General Description; Electricity Supply; Device Presentation - GYS HEAVYMIG 350-4 Manuel D'utilisation

HEAVYMIG 350-4 / 350 GR / 450 GR / 450 WS
This manual contains safety and operating instructions. Read it carefully before using the device for the first time and
keep it in a safe place for future reference.

GENERAL DESCRIPTION

Thank you for choosing this JBDC product; please read this instruction manual carefully before installing and using the
product, and keep in a safe place for future reference.
The HEAVYMIG are ventilated semi-automatic welding units (MIG or MAG). Adjustment is quick and easy with their «
synergic wire speed » function. They work on a 400V three-phase power supply.
In order to function HEAVYMIG:
• 350 GR requires separate wire feeder WS-4R (ref. 031289) or W5S-4L (ref 032835) and a connection cable.
• 450 GR requires separate wire feeder WS-4R (ref. 031289) or W5S-4L (ref 032835) and a connection cable.
• 450 WS requires separate wire feeder WS-4L (ref. 033207) or W5S-4L (ref 032835) and a connection cable.

ELECTRICITY SUPPLY

The absorbed current (I1eff) is indicated on the device, for use at maximum settings. Check that the power supply and
its protection (fuse and/or circuit breaker) are compatible with the current needed during use.
The device must be placed in such way that the power socket is always accessible.
Do not use an extension cord which has a wire section smaller than 4 mm².
These units are supplied with a 32A plug type EEC7/7. They should be plugged in to a 400 V (3PH) power socket WITH
earth and protected by a circuit breaker (32A and 1 differential 30Ma.)

DEVICE PRESENTATION

Put the rubber mat (only for the HEAVYMIG 350-4) and the four ring eyes (with their lock washers). The gas bottle
needs to be fastened with 2 chains in the holes at the back of the machine. Attention: Fasten correctly the bottle. You
have also holes to pass a strap on (not included).
1 - On – Off switch
2 - Power settings – 2 switches with 9 positions to adjust
the welding voltage output
3 - Control panel – Welding settings
4 - European standard torch connection
5 - Power cable (5m)
6 - Earth cable
7 - Gas bottle support (max 1 bottle of 10m3)
SEMI-AUTOMATIC WELDING FOR STEEL / STAINLESS STEEL (MAG MODE) (FIG. 2-A)
The HEAVYMIG units are equipped originally to work on 1mm steel wire (original drive rollers Ø 1/1.2 steel/stainless
steel).
Make sure that drive rollers, liner and contact tube are adapted to your wire diameter.
For Steel or Stainless Steel, you will need to use specific gas - Argon + CO2 (Ar + CO2). The proportion of CO2 will vary
depending on usage. The gas flow for steel is between 15 and 25L / min depending on the environment and experience
of the welder.
SEMI-AUTOMATIC WELDING FOR ALUMINIUM (MIG MODE) (FIG. 2-B)
This welding unit can weld aluminium wires from 1mm.
To weld aluminium, neutral gas "pure Argon" (AR) is required. When choosing gas, ask a gas distributor for advice.
The gas flow in aluminium should be between 20 and 25 L / min depending on the environment and experience of the
welder.
Things to note when welding with Aluminium
- Set the pressure of the rollers to a minimum so as not to crush the wire
- Remove the capillary tube before connecting the aluminium torch
- When welding aluminium use a special aluminium torch with Teflon sheath to reduce friction.
Do not cut the sheath near the connector! It is used to guide the wire from the rollers.
8 - Fastening chains for bottles
9 - Reel support Ø 200/300 mm.
10 - Gas connector (For the HEAVYMIG 450 WS, the
gas hose needs to be connected to the flowmeter of the
bottle).
11 - Rear panel for the connection of the separate wire
feeder (HEAVYMIG 350 GR/450 GR/450 WS)
12 - 5.5 L tank (HEAVYMIG 450 WS)
13 - Chain fixing slot
EN
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