10
MASONRY 350
IMER INTERNATIONAL S.p.A.
drops. Cable drums (with collector rings) must not be used.
Cable dimensions will vary according to the start-up current and
length of cable. In general cable sizes of 4 x 4 mm² are sufficient for
lengths up to 50 metres. After installation always carry out voltage
testing under load conditions, both at start-up and during operation.
During operation, voltage drops must never exceed 5%. In the case
of longer cables or a power supply network subject to variations,
use cables with a section of at least 6 mm². Cables used on
construction sites must be fitted with suitable external sheathing
that is resistant to wear, crushing and extreme weather conditions.
11. MACHINE START-UP
Before connecting the machine to the power supply:
1 - Ensure that the metal structure is connected to an earthing
plant as indicated in Section 7 Safety Precautions.
2 - Ensure that the tank contains sufficient cooling water.
3 - Ensure that the power circuit corresponds to the requirements
as indicated in Section 11 Electrical connections
4 - Connect the machine to the power supply
5 - Set the switch to 1 and when the motor is started return to
position 0 after ensuring that cooling water reaches the blade.
6 - Check that the direction of blade rotation corresponds to that
indicated by the arrow on the blade guard.
7 - If all is in order, proceed with cutting.
12. EMERGENCY STOP
-In the event of emergency,stop the machine by
pressing the stop control switch.
- The motor is fitted with an overload cutout device.
If the motor overheats, it will automatically shut down. Allow
motor to cool before re-starting.
- The motor is protected against automatic re-start
after interruptions due to power failure. To resume operation,
when power is re-connected, repeat machine start-up proce-
dure.
13. BLADE INSTALLATION (Ref.Fig.3)
By means of a hex wrench no.10, remove front screws (ref.1) and
loosen the other two screws (ref.2) which secure the blade guard.
Turn the guard clockwise to gain access to the securing screw
(ref.4). Use a hex wrench no. 13 to remove the screw (turn anti-
clockwise). Remove the mobile flange and check that the flanges,
disc shaft and blade are not damaged.
- Never use worn blades.
- Only use blades that are designed for the number of
revolutions indicated on the machine rating plate.
- Check that blade rotation corresponds to that
indicated on the blade guard.
Centre the blade against the fixed flange, position the mobile flange
and tighten the securing screw by means of a hex wrench no. 13
(turn clockwise). Return the guard to its original position and lock
by means of screws (ref.1 and 2).
- Ensure that the blade guard is locked securely into
position.
- WARNING! An incorrectly installed blade, or a screw
insufficiently tightened can provoke damage to the machine
or injury to persons.
- Note that the blade must have an external diameter
of 350 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.
14. USE
Leave a space of 150 cm around the machine to ope-
rate 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.
- Ensure that blade rotation corresponds to the
indications on the blade guard.
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
The machine is protected against overload.
WARNING! Always switch off the machine before
carrying out blade adjustment.
14.1 VERTICAL BLADE MOVEMENT (Ref. Fig. 4)
To raise or lower the blade, slacken knob (ref.2) by turning it anti-
clockwise. Set blade support (ref.1) to the required position and
lock by tightening the knob fully (ref.2).
Ensure that the locking knob is tightened fully before
starting work.
14.2 BLADE POSITIONING FOR 45° CUTS (Ref.Fig.5)
Slacken knob (ref.1); the blade support arm (ref.2) is unlocked and
so can be set to its limit position, i.e. inclined at 45° with respect to
the worktable. Tighten the knob fully to lock into position.
To bring the blade back to the vertical position (pos.0) carry out the
above operations in reverse order.
Ensure that the locking knob (ref.1) is tightened fully
before starting work.
14.3 CUTTING
- Before cutting, check that the blade is aligned with
the cutting line and that the locking knobs are tightened fully.
Place the workpiece on the worktable snugly against the fence and
start up the motor.
Wait until the water reaches the blade and begin cutting.
Horizontal cutting movement is carried out by pulling the carriage
towards the operator by means of the relative handle (ref.1 fig.6).
As cutting thickness increases, the blade is subjected
to greater stress. To avoid overloading the motor, the operator
should continually check blade feed speed. The speed will also
depend on the characteristics of the material being cut
(hardness, toughness etc.).
14.3.1 CUTS WITH BLADE LOWERED FROM ABOVE
(Ref. Fig.8)
Bring the blade support to its highest position and lock. Position
the workpiece on the worktable. Start the machine, unlock the blade
support and begin vertical cutting until the blade reaches its lowest
point. Lock the support once more and proceed with horizontal
cutting.
14.3.1 BLADE CHANGE
To change the blade refer to section
14. BLADE INSTALLATION.
- Do not use disks for wood!
- Do not use segmented diamond discs with slots of
over 5 mm.
15. MAINTENANCE
- WARNING! Always switch the machine off and
remove the plug from the power socket before carrying out
any maintenance operations .
- Always check that the protective guards are in the
correct position and in perfect condition.
- As there is the continuous risk of inadvertent damage
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