Telwin DIGITAL SUPERMIG 360 [7/132] Pagina 7

conductive dusts, corrosive vapours, humidity etc. will not be sucked into the machine. - Connect the G.R.A. to the welding machine using the cable supplied.

Leave at least 250mm free space around the welding machine. - Connect the water pipes to the quick-release couplings.

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- Switch on the G.R.A. following the procedure described in the handbook supplied

with the cooling unit.

WARNING! Position the welding machine on a flat surface with sufficient

WARNING: when the power supply outlet for the cooling unit is not used it is

carrying capacity for its weight, to prevent it from tipping or moving hazardously.

necessary to insert the corresponding plug supplied with the welding machine

Before making any electrical connection, make sure the rating data of the welding

machine correspond to the mains voltage and frequency available at the place of

WARNING! BEFORE STARTING THE OPERATIONS TO LOAD THE WIRE

installation.

MAKE SURE THE WELDING MACHINE IS SWITCHED OFF AND DISCONNECTED

The welding machine should only be connected to a power supply system with the

FROM THE MAIN POWER SUPPLY OUTLET.

neutral conductor connected to earth.

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5.4.2 Plug and outlet

INSERTING AND THREADING THE WIRE DO NOT WEAR PROTECTIVE GLOVES.

line. The table (TAB.1) shows the recommended delayed fuse sizes in amps, chosen

- Position the wire reel on the spindle, holding the end of the wire upwards; make sure

according to the max. nominal current supplied by the welding machine, and the

the tab for pulling the spindle is correctly seated in its hole (1a).

nominal voltage of the main power supply.

- Release the pressure counter-rollers and move them away from the lower rollers

(2a);

5.4.3 Voltage change (FIG. F)

- Make sure that the towing rollers is suited to the wire used (2b).

available power supply voltage.

- Re-position the counter-rollers, adjusting the pressure to an intermediate value, and

Reassemble the panel carefully using the appropriate screws.

make sure that the wire is correctly positioned in the groove of the lower rollers (3)

Warning! In the factory the machine is set at the highest voltage of the available

- Use the adjustment screw located at the centre of the spindle to apply a slight braking

range, e.g.

pressure on the spindle itself (1b).

U 400V Ü Voltage setting at the factory.

- Remove the nozzle and contact tip (4a).

system installed by the manufacturer ineffective with consequent serious risks

torch, release the button.

to persons (e.g. electric shock) and objects (e.g. fire).

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5.5 CONNECTION OF THE WELDING CABLES (FIG. G)

WARNING! During these operations the wire is live and subject to mechanical

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stress; therefore if adequate precautions are not taken the wire could cause

WARNING! BEFORE MAKING THE FOLLOWING CONNECTIONS MAKE

Table (TAB. 1) gives the recommended values for the welding cables (in mm )

- Keep the torch away from the gas bottle.

depending on the maximum current supplied by the welding machine.

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- Re-fit the contact tip and the nozzle onto the torch (4b).

- Check that wire feed is regular; set the roller and spindle braking pressure to the

5.5.1 Connection to the gas bottle

minimum possible values making sure that the wire does not slide in the groove and

Gas bottle can be loaded on welding machine bottle support platform: max 60 kg.

when feed is halted the loops of wire are not loosened by excessive reel inertia.

- Connect the gas inlet pipe to the pressure-reducing valve and tighten the band

5.7 LOADING THE WIRE REEL ONTO THE SPOOL GUN (Fig. L)

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- Loosen the adjustment ring nut on the pressure-reducing valve before opening the

WARNING! BEFORE STARTING THE OPERATIONS TO LOAD THE WIRE MAKE

SURE THE WELDING MACHINE IS SWITCHED OFF AND DISCONNECTED FROM

5.5.2 Connection to the wire feeder

THE MAIN POWER SUPPLY OR THAT THE SPOOL GUN IS DISCONNECTED

MAKE SURE THE WIRE PULLER ROLLERS, THE WIRE GUIDE HOSE AND THE

SPOOL GUN CONTACT TUBE HAVE SUITABLE DIAMETERS CORRESPONDING

- Connect the gas pipe from the pressure-reducing valve on the bottle and lock it with

TO THAT OF THE WIRE TO BE USED AND MAKE SURE THEY ARE ASSEMBLED

CORRECTLY. DO NOT WEAR PROTECTIVE GLOVES WHEN THREADING IN THE

WIRE.

5.5.3 Connecting the welding current return cable

- Remove the cover by undoing the appropriate screw (1).

5.5.4 Connecting the torch

- Engage the torch with its dedicated connector by tightening the locking ring

- Reposition the counter-roller, adjusting the pressure to an intermediate value and

manually as far down as it will go.

- Prepare the wire for loading the first time by dismantling the nozzle and the contact

- Brake the reel holder slightly by adjusting the appropriate screw.

tip to ease its exit.

- With the Spool gun connected, switch on the machine, press the spool gun button

- Insert the control cable connector into its socket. The welding machine will detect

and wait for the end of the wire to pass completely through the wire guide hose and

the Spool gun automatically.

for 10-15 cm to come out of the front of the torch, release the torch button.

5.5.6 Warnings

5.8 REPLACING THE LINER IN THE TORCH (FIG. M)

- Turn the welding cable connectors right down into the quick connections (if present),

Before proceeding to replace the hose, lay out the torch cable straight without any

to ensure a perfect electrical contact; otherwise the connectors themselves will