating, Maintenance, Spare Parts Manual page 4

9. ELECTRICAL CONNECTION
- Ensure that voltage corresponds to machine
dataplate specifications.
Connect the machine to an efficient earthing system.
The size of the power cable wires must be based on
operating current and length of the power line to prevent
excessive voltage drops (ref.Table 4).
C om bi250 V - Tab. 4
V 115
C able length (m )
I= 14.4 A
C able (m m ²)
-
Ensure that the electric line has a suitable
differential overload switch(RCD)(GFCI-USA).
Connect the saw plug to the mains .
- The saw is now ready for operation.
11. SAW START-UP
Connect the mains power cable to the plug on the electrical
panel.
Then start the saw by means of the switch on the handle
(ref.
P fig.6) , comprising two buttons: green for start, red for
stop.
The switch is fitted with low voltage protection; in the event
of accidental 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.
THERMAL CUTOUT PROTECTION:
- The electric motor is protected against overload
by a thermal cutout; in the event of overheating this
device shuts down the motor.
Cool the motor and restart by means the main switch
on the handle (ref.P fig. 6).
12 . MACHINE USE
Operation
The correct side for the operator is shown in fig. 3 ref X.
Fill the water tank to the maximum level (approx. 42 litres).
Connect the machine to the power mains and start as
described in paragraph 11.
Open the valve (ref.V fig.7) and ensure sufficient flow of
cooling water to the diamond blade.
Cutting
Place the material to be cut on the cutting surface against the
fence at the required angle using a protractor.
Adjust the height of the cutting head by means of the
handwheel (ref. R fig. 6).
Ensure that the handwheels for angled cuts (ref. L fig. 7)
and tightened fully down.
Start the saw as described in paragraph 11.
Proceed with cutting moving the saw head by means of the
handle.
In the event of blade rotation shutdown due to excessive
force, free the disk by moving it forwards and wait for the
saw to reach normal operating speed before resuming
operation.
Angled cuts
Loosen the handwheels (ref.L fig. 7), set the cutting head at
the required angle, retighten the handwheels, and proceed
as described in the point above.
Ensure that the tank is kept full during all work phases and in
IMER U.S.A. Inc.
COMBI 250 V
0 ÷ 12 13 ÷ 20 21 ÷ 32
1.5 2.5 4
4
the event of prolonged work intervals replace water
regularly and remove all processing residue.
Press the workpiece by hand onto the cutting surface.
Apply sufficient pressure on the handle to move the cutting
head without blocking the blade.
13 . Maintenance
13.1 Premise
Routine maintenance operations can also be performed by
non-specialised personnel provided that all safety standards
specified in the relative sections of this manual are observed
at all times.
13.2 Machine cleaning
The machine should be cleaned exclusively when it is
stationary.
- All power switches must be set to "0" and plugs
must be disconnected from the mains.
♦Never use compressed air; this could cause infiltration of
dust or residue in enclosed parts.
♦Ensure that the cooling water nozzles are not obstructed.
♦Above all the cooling water in the tank must be changed
every day.
♦Recommended product for cleaning and lubricating the
mechanical parts of the saw: WD40
13.3 Waste disposal
As regards disposal of processing waste observe all current
legislation in the country of use.
13.4 Repairs
Repairs to the electrical installation must be performed
exclusively by specialised personnel. Use exclusively
original IMER spare parts; modifications to parts are strictly
prohibited. The special design of the COMBI 250 V ensures
that no other maintenance other than as specified above is
required.
Ensure that the contacts of the power plug and plug-switch
assembly are efficient. If oxidation is detected, clean
immediately
13.5 Cleaning the tank
Clean the tank in the event of build-up of sediment on the
base, or at least once a day. Failure to clean the tank could
impair operation of the immersion pump used for circulation
of the diamond blade cooling water.
13.6 Blade replacement
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
handwheels (ref. O fig. 7).
2. Disassemble the front guard (ref.D fig.4).
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.
5 . Ensure that there are no foreign objects between the
fixing flange and diamond blade. During disassembly, avoid
use of tools that could dent or deform the flange.
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.
13.7 Cleaning the cooling water supply circuit
At regular intervals (or when the flow rate of the blade
cooling water is reduced) clean the cooling water supply
circuit. To do this, disassemble the delivery nozzle (ref. S fig.
4) located inside the blade guard and clean in water.
Periodically clean the cooling water delivery line between the
pump and valve, (ref.V fig. 7) and blade guard using water.