3
IMER U.S.A. Inc.
COMBI 350
The machine must never be used in environments
subject to risks of explosion and/or underground sites.
- IMER saws may only be used when fitted with all required safety devices
which must be in perfect condition.
- Never use makeshift and/or faulty power cables.
- Make electrical connections on the construction site where they will
not be subject to damage. Never stand the saw on power supply cables.
- Lay power cables where they are not subject to risk of damage or
contact of connectors with water. Only use connectors fitted with water-
spray protection (IP55).
- Repairs to electrical installations must only be carried out by qualified
technicians. Always ensure that the machine is disconnected from the
power supply and is completely immobile during repairs and maintenance
operations.
- Connect the machine to a suitable equipotential earthing
plant on the construction site with wire braid of minimum
16 mm² section. The connection point is identified by a
screw welded to the frame (see Fig.1), and on the rating
plate by the earthing symbol.
- Stop the saw only by means of the main switch.
- The symbol shown on the label (see left) indicates the
warning ENSURE ALL PROTECTION DEVICES ARE
INSTALLED AND IN PERFECT CONDITION BEFORE
SWITCHING ON THE MACHINE
8. ELECTRICAL SAFETY
IMER saws comply with EN 60204-1; and are fitted with:
- protection device against automatic re-start after power failure;
- Short-circuit cutout device;
- Motor overload cutout switch.
9. TRANSPORTATION (Ref. Fig.2)
WARNING! Always remove the plug from the power socket
before moving the saw, and lock head support carriage movement
by means of the relative knob (ref. 3). To transport the machine use
slinging equipment with 4 rope legs, fixing the hooks to the relative
attachments.
10. INSTALLATION (Ref. Fig.2)
Fix the hooks to the relative attachments on the machine and lift the
machine out of its package.
- Unlock the legs by sliding out split pins (ref.2) and pins (ref.1).
- Lock the legs at working height. Refit the pins in the leg supports and
insert the split pins.
- Install the machine on a completely even and stable surface.
11. ELECTRICAL CONNECTION
Ensure that there is an overload cutout device fitted up-
line on the power line. If necessary, install an IMER quick connect
residual current circuit breaker (RCCB) (code no. 1169245 available
in kit form for 230V machines).
Ensure that the mains voltage corresponds to that specified for the
machine: 230V/60Hz - 115V/60Hz.
All power supply installations must comply with CEI 64-
8 standards (harmonised document CENELEC HD384).
The electrical power cable must be suitably sized to avoid voltage 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 mm² are sufficient for lengths up to 160
ft. 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.
12. 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.
13. 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 procedure.
14. 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.
15. USE
Leave a space of 5 ft 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.
- 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.
15.1 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.
15.2 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
