WeldCorp ARC 140 Operation manual

OWNERS OPERATING MANUAL
CONGRATULATIONS ON YOUR PURCHASE OF A QUALITY WELDCORP WELDER
MANUFACTURED IN ITALY, IT WILL PROVIDE YEARS OF RELIABLE OPERATION.

Page 3
SAFETY INSTRUCTIONS Page 4
DESCRIPTION OF MACHINES Page 6
ARC 140 Page 6
ARC 170 Page 7
ASSEMBLY INSTRUCTIONS Page 8
OPERATION Page 9
SET UP OF THE WELDER Page 10
ESTABLISHING THE ARC Page 11
WELDING BASICS Page 12
WELDING SPEED AND CURRENT Page 12
WELDING INFORMATION Page 13
KEY POINTS Page 13
THERMAL OVERLOAD Page 13
TROUBLE SHOOTING GUIDE Page 14
SPARE PARTS Page 16
ARC 140 Page 16
ARC 170 Page 18
WARRANTY Page 20
WARRANTY FORM Page 21
CONTACT DETAILS Page 22
TABLE OF CONTENTS

Page 4
When using power equipment, basic safety precautions should
always be followed to reduce the risk of fire, electric shock and
personal injury, including the following. If used correctly, weld-
ers pose little risk to the operator; however, care should always
be taken to ensure safety and proper performance. Read all
owner’s operating instructions before attempting to operate any
product.
FOR SAFE OPERATION:
KEEP THE WORK AREA CLEAN: Cluttered working areas
(indoor and outdoor) invite injuries.
CONSIDER THE WORK ENVIRONMENT: Don’t expose power
equipment to rain. Don’t use welding equipment in damp or
wet locations. Keep the work area well lit. Don’t use welding
equipment in the presence of flammable liquids or gases.
GUARD AGAINST ELECTRIC SHOCK: Avoid body contact the
grounded surfaces (e.g. pipes, radiator, and electrical appli-
ances).
KEEP CHILDREN AND VISITORS AWAY: Keep children, infirmed
persons and visitors away from the area of operation. Do not
let children, infirmed persons or visitors touch equipment or
extension cables.
STORE IDLE TOOLS: When power equipment is not in use,
keep them in a dry, high or locked area, out of reach of chil-
dren.
WEAR SAFETY GLASSES: Always wear safety goggles or other
suitable eye protection when using welding equipment.
SECURE WORK: Use clamps or a vice whenever possible to
secure work.
DON’T OVERREACH: Keep proper footing and balance at all
times.
SAFETY INSTRUCTIONS

Page 5
DRESS PROPERLY: DO NOT wear loose clothing or jewel-
lery. They can be caught in moving parts. Wear protective
hair covering to cover long hair, and gloves and non-slip
footwear is recommended when working outdoors.
TAKE CARE OF CABLES: Never carry welding equipment by
the cable and never pull the cable to disconnect it from a
socket. Keep cables away from heat, oil and sharp edges.
Replace damaged cables.
DISCONNECT TOOLS: Disconnect welding equipment when
not in use, before servicing, and when changing accesso-
ries such as blades, bits and cutters.
AVOID UNINTENTIONAL OPERATION: Don’t carry plugged in
welding equipment with a finger on the switch. Be sure
that the switch is off when plugging in.
OUTDOOR USE EXTENSION CABLES: When electric power
equipment is used outdoors, only use extension cables
marked as suitable for outdoor use.
STAY ALERT: Watch what you are doing. Use common
sense. Do not operate welders when you are tired or under
the influence of alcohol or drugs.
CHECK DAMAGED PARTS: Before using welding equipment,
parts that are damaged should be carefully checked to de-
termine that they will operate properly and perform their
intended function. Any part that is damaged should be
properly repaired or replaced by an authorized service
agent. Have defect switches replaced by an authorized re-
pair agent. Do not operate power equipment if it cannot be
turned off and on by the switch.
REPAIR OF POWER EQUIPMENT BY EXPERTS: Power equip-
ment is built in accordance with relevant safety authority
requirements. The repair of power equipment must only be
carried out by experts; non-expert repairs may cause con-
siderable danger for the user and void warranty.

FEATURES
ANTI-SHOCK CLAMP 10 AMP SINGLE PHASE
ACCESSORIES INCLUDED THERMOSTATIC CONTROL
ANTI-SCRATCH PAINT ACCESSORIES ASSEMBLED
PORTABLE EUROPEAN CONFORMITY
Page 6
DESCRIPTION OF MACHINES
These models are portable single-phase AC Arc Welders which are compact. The
robust format makes them a versatile and efficient for a variety of uses. The weld-
ers compliance to current regulations and the optimum quality of materials used will
ensure a long working life with complete safety.
ARC 140
SPECIFICATIONS
Mains Voltage 230V
Welding Current 50—140 Amps
Minimum Electrode 1.6 mm
Maximum Electrode 3.25 mm
Weight 13.2 Kg
ACCESSORIES
Electrode Holder
Work Clamp
Hand Held Face Mask
Combination Chipping
Hammer with Wire Brush
Instructional DVD

