IMER MASONRY 750 PLUS Manual De Operación, Mantenimiento, Repuestos página 5

4.2. For the machine with 400V/50Hz motor: Check that the
direction of rotation of the blade is in accordance with the
arrow on the guard.
- Otherwise, turn the selector on the electric plug with
a screwdriver. Check again that the direction of rotation of
the blade is in accordance with the arrow on the guard
5. Adjust the cooling water flow turning the special tap on the
back of the machine next to the cutting head (no dry cuts
should be made).
6. If everything is in order, the work can begin.
12 STOPPING THE SAWING MACHINE
- The sawing machine can be stopped by pressing
the button on the electrical panel (ref7 - Fig. 1).
To start the machine again, turn the button and then press
the start button (ref7 - Fig. 1).
13 DISC ASSEMBLY
- The disc must be assembled after stopping the
machine and disconnected the power supply.
1. Remove the water pipe after having loosened the fastening
element (ref. 4Fig. 3).
2. Unscrew the three screws that fasten the movable part of
the disc guard using the special key supplied (ref. 3, Fig. 3).
3. Loosen the lock nut (ref. 1, Fig. 3) turning it clockwise (left
thread).
4. Remove the movable flange (ref. 2, Fig. 3). Check for
damage on flanges, disc shaft and disc.
- Do not use damaged discs, with missing sectors.
- Use only discs that are suitable for the rpm shown
on the machine data plate.
- Check that the direction of rotation of the disc is the
same as marked on the disc guard.
5. Center the disc on the fixed flange, position the movable
flange (ref. 2, Fig. 3) and correctly lock the locknut (ref. 1, Fig.
3) of the disc turning it anticlockwise (left thread).
6. Refit the movable part of the disc housing, fastening it with
the respective screws (ref. 3, Fig. 3).
7. Re-insert the water pipe and tighten the fastening element
until the pipe is locked (ref. 4, Fig. 3
- Check that the disc housing is well secured.
- An incorrectly assembled disc can cause damage to
the machine and to people.
- Note that the disc must have external diameter of
750 mm, central hole diameter of 25.4 mm and maximum
thickness of 4 mm.
- Make certain that the disc to be used is suitable for
the material to be cut.
- It is forbidden to use wooden discs.
14 USE
- Leave at least 1.5 m of free space around the
machine to operate safely.
• Use the machine within the temperature range 0 - 40 °C.
• Do not allow anyone else to remain in the vicinity of the
machine during cutting.
IMER INTERNATIONAL S.p.A
• Do not use the machine in areas exposed to the risk of fire.
The cutting process may generate sparks, which could cause
fires or explosions.
• Transport and position the machine only after disconnecting it
from the power supply. • Always make certain that the disc is not in contact with anything
before starting the motor.
- Check that the disc guard is in place.
• Before starting work, fill the tank with water. Restore the level
during use, when it becomes necessary. The pump must
always remain submerged.
• Insert the power plug.
- It is absolutely forbidden to remove the guards of
the machine.
- The electric motor is protected against thermal
overload: this protection intervenes stopping the machine,
after which it is necessary to wait for the time necessary
to the thermal device to cool down before it is possible to
restart the machine.
14.1 Vertical movement of the disc
- All disc adjustment operations must be carried out
with the saw machine off and disconnected power supply.
To raise or lower the disc, turn the lever (ref. 15, Fig. 1) to the
desired height from the cutting table and tighten the locking
lever (ref. 16, Fig. 1).
- Make certain that the locking knob is properly
tightened before starting the work.
14.2 Cutting
During cutting operations it is mandatory to place both hands
on the push handles of the trolley (ref. 17, Fig. 1)
It is also mandatory to wear the necessary personal protective
equipment such as:
- gloves
- eye protection
- earphones for noise protection
- Check the alignment of the disc with the cutting
line.
1. Place the piece to be cut on the workpiece trolley (ref. 3,
Fig. 1), resting firmly against the fixed stop.
2. Start the motor.
3. Wait until the water reaches the disc.
4. Make sure that nothing is in the cutting area that can hinder
the cutting phase
5. Start cutting.
6. The horizontal cutting movement is achieved by manually
moving the workpiece trolley towards the disc.
- A greater effort is required to the disc for cutting a
workpiece with greater height. Therefore, in order not to
overload the motor, the operator must adjust the carriage
speed. This speed also depends on the characteristics of
the material to be cut (hardness, toughness, etc.).
14.3 Cut from above
Unlock the cutting head acting on the locking lever (ref. 16 Fig.
1), position the piece to be cut, start the sawing machine and
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