Sealey INVMIG160 User Manual download pdf (Page 5)

4.1.5. To weld aluminium use:

● Argon gas,

● 0.8mm Contact Tip (MIG927),

● 0.8mm Aluminium Wire, (MIG/2KAL08).

A clean torch liner is essential, as any contamination of the aluminium wire will produce a poor weld.

4.1.6. Overload Protection. Thermostatic overload protection is provided. When an overload has occurred, leave

the unit to cool. The thermostat will automatically reset the unit when the temperature has returned within limits.

4.1.7. Burn Back Timer. The INVMIG160 is fitted with a variable Burn Back Timer, the control knob of which is

situated inside the case, above the wire feed assembly. The function of this timer is to leave a controlled

amount of welding wire protruding after the weld current switches off. This prevents the wire melting onto

the electrode.

4.1.8. The interval can be adjusted by moving the knob shown in fig.12.

fig.12

For arc welding the selector switch needs to be in the 'Arc' setting. (fig.1.2)

 WARNING! Before using as an arc welder, ensure that the torch connecter plug is disconnected from both + and - output

sockets. (fig.11)

 WARNING! Ensure that the inverter is not plugged into the mains power supply before connecting or disconnecting cables.

For electrical installation, see Safety Instructions (Section 1).

 WARNING! Failure to follow the electrical safety instructions may affect the operating performance and could damage the

built-in safety system which, in turn, could result in personal injury or fatality and will invalidate the warranty.

5.1. WELDING CABLE ELECTRODE HOLDER CONNECTION

NOTE: Arc welding cables are not supplied with machine. Sealey part no: INVMMA2 is suItable.

Before connecting cables it is important to refer to the electrode manufacturer’s instructions on the electrode packaging which will

indicate the correct polarity connection for the electrode, together with the most suitable current to use.

5.2. ARC WELDING

In principle, when ARC welding the Electrode Holder is normally connected to the “POSITIVE” (+) terminal (fig.1.9).

5.3. WELDING RETURN CABLE- (WORK CLAMP) CONNECTION

The WORK CLAMP cable is connected to the terminal not occupied by the electrode holder cable.

The clamp is connected to:

a) The workpiece, or

b) A metallic work bench. The connection must be as close to the proposed weld as possible.

 WARNING! Cable connectors must be turned fully into the quick plugs to ensure a good electrical contact. Loose

connections will cause overheating, rapid deterioration and loss in efficiency. DO NOT use welding cables over 10m in length.

With the exception of a metallic workbench DO NOT connect the return cable to any metallic structure which is not part of

the workpiece, as this will jeopardise weld quality and may be dangerous.

5. MMA (ARC) WELDING

6. PREPARATION

6.1. The welding current must be regulated according to the diameter of the

electrode in use and the type of joint to be welded. See diameter/current chart

to the right. Welding current is controlled by the amperage regulator (fig.1.5).

6.2. Further consideration must be given to the location of the weld, for example:

Welds that are performed on a horizontal surface require a higher voltage than

those performed on a vertical or overhead surface.

6.3. The mechanical character of the weld will be determined not only by the current

used, but also by the diameter and quality of the electrode, the length of the arc

and the speed and position of the user. The condition of the electrode is an

important factor and it must never be wet or damp.

6.4. Ensure that the workpiece is correctly secured before operating the inverter.

Electrode Welding Current

(Amps)

Diameter (mm) .....Min .................. Max

1.6 ...........................25 .................... 50

2. .............................40 .................... 80

2.5 ...........................60 .................... 110

3.2 ...........................80 .................... 160

4 ..............................120 .................. 200

For Guidance Only

 WARNING! Ensure that you read, understand and follow the safety instructions. Place the welding mask in front of your

face before striking the arc.

7.1. ARC WELDING

7.1.1. Strike the electrode tip on the workpiece as if you were striking a match.

  WARNING! DO NOT hit the electrode on the workpiece, as this may damage the electrode.

7.1.2. As soon as the arc is struck, maintain a distance from the workpiece equal to the diameter of the electrode. Keep this distance as

constant as possible for the duration of the weld. As you advance along the workpiece the angle of the electrode must be maintained

at between 20º and 30º. See fig.13.

7.1.3. At the finish of the weld, bring the end of the electrode backward in order to fill the weld crater and then quickly lift the electrode from

the weld pool to extinguish the arc.

 WARNING! Hot metal such as electrode stubs and workpieces should never be handled without gloves.

7. WELDING PROCEDURE

fig.13

Original Language Version

INVMIG160 | Issue: 2S - 08/01/15

1 2 3 4 5 6 7

Comments to this Manuals

No comments

Sealey INVMIG160 User Manual Page 5

Comments to this Manuals

Related products and manuals for Equipment Sealey INVMIG160