Page 7
ARC 170
FEATURES
ANTI-SHOCK CLAMP 10 AMP SINGLE PHASE
ACCESSORIES INCLUDED THERMOSTATIC CONTROL
ANTI-SCRATCH PAINT ACCESSORIES ASSEMBLED
PORTABLE EUROPEAN CONFORMITY
WHEEL KIT FAN
WARNING: THIS MACHINE IS DUAL VOLTAGE AND CAN BE ALTERED FROM
230 VOLTS TO 415 VOLTS IF REQUIRED. ONLY USE AN AUTHORISED ELEC-
TRICIAN OR REPAIR AGENT FOR THIS CHANGE.
SPECIFICATIONS
Mains Voltage 230—400V
Welding Current 40—170 Amps
Minimum Electrode 1.6 mm
Maximum Electrode 4.0 mm
Weight 15.6 Kg
ACCESSORIES
Electrode Holder
Work Clamp
Hand Held Face Mask
Combination Chipping
Hammer with Wire Brush
Instructional DVD
Built in trolley

Page 8
ASSEMBLY INSTRUCTIONS
For the ARC 170
Slide the right wheel and axle into position. At-
tach the left wheel onto the axle and insert the R
Clips to retain wheels.
For the ARC 170
Fit the front leg to the base into position and se-
cure with screws.
For both the ARC 140 and ARC 170
Slide the handle into the grooves on top of the
machine and insert screws.
For the ARC 170
Slide the handle extension through the handle
and secure with screw..

Page 9
For both the ARC 140 and ARC 170
Plug the welder power supply lead into any
earthed domestic power point. Flick on the on/off
switch located on the front panel.
OPERATION
For both the ARC 140 and
ARC 170
The amperage can be adjusted
from low to high by rotating the
front amperage knob and viewing
the amperage gauge.
For both the ARC 140 and ARC 170
Select the correct diameter electrode accordingly
to the thickness of the piece that you intend to
weld. (A table is located on page 13). Press the
side lever to open the clamp, insert the electrode
into the V-groove and release side lever. Ensure
that the electrode is correctly inserted inside the
electrode holder.
For both the ARC 140 and ARC 170
To ensure earth has good contact, clean the work
piece with a wire brush. Attach the earth clamp to
the clean area to ensure good contact.

Page 10
SET UP OF THE WELDER
WELDING
MACHINE
ELECTRODE LEAD
GROUND EARTH CABLE
WORK
ARC
ELECTRODE
HOLDER
ELECTRODE
HOW TO SELECT 230/400 V FOR THE
ARC 170
To change the voltage you need to unscrew the
knob of the commutator. At the back of it there
is a plastic cam. According to the position, turn
the know towards either the 230V or 400V.
WARNING: WHEN SETTING THE MACHINE
UP FOR 415 V YOU WILL NEED TO ALSO FIT
AN APPROVED 415 V POWER PLUG.
(NOT INCLUDED.) ENSURE THAT YOU HAVE
THIS PLUG FITTED BY AN ELECTRICIAN OR
AUTHORISED REPAIR AGENT.

Page 11
ESTABLISHING THE ARC
STRIKING THE ARC
Strike the metal to be welded with the electrode as
pictured.
ELECTRODE TACKWELD
30—40
MAKING THE WELD
The weld is made by feeding the
electrode into the molten pool
and at the same time move the
electrode along the joint at a 30
to 40 angle at a speed needed to
deposit the required size of weld.
Pictured to the left.
WARNING: NEVER TOUCH THE ELECTRODE WHILE THE MACHINE IS
TURNED ON. IT CAN RESULT IN INJURY AND ELECTRICUTION.
WELDING TIPS FOR
BEGINNERS
The easiest welding method for beginners
is known as “Touch Welding”. This weld-
ing method is performed by lightly resting
the electrode on the work piece and draw-
ing it away slightly while welding at a 40
angle towards the direction of travel.. Refer
the pictures to the left. This forms only a
short arc. This will flatten and widen the
welding bead.
16 mm
30—40

Page 12
WELDING BASICS
The speed and the current that you weld at has an effect on what the weld will be.
Refer the pictures below:
NORMAL
WELDING SPEED
TOO
SLOW TOO FAST
WELDING CURRENT
TOO
HIGH TOO LOW
The welding surface should be free of rust or paint. Choose the electrode in accor-
dance with the material being welded. It is advisable to initially test the electrode
and amperage on some scrap metal.
Place the electrode at a distance of 2 cm from the work piece and place the face
shield in position to protect the eyes. Strike the arc by bringing the electrode into
contact with the work piece with a light tapping and scrapping action. Through the
face shield you will see the arc which should be in length on to one and half the
diameter of the electrode. It is important to maintain a constant length of the arc.
As the electrode melts and its length decreases, a gradual downward movement is
needed to maintain the correct distance and the arc itself.
To stop welding simply withdraw the electrode away from the work piece. It is ad-
visable to lift into the weld seam to avoid a porous crater.
Be careful—the metal and electrode tip will be hot. Remove the surface slag when
cooled by lightly tapping with a chipping hammer. Welding may be resumed from
the same spot having first ensured the removal of the slag.
WELDING SPEED AND CURRENT

