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7

input voltages shown on the input data label on the unit nameplate. 

Refer to the specifications table for voltage tolerances. 
Have a qualified electrician connect the input plug. For long runs 

over 30m, larger copper wires should be used. The green/yellow 

wire in the input cable connects to the frame of the machine. This 

ensures proper grounding of the machine when the machine plug is 

inserted into the receptacle.

5.4 Output polarity Connections

Electrode polarity
MMA electrodes are generally connected to the ‘+’ terminal and the 

work lead to the ‘-‘terminal
But if in doubt consult the electrode manufacturer’s literature.
IF TIG welding the torch should always be connected to the ‘-’ 

terminal.

5.5 torch installation

MMA cable connections
Connect electrode lead to positive terminal

TIG welding cable connection
Connect the TIG torch to the - terminal. Depending upon the 

termination of the torch it may be necessary to fit a power adaptor so 

the gas hose can be fitted to the Gas outlet connection. The trigger 

wires should be connected to the trigger socket on the front panel 

using a suitable plug.

5.6  Work return lead connection

MMA cable connections
Connect work lead to negative terminal

TIG welding
Connect the work return lead to the + terminal

6.0 Operation

WarnInG

When using an open arc process, it is necessary to use correct 
eye, head, and body protection.

6.1 MMA Welding Guide

Effects of MMA welding various materials

High tensile and alloy steels
The two most prominent effects of welding these steels are the 

formation of a hardened zone in the weld area, and, if suitable 

precautions are not taken, the occurrence in this zone of under-bead 

cracks. Hardened zone and under-bead cracks in the weld area may 

be reduced by using the correct electrodes, preheating, using higher 

current settings, using larger electrodes sizes, short runs for larger 

electrode deposits or tempering in a furnace.

Manganese steels
The effect on manganese steel of slow cooling from high 

temperatures is enbrittlement. For this reason it is absolutely 

essential to keep manganese steel cool during welding by quenching 

after each weld or skip welding to distribute the heat.

Cast iron
Most types of cast iron, except white iron, are weldable. White iron, 

because of its extreme brittleness, generally cracks when attempts 

are made to weld it. Trouble may also be experienced when welding 

white-heart malleable, due to the porosity caused by gas held in this 

type of iron.

Copper and alloys
The most important factor is the high rate of heat conductivity of 

copper, making preheating of heavy sections necessary to give 

proper fusion of weld and base metal.

Types of electrodes

Arc welding electrodes are classified into a number of groups 

depending on their applications. There are a great number of 

electrodes used for specialized industrial purposes which are not of 

particular interest for everyday general work. These include some 

low hydrogen types for high tensile steel, cellulose types for welding 

large diameter pipes, etc. The range of electrodes dealt with in this 

publication will cover the vast majority of applications likely to be 

encountered; are all easy to use and all will work on even the most 

basic of welding machines.

Metals being joined & electrode comments
Mild steel  
6013 ideal electrodes for all general purpose work. Features include 

outstanding operator appeal, easy arc starting and low spatter.

Mild steel  
7014 all positional electrode for use on mild and galvanized steel 

furniture, plates, fences, gates, pipes and tanks etc. Especially 

suitable for vertical down welding.

Cast iron 
99% nickel suitable for joining all cast irons except white cast iron
Stainless steel 
318l-16 high corrosion resistance. Ideal for dairy work, etc. On 

stainless steels.

6.2 

Basic TIG Welding guide

Tig welding cable connection
Connect the TIG torch to the - terminal and the work lead to the + 

terminal for direct current straight polarity. Direct current straight 

polarity is the most widely used polarity for DC TIG welding. It allows 

limited wear of the electrode since 70% of the heat is concentrated 

at the work piece.  

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Содержание XTT-182 DV

Страница 1: ...Operator Manual ISSUE 1 XTT 182 DV...

Страница 2: ...maintenance this equipment should provide years of reliable service All our systems conform to ISO9001 2008 and are independently audited by NQA The entire product range carries the CE mark and is co...

Страница 3: ...3 Input and grounding connection 6 5 4 Output Polarity Connections 7 5 5 Torch Installation 7 5 6 Work return lead connection 7 6 0 Operation 7 6 1 MMA Welding guide 7 6 2 Basic TIG welding guide 7 7...

Страница 4: ...ealth FUMES AND GASES can be hazardous Keep your head out of the fumes Do not breathe the fumes If inside ventilate the area and or use local forced ventilation at the arc to remove welding fumes and...

Страница 5: ...g Wear approved ear protection if noise level is high Shielding gas cylinders contain gas under high pressure CYLINDERS can explode if damaged Protect compressed gas cylinders from excessive heat mech...

Страница 6: ...commend you retain the packaging until the machine has been fully installed and tested incase it has been damaged in transit and has to be returned to the re seller 5 2 Location Be sure to locate the...

Страница 7: ...of slow cooling from high temperatures is enbrittlement For this reason it is absolutely essential to keep manganese steel cool during welding by quenching after each weld or skip welding to distribu...

Страница 8: ...teel Pure Argon Stainless steel Pure Argon Nickel alloy Pure Argon Copper Pure Argon Titanium Pure Argon Machine setup for TIG welding DC TIG welding 1 Connect the torch to the connection and the gas...

Страница 9: ...Cooling rate is too high a Redesign to relieve weld joint of severe stresses or use crack resistance electrodes b Travel slightly slower to allow greater build up in throat c Preheat plate and cool sl...

Страница 10: ...d current Weld bead too small or insufficient penetration or ripples in bead are widely spaced apart Travel speed too fast Reduce travel speed Weld bead too wide or excessive bead build up or excessiv...

Страница 11: ...off d Have a qualified service engineer repair the connection Maximum output welding current cannot be achieved with nominal mains supply voltage Defective control circuit Have a qualified service en...

Страница 12: ...www parweld com FAULT FINDING 12...

Страница 13: ...Fitted with 5 8 BSP inlet connections Stock Code Description Maximum Outlet Pressure E700140 Argon Preset Regulator 3 0 Bar E700141 Argon Indicator Regulator 3 0 Bar E700113 1 Gauge Argon 30 lpm flow...

Страница 14: ...www parweld com 14 PRO26 and PRO26FX Air Cooled PRO Grip MAX TIG Welding Torch B 2 3 11 12 13 4 5 10 9 7 6 8 14 15 16 C D E A 1 18 17 1 A F G H I J 1 A K L ACCESSORY...

Страница 15: ...Code Description H 45V29 Gas Lens Body 0209 0 5mm Bore 45V24 Gas Lens Body 0409 1 0mm Bore 45V25 Gas Lens Body 1 169 1 6mm Bore 45V26 Gas Lens Body 3 329 2 4mm Bore 45V27 Gas Lens Body 1 89 3 2mm Bore...

Страница 16: ...d to ensure material contents as per the list below Cadmium 0 01 by weight Lead 0 1 by weight Mercury 0 1 by weight Hexavalent chromium 0 1 by weight Polybrominated biphenyl s pbbs 0 1 by weight Polyb...

Страница 17: ...no other warranty express or implied This warranty is exclusive and in lieu of all others including but not limited to any warranty of merchantability or fitness for any particular purpose Limitation...

Страница 18: ...Parweld Limited Bewdley Business Park Long Bank Bewdley Worcestershire England DY12 2TZ tel 44 1299 266800 fax 44 1299 266900 www parweld com info parweld co uk...

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