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12

problem

Cause/Corrective action

Incomplete fusion to base metal

Work piece dirty. Remove all 

grease, oil, moisture, rust, 

paint, coatings, and dirt from 

work surface before welding.

Insufficient heat input. Select 

higher voltage range and/or 

adjust wire feed speed.

Improper welding technique. 

Place stringer bead in proper 

locations) at joint during 

welding.
Adjust work angle or widen 

groove to access bottom 

during welding.
Momentarily hold arc on 

groove side walls when using 

weaving technique.
Keep arc on leading edge of 

weld puddle. Use correct gun 

angle of 0 to 15 degrees.

Excessive Penetration – weld 

metal melting through base 

metal and hanging underneath 

weld.

Excessive heat input. Select 

lower voltage range and 

reduce wire feed speed.
Increase travel speed.

Lack Of Penetration - shallow
Fusion between weld metal and
Base metal.

Improper joint preparation. 

Material too thick. Joint 

preparation and design must 

provide access to bottom of 

groove while maintaining
Proper welding wire extension 

and arc characteristics.

Improper weld technique. 

Maintain normal gun angle of 

0 to 15 degrees to achieve 

maximum penetration. Keep 

arc on leading edge of weld 

puddle. Ensure welding wire 

extends not more than 13 mm 

beyond nozzle.

Insufficient heat input. Select 

higher wire feed speed and/or 

select higher voltage range.
Reduce travel speed.

Burn-Through - weld metal 

melting
Completely through base metal
Resulting in holes where no 

metal remains.

Excessive heat input. Select 

lower voltage range and 

reduce wire feed speed.
Increase and/or maintain 

steady travel speed.

problem

Cause/Corrective action

Excessive Spatter - scattering of
Molten metal particles that cool 

to solid form near weld bead.

Wire feed speed too high. 

Select lower wire feed speed.
Voltage too high. Select lower 

voltage range.

Electrode extension (stick out) 

too long. Use shorter electrode 

extension (sick out).

Work piece dirty. Remove all 

grease, oil, moisture, rust, 

paint, undercoating, and dirt 

from work surface before 

welding.

Insufficient shielding gas at 

welding arc. Increase flow of 

shielding gas at regulator/flow 

meter and/or prevent drafts 

near welding arc.

Dirty welding wire. Use clean, 

dry welding wire. Eliminate 

pickup of oil or lubricant on 

welding wire from feeder or 

liner.

Wire feed unit operates but no 

gas flow .

Gas cylinder empty
Gas regulator closed
Faulty solenoid
Restriction in torch cables

Wire feed unit operates, but 

does not feed

Insufficient drive roll pressure

Incorrect drive rolls
Excessive wire spool brake 

tension
Incorrect liner
Blocked liner
Bird nesting
Burn back

Bird nesting

Excessive feed roll pressure
Incorrect or blocked liner
Incorrect contact tip size
Contact tip overheating
Restriction in torch cable
Misaligned drive rolls or wire 

guides
Excessive cable kinkage

Burn back

Improper voltage setting
Improper stick out
Erratic wire feed
Incorrect or blocked liner
Contact tip overheating
Excessive cable kinking

Содержание XTM254i

Страница 1: ...Operator Manual ISSUE 2 XTM254i...

Страница 2: ...er maintanance 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...

Страница 3: ...Connections 7 5 5 Changing drive roll sets 7 5 6 Welding wire installation 7 5 7 torch installation 7 5 8 Work return lead connection 8 5 9 Shielding gas connection 8 6 0 Operation 8 6 1 Feeding wire...

Страница 4: ...manual Wear a safety harness if working above floor level Keep all panels and covers securely in place Clamp work cable with good metal to metal contact to work piece or worktable as near the weld as...

Страница 5: ...ect pacemakers Pacemaker wearers keep away Wearers should consult their doctor before going near arc welding gouging or spot welding operations NOISE can damage hearing Noise from some processes or eq...

Страница 6: ...LEFT ADJUST KNOB Its main function is adjusting welding current in synergic mode and the wire speed in manual mode 6 VOLTAGE DISPLAY INDICATOR It will be display Arc Force preset in MMA and display vo...

Страница 7: ...y for MIG welding with GAS 5 5 Changing drive roll sets 1 Turn off the power source 2 Release the pressure on the idle roll by swinging the adjustable pressure arm down toward the back of the machine...

Страница 8: ...blue hose The blue hose delivers cold water directly to the prime source of heat the swan neck and consumable The re circulated water is then passed through the torch power cable to cool the power ca...

Страница 9: ...lding release the gun trigger and then pull the gun away from the work after the arc goes out 5 When no more welding is to be done close valve on gas cylinder if used momentarily operate gun trigger t...

Страница 10: ...ts 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...

Страница 11: ...nless steel 318l 16 high corrosion resistance Ideal for dairy work etc On stainless steels TIG Welding guide Using the selector button 8 toggle through the functions until the MMA light is illuminated...

Страница 12: ...weld metal melting Completely through base metal Resulting in holes where no metal remains Excessive heat input Select lower voltage range and reduce wire feed speed Increase and or maintain steady tr...

Страница 13: ...or wire guide junctions Incorrect contact tip size Contact Tip overheating Spatter adhesion on exit geometry of tip bore Excessive cable kinkage Poor earth or cable connections Weld joint area dirty Y...

Страница 14: ...XP2024 12 40 Steel Liner 0409 0459 1 0mm 1 2mm x 13ft 4m XP2024 12 50 Steel Liner 0409 0459 1 0mm 1 2mm x 16ft 5m NI XP2024PC 12 30 Polyamide Copper Liner 0309 0459 0 8 1 2mm x 10ft3m XP2024PC 12 40 P...

Страница 15: ...pm flow E700123 2 Gauge Argon 30 lpm flow Flow Meters Features Designed from brass bar whilst the tube and cover are moulded from high quality polycarbonate to ensure high impact resistance and clarit...

Страница 16: ...0 5 Amps 90 105 11 140 Volts 14 7 14 9 15 9 17 Amps 62 100 125 155 Volts 13 5 17 19 5 20 3 Amps 80 110 130 140 Volts 14 17 19 5 20 3 Amps 80 110 130 140 Volts 14 17 19 5 20 3 Amps 62 83 100 120 Volts...

Страница 17: ...0 6 9 20 22 1 22 5 23 5 23 5 30 160 180 200 215 225 6 9 20 5 21 1 22 5 23 5 23 9 30 160 180 200 220 240 6 9 20 5 21 1 22 5 23 5 24 1 11 140 146 166 180 200 5 9 17 17 9 19 3 21 5 23 5 25 155 170 200 18...

Страница 18: ...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 19: ...ld 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 merchantability or fitness for a...

Страница 20: ...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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