Weldable Metal
Thickness Minimum Current [A] Maximum Current [A]
1.20—1.50 mm 30 50
1.50—2.00 mm 40 80
2.00—4.00 mm 60 100
4.00—6.00 mm 100 130
6.00—7.00 mm 120 170
TABLE FOR SELECTION OF THE WELDING CURRENT ACCORDING TO THE
ELECTRODE AND METAL THICKNESS
Diameter Electrodes
E6013 / E7018
1.6 mm
2.0 mm
2.5 mm
3.2 mm
4.0 mm
NOTE: Weldable metal thickness can be increased by multiple welds.
Page 13
THERMAL OVERLOAD
NOTE:
This welder is fitted with a thermal overload cut out which operates automatically to
stop the transformer overheating. The machine will become operational again
automatically once the temperature has reduced itself to an acceptable
working temperature.
WELDING INFORMATION
KEY POINTS
Get the amperage right from the charts provided.
Check you have the right electrode.
Use the correct angle, 30—40 degrees to the work piece.
Arch weld from left to right.
Remember the safety aspects, preparation for welding and use the correct
equipment.

TROUBLE SHOOTING GUIDE
FAULT REASON REMEDY
Excessive
Electrode
Consumption
Improper size/or geometry
of electrode for current
required
Use larger electrode
Excessive heating in holder Check for proper contact
Contaminated electrode Replace electrode
Contami-
nated
Electrode
Base metal is dirty or
greasy For surface cleanliness use appropriate chemical cleaners alcohol, wire brush or
abrasive
Contaminant elements that
other gas may exist within
the base material itself
If possible, improve base material.
Modify welding parameters to accom-
modate out gassing effect
Check for electrode con-
tamination Replace electrode
Electrode
Dimensions Be sure electrode dimen- sions are appropriate for
application
Electrode tip dimensions vary according
to the welding application—refer to the
guide on page 10
Cable Layout In so far as possible, try to
layout cables from power
supply to welding torch as
straight as possible
Occasionally, cables are coiled like a
garden hose. The coil becomes a giant
inductor causing resistance that re-
duces starting energy. Inductance ef-
fects can also be caused by having
welding power cables very close to
grounded steel plates.
Grounding
Problems Make sure clamps and clamp inserts are clean of
oxidation. Make sure
ground clamp is not worn.
Oxidation and/ or worn equipment can
cause poor ground between part and
clam/ inserts which may hinder arc
starting, wander and other inconsisten-
cies.
Page 14

Page 15
TROUBLE SHOOTING GUIDE
NOTE: If you are still having difficulty with your welder, do not hesitate to
contact our service team on:
1800 001 1812
FAULT REASON REMEDY
Overheat
Lights Come
On
Overheating of unit Allow 3—5 minutes of “cool down” time.
If condition is not resettable, take
welder to repair agent for service.
Difficulty in
Arc Starting Damaged Electrodes Check condition of electrodes
Low voltage problem Check the AMP settings
Arc Does Not
Transfer Loose, missing cable con- nections Check earth connection for loose or poor ground
Power supply not recognis-
ing start signal Check all connections
Extension
Cables Ensure that any extension cables are of adequate
capacity
Low quality/ capacity cables will result
in voltage drops and hinder starting
Check the power supply

SPARE PARTS —ARC 140

NUMBER DESCRIPTION PRODUCT CODE
1 On-Off Switch M485200SP
2 Knob M362100SP
3 Frontal Plastic Mask S087320SP
4 Core Hitch M382000SP
5 Power Cord M581170SP
6 Earth Clamp M610790SP
7 Electrode Holder M610855SP
8 Front Label M00503SP
9 Mantle S00452SP
10 Glass S084350SP
11 Thermostat M493500SP
12 Shunt Index S053260SP
13 Bottom S251890SP
PICTURE
14 Power Transformer S701900SP
15 Black Plastic Mask S087330SP
16 Handle S073300SP
17 Brush M830750SP
18 Mask 90350SP

SPARE PARTS —ARC 170

NUMBER DESCRIPTION PRODUCT CODE
1 HANDLE S073410SP
2 3 POLES SWITCH M480280SP
3 KNOB M362100SP
4 FRONT PLASTIC MASK S0873250SP
5 CORE HITCH M382000SP
6 POWER CORD M581110SP
7 SUPPORT S086600SP
8 EARTH CLAMP M612010SP
9 ELECTRODE HOLDER M610855SP
10 FRONT LABEL M129602SP
11 MANTLE S451890SP
12 GLASS S084350SP
13 BLOCK WHEEL M908100SP
PICTURE
14 AXLE M263270SP
15 BACKWHEELACK S075100SP
16 BLACK PLASTIC MASK S087330SP
17 THERMOSTAT M493500SP
18 SHUNT INDEX S053260SP
19 BOTTOM S251896SP
20 POWERTRANSFORMER S703400SP
21 ROUE A AUBES M500300SP
22 BRUSH M830750SP
23 MASK 90350SP
24 OVAL TUBE M261440SP
25 STOPPER FOR AXLE M387200SP

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NOTES