Table of Contents
Advertisement
1128762
Flux-cored 125 Amp Welder
Assembly & Operating Instructions
READ ALL INSTRUCTIONS AND WARNINGS BEFORE USING THIS PRODUCT.
This manual provides important information on proper operation & maintenance. Every effort has been
made to ensure the accuracy of this manual. These instructions are not meant to cover every possible
condition and situation that may occur. We reserve the right to change this product at any time
without prior notice.
IF THERE IS ANY QUESTION ABOUT A CONDITION BEING SAFE OR UNSAFE, DO
NOT OPERATE THIS PRODUCT!
HAVE QUESTIONS OR PROBLEMS? DO NOT RETURN THIS PRODUCT TO THE
RETAILER - CONTACT CUSTOMER SERVICE.
If you experience a problem or need parts for this product, call our customer support at
1-888-376-9601. A copy of the sales receipt is required.
FOR CONSUMER USE ONLY – NOT FOR PROFESSIONAL USE.
KEEP THIS MANUAL, SALES RECEIPT & APPLICABLE WARRANTY FOR FUTURE
REFERENCE.
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Summary of Contents for JobSmart 1128762
- Page 1 1128762 Flux-cored 125 Amp Welder Assembly & Operating Instructions READ ALL INSTRUCTIONS AND WARNINGS BEFORE USING THIS PRODUCT. This manual provides important information on proper operation & maintenance. Every effort has been made to ensure the accuracy of this manual. These instructions are not meant to cover every possible condition and situation that may occur.
- Page 2 GENERAL PRODUCT SPECIFICATIONS SPECIFICATIONS • Thermal Overload Protection • Output: 80A (rated current)@18V-20%, 125A (peak current) • Input: 120V, 60Hz, 20A, 1Ph • Duty Cycle 20%@80 AMPS • Wire Size: .030 - .035 Inch • Heat Settings: Two • MAX Metal Thickness: 18 Gauge / 3/16" FEATURES: •...
- Page 3 SAFETY SUMMARY TABLE OF CONTENTS Note: • The following safety alert symbols The warnings, cautions and instructions dis- identify important safety messages in this cussed in this instruction manual cannot manual. cover all possible conditions or situations that • When you see one of the symbols shown here, be alert to