GYS HEAVYMIG 350-4 Manuel D'utilisation page 12

(See diagram (16))
- Contact Tip: Use the specific Aluminium contact tip corresponding to the diameter of the wire.
- Drive rollers: Use specific drive rollers to weld with aluminium wire.
REEL AND TORCH ASSEMBLY (FIG. 3)
• Position the reel on to the support taking care of the pin (1). To use with 5kg (Ø200mm) wire reels requires use of
reel adaptor (ref. 042889).
• Adjust the reel break (2) to avoid the reel movement tangling the wire when welding stops. Then tighten the plastic
screw (3) firmly.
• For the first use :
- Release the fixing screw of the wire guide (5)
- Place the rollers, and tighten the screws (6).
- Place the wire guide (7) as close as possible to the roller but without touching it, then tighten the fixing screw.
• To select the adjustment of the drive rollers (8), bend the wire where it comes out of the nozzle to stop it, and then
start the motor. Tighten the knob whilst pressing the trigger until the wire starts to move. The setting is correct when
the guide roller slides over the wire, even when it is blocked at the end of the torch.
NOTE: When the trigger is pulled and without any contact detected within 4s, the HEAVYMIG will automatically switch
to the 'fast forward' mode until the trigger is released. There is no gas during this operation.
WARNING: The 'fast forward' mode use current in the wire; avoid any contact with any metallic part around.
GAS COUPLING
Fit the regulator/flowmeter to the gas bottle, and then fit the gas pipe to the connector (see (10), FIG-2 for HEAVYMIG
350-4). To avoid gas leaks, use the collars provided in the accessories box.
LIQUID COOLING (HEAVYMIG 450 WS) (FIG-2) & THERMAL PROTECTION
Connect the red and blue wire of the connecting harness from the generator (11) to the separate wire feeder (see WS-
4L/W5S-4L user manual)
Fill the tank (12) up to its maximum (5,5L). The CORAGARD CS330 cooling liquid (or equivalent), recommended
by JBDC, must be used (more information in the website: www.aqua-concept-gmbh.eu). The use of any other cooling
liquid, and especially the standard automobile liquid, can lead by electrolysis effect, to the accumulation of dumps in the
cooling system, damaging it and even more by blocking the circuit.
Any damage caused to the machine by the use of another cooling liquid will not be taken under warranty.
The HEAVYMIG 450 WS is not recommended to be used by an air cooled torch.
If anyway you want to use an air cooled torch, a by-pass is supplied with the unit. Connect it between
the red and blue cables. If you don't respect this rule, the pump will be damaged, and the repair will not
be taken under warranty.
HEAVYMIG 450 WS: NEVER USE YOUR UNIT WITHOUT COOLING LIQUID
when the pump is working. Ensure liquid is at least minimum level (gauge at back of machine)
Failure to adhere to this may result in irreparable damage to the cooling system, and machine.
• Always respect the basic rules of welding.
• Do not block/cover the ventilation holes of the machine.
• Leave the device plugged in after welding to allow proper cooling down.
• Thermal protection: The LED(8) switches on when the unit is on safety mode. The cooling time (forced ventilation) is
by cycle of 10 minutes for the 350-4 and 20 minutes (forced ventilation + pump) for the HEAVYMIG 350 GR/450 GR/450
WS depending on the external temperature.
• Ventilation: the fan is only active during the welding and the cooling cycles.
DUTY CYCLE & WELDING ENVIRONMENT IN USE
• The welding unit describes an output characteristic of "constant current" type. The duty cycles following the standard
EN60974-1 (at 40°C on a 10mn cycle) are indicated in the table below:
X / 60974-1 @ 40°C (T cycle = 10 min)
HEAVYMIG 350-4 / 350 GR
12
HEAVYMIG 350-4 / 350 GR / 450 GR / 450 WS
50% @ 350 A
I max 60% (T cycle = 10 min)
320 A
EN
100% (T cycle = 10 min)
260 A