12
MASONRY 250
IMER INTERNATIONAL S.p.A.
GB
GB
9. TRANSPORTATION
- WARNING! Before moving the saw, lock head
support carriage movement by means of the relative knob
(Ref. 11, fig. 1).
The saw weights 53 Kg and can be moved by means of the
side handles on the tank.
Always empty the tank before moving the machine.
10. INSTALLATION
The machine must be placed on a smooth surface that is at least
as large as the tank, with the saw on the relative stand
(Ref. 11,
fig. 1).The correct side for the operator is as shown in Fig.1
position X.
-
Ensure that the stand is positioned on the relative
inserts on the tank base and thus secured.
Always remove the plug from the mains power before
moving the machine.
11. ELECTRICAL CONNECTION
Connect the mains power cable to the plug on the electrical
panel.
RESIDUAL CURRENT CIRCUIT PROTECTION
(KIT 230V-P/N.1169245 - KIT 110V-P/N.1169249):
It’s obligatory to fit the saw with the differential
switch kit P/N 1169249 on the feeding cable.
To start up the saw, press the green ON key on the RCCB
switch and an orange led illuminates (RCCB protection on).
RESIDUAL CURRENT CIRCUIT BREAKER TEST:
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.
-
Carry out the RCCB TEST before each machine start-
up.
Then start the saw by support of the switch on the handle,
comprising two buttons: green for start, red for stop.
The RCCB is deactivated each time the power supply is
disconnected
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 of the RCCB
switch and the main switch on the handle .
The machine is protected against short circuits by a
magnetic protection inside the RCCB.
-Ensure that the mains voltage corresponds to that specified
for the machine:
230V/50Hz.
The electrical power cable must
be suitably sized to avoid voltage drops. Cable drums must not
be used.
Cables used on construction sites must be fitted with suitable
external sheathing that is resistant to wear, crushing and
extreme weather conditions (for example H07RN-F).
- All power supply installations must comply with
CEI 64-8 standards (harmonised document CENELEC
HD384).
12. MACHINE START-UP
Before connecting the machine to the power supply:
1 - Ensure that the tank contains sufficient cooling water.
2-Connect the power supply cable to the electric panel plug.
3-Turn on the concrete mixer using the switch located on the
electric control panel (ref. 7, fig. 1) comprising two buttons: the
green one switches on the machine, while the red one switches
it off. The switch has minimum voltage protection: after a power
failure or accidental power loss, push the green start button to
start the machine up again.
4 - Check that the direction of blade rotation corresponds to that
indicated by the arrow on the blade guard.
Open the valve and ensure sufficient flow of cooling water to
the diamond blade.
5 - Never dry cut material or cut when cooling water levels
are low.
6 - If all is in order, proceed with cutting.
13. EMERGENCY STOP
- In case of an emergency, stop the machine by
pressing the red stop button (extended), then disconnect
the plug from the power supply socket.
- The motor is protected against automatic re-start
after interruptions due to power failure. To resume
operation, when power is re-connected, press the green
switch on the overload cutout device.
14. BLADE INSTALLATION
Always remove the plug from the mains power.
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.11 fig. 1).
2.Stop the blade rotation fitting the shaft blocking pin (ref. 1 fig.
5) in the hole of the belt cover (ref. 2 fig. 5) rotating the blade
till the pin has entered the hole in the shaft.
Verify that the blade doesn’t turn, otherwise repeat the
operation again.
3. Disassemble the front guard.
4. Loosen the locknut by rotating clockwise (left thread),
using a 19 mm wrench.
5. Move the cutting head forward slightly and incline to
remove the blade from its seat.
6. 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.
7. 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.
8. Tighten the blade locknut fully down by rotating
anticlockwise (left thread), to a torque of 40 Nm
.
9.Take the shaft blocking pin off the belt cover.
10.Verify the blade turn freely.
11.Connect the plug again.
- Note that the blade must have an external diameter
of 250 mm, a central hole diameter of 25.4 mm and max.
thickness of 3 mm.
- Check that the blade to be used is suitable for the
material to be cut.
- Never dry cut material or cut when cooling
water levels are low.
- Do not use blades for wood!(fig. 6).
15. USE
- Leave a space of 150 cm around the
machine to operate in full safety.
- Do not allow other persons to approach the
machine during cutting.
- Never use the machine in fire-risk areas. Sparks
can cause fire or explosions.
- Make sure that the machine is switched off before positioning or
handling.
- Always ensure that the blade is free of any contact before start-
up.
- Ensure correct installation of all protective devices.
Before starting work, fill the water tank. Top up during operation
whenever necessary: N.B.
the pump suction hose must
always remain immersed in water
.
- Insert the plug in the power socket.
- WARNING! For safety purposes the removal of
protective guards from the machine is strictly prohibited
- WARNING! Always switch off the machine before
Fig. 6
