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Description

possible Cause

Remedy

Electrode melts 

or oxidizes 

when an arc is 

struck

(a) No gas flowing to 

welding region
(b) Torch is clogged with 

dust
(c) Gas hose is cut
(d) Gas passage 

contains impurities
(e) Gas regulator is 

turned off
(f) Torch valve is turned 

off
(g) The electrode is too 

small for the welding 

current

(a) Check the gas 

lines for kinks or 

breaks and gas 

cylinder contents
(b) Clean torch
(c) Replace gas 

hose
(d) Disconnect gas 

hose from torch 

then raise gas 

pressure to blow  

out impurities.
(e) Turn on
(f) Turn on
(g) Increase 

electrode diameter 

or reduce the 

welding current

Poor weld finish

Inadequate shielding 

gas

Increase gas flow or 

check gas line for 

gas flow problems

Arc flutters 

during TIG 

welding

(a) Tungsten electrode is 

too large for the welding 

current
(b) Absence of oxides in 

the Weld pool.

(a) Select the right 

size electrode. Refer 

to basic TIG welding 

guide.
(b) Refer basic TIG 

welding guide for 

ways to reduce arc 

flutter

Welding arc 

cannot be 

established

(a) Work clamp is not 

connected to the work 

piece or the work/torch 

leads are not connected 

to the machine
(b) Torch lead is discon-

nected

(c) Gas flow incorrectly 

set, cylinder empty or 

the torch valve is off

a) Connect the work 

clamp to the work 

piece or connect 

the work/torch leads 

to the right welding 

terminals.
(b) Connect it to the 

‘.’ terminal.
(c) Select the right 

flow rate, change 

cylinders or turn 

torch valve on.

Arc start is not 

smooth

(a) Tungsten electrode is 

too large for the welding 

current .
(b) The wrong electrode 

is being used for the 

welding job.

(c) Gas flow rate is too 

high.
(d) Incorrect shielding 

gas is being used.
(e) Poor work clamp 

connection to work piece

(a) Select the right 

size electrode
(b) Select the right 

electrode type.  

Refer to basic TIG 

welding guide
(c) Select the correct 

rate for the welding 

job. Refer to basic 

TIG welding guide
(d) Select the right 

shielding gas. Refer 

to basic TIG welding 

guide
(e) Improve 

connection to work 

piece

Power source problems

  

 

  

Description

Possible cause

Remedy

The welding 

arc cannot be 

established

(a) The primary supply 

voltage has not been 

switched on
(b) The welding power 

source switch is switched 

off
(c) Loose connections 

internally

(a) Switch on the 

primary supply 

voltage
(b) Switch on the 

welding power 

source.
(c) 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 engineer 

inspect then repair 

the welder

Welding 

current 

reduces when 

welding

Poor work lead 

connection to the work 

piece

Ensure that the 

work lead has a 

reliable electrical 

connection to the 

work piece

A total loss of 

power, pilot 

lamp is off, 

no output, 

the fan is not 

operating

(a) Failure of input 

voltage
(b) Possible over voltage
(c) Internal fault with the 

machine

(a) Re-establish 

mains supply
(b) Check voltage 

and if necessary 

move machine to 

alternative supply

(c) Have a qualified 

service engineer 

inspect then repair 

the welder

Fault lamp is 

on, no power 

output

(a) Machine overheated
(b) Over current state
(c) Internal fault with 

machine

(a) Allow to cool 

with fan running
(b) Switch off 

mains power to the 

machine and re start

(c) Have a qualified 

service engineer 

inspect
then repair the 

welder

 

rOutIne MaIntenanCe

The only routine maintenance required for the power supply is a 

thorough cleaning and inspection, with the frequency depending on 

the usage and the operating environment.

Warning 
Disconnect primary power at the source before removing the cover. 

Wait at least two minutes before opening the cover to allow the 

primary capacitors to discharge.

To clean the unit, remove the screws securing the outer cover, 

lift off the outer cover and use a vacuum cleaner to remove any 

accumulated dirt and dust. The unit should also be wiped clean, 

if necessary; with solvents that are recommended for cleaning 

electrical apparatus.

10

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Содержание XTS 203 MMA

Страница 1: ...Operator Manual ISSUE 1 XTS 203 MMA...

Страница 2: ...maintenance this equipment should provide years of reliable service All our systems conform to ISO9001 2000 and are independently audited by NQA The entire product range carries the CE mark and is co...

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

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: ...noise level is high Shielding gas cylinders contain gas under high pressure CYLINDERS can explode if damaged Protect compressed gas cylinders from excessive heat mechanical shocks physical damage sla...

Страница 6: ...d 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 C...

Страница 7: ...me 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 li...

Страница 8: ...build up sequence the output current when it detects the rise in arc voltage as the tungsten is lifted from the work piece TIG welding guide ranges Electrode diameter DC current amps 0 040 1 0mm 30 60...

Страница 9: ...tration adequate penetration Use suitable tools to remove all slag from corners f Use electrodes designed for position in which welding is done otherwise proper control of slag is difficult TIG weldin...

Страница 10: ...ect the right shielding gas Refer to basic TIG welding guide e Improve connection to work piece Power source problems Description Possible cause Remedy The welding arc cannot be established a The prim...

Страница 11: ...tted 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 E7...

Страница 12: ...www parweld com 12 ACCESSORY ER26 and ER26FX Air Cooled Ergo 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...

Страница 13: ...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 14: ...to be compliant with the rohs directive with all homogeneous component parts being controlled to ensure material contents as per the list below Cadmium 0 01 by weight Lead 0 1 by weight Mercury 0 1 by...

Страница 15: ...the product determined by Parweld to be defective Parweld makes no other warranty express or implied This warranty is exclusive and in lieu of all others including but not limited to any warranty of...

Страница 16: ...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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