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  6.    CABLE CONNECTION

 

  

WARNING!

 

Ensure that the inverter is not plugged into the mains power supply  

 

before assembling, 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.

6.1.  WELDING CABLE “ELECTRODE HOLDER” CONNECTION

 

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.

6.2.  ARC WELDING

 

 

In principle, when ARC welding the electrode Holder ”PoSITIVe” is normally connected  

 

to the “PoSITIVe” (+) terminal (fig. 4).

6.3.  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.   CABLE CLAMP ASSEMBLY

5.1.  Work Clamp (See fig.3-A)

5.1.1. Remove the black rubber sleeve from the clamp arm which has the screw and plate and  

 

thread the cable through the rubber sleeve. Remove the pre-cut section of insulation from  

 

the cable end. 

5.1.2. loosen the clamp screw and plate and lay the cable into the back of the arm with  

 

the bare wire under the plate. Tighten the clamp screw. 

5.1.3. Slide the black rubber sleeve back over the clamp arm.

5.2.  Electrode Holder (See fig.3-B)

5.2.1. Undo the handle retaining screw. Pull the handle from the head and thread the free end  

 

of the cable through it, as shown. Remove the pre-cut section of insulation from the cable  

 

end.

5.2.2. loosen the clamp screw on the handle and fit the bared cable core under the clamp    

 

plate as shown. 

5.2.3. Tighten screw to clamp the cable end.

5.2.4. Refit the handle to the head and insert the retaining screw.

  4.   WELDING MASK ASSEMBLY

Original Language Version

4.1.  Assembly

: Referring to fig.2, separate the main components of the mask as shown in (A) and (B) into their separate parts. Trim any    

 

spikes and burrs of excess plastic from the pieces in preparation for assembly.

4.1.1. overlap the two main halves of the mask so that the fixing holes line up and insert one fixing (1) from the outside into the hole above the   

 

window. Place the assembly face downwards.

4.1.2. lay the tinted glass window (2) over the window opening and lay the frame (3) over the glass. Screw a plastic retainer ring (4) onto fixing  

 

(1). 

4.1.3. lift up the assembly and insert the handle threads (7) through the two holes below the window. Turn the assembly over and fix the  

 

 

handle with plastic retaining rings (8) and (9).

4.1.4. Insert fixing (5) through the remaining hole in the top of the mask and fix it with the remaining retaining ring (6).

4.2.  Use

: Always hold mask close to the face to provide maximum protection from radiation and droplets of molten metal.

4.2.1. Before each use check that the mask is  

 

undamaged and that the filter glass is in 

 

position and firmly retained. Remove any  

 

metal droplets that may be on the glass.

 

Danger! Never use a filter glass that is  

 

chipped, cracked or otherwise faulty  

 

as severe eye damage may result.

 

Warning! DO NOT allow the mask to  

 

come into contact with flame as the  

 

fumes produced are harmful.

4.2.2. Clean with soapy water, 

DO NOT

 use  

 

solvents.

fig.3

fig.4

MW181     Issue No.1    28/10/11

fig.2

Содержание MW181

Страница 1: ...MW181 Model INSTRUCTIONS FOR MMA TIG INVERTER Welder 180Amp 230V MW181 Issue No 1 28 10 11 ...

Страница 2: ...tion extends beyond the cable restraint and that the restraint is tight Double insulated products which are always marked with this symbol are fitted with live brown and neutral blue wires only To rewire connect the wires as indicated above DO NOT connect either wire to the earth terminal 1 1 10 Products which require more than 13 amps are supplied without a plug In this case you must contact a qu...

Страница 3: ...of the IGBT drivers which control regulation The control board also determines the dynamic response of the current transient during the phases of electrode fusion instant short circuit and is responsible for the safety system 2 description 3 specification 3 1 SPECIFICATION Model No MW181 Operating Power Output 15 170A Duty Cycle 18 170A Electrode Capacity Ø1 6 4 0mm Max Absorbed Power 4 8kW Mains ...

Страница 4: ...ay the cable into the back of the arm with the bare wire under the plate Tighten the clamp screw 5 1 3 Slide the black rubber sleeve back over the clamp arm 5 2 Electrode Holder See fig 3 B 5 2 1 Undo the handle retaining screw Pull the handle from the head and thread the free end of the cable through it as shown Remove the pre cut section of insulation from the cable end 5 2 2 Loosen the clamp sc...

Страница 5: ...re striking the arc 9 1 ARC WELDING 9 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 9 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 a...

Страница 6: ...uit may or may not be earthed for safety reasons Changing the earthing arrangements should only be authorised by a person who is competent to assess whether the changes will increase the risk of injury e g by allowing parallel welding cutting circuit return paths which may damage the earth circuits of other equipment Further guidance is given in IEC 974 13 Arc Welding Equipment Installation and Us...

Страница 7: ...k a connection bonding the workpiece to earth may reduce emissions in some but not all instances Care should be taken to prevent the earthing of the workpiece increasing the risk of injury to others or damage to other electrical equipment Where necessary the connection of the workpiece to earth should be made by a direct connection to the workpiece but in some countries where direct connection is ...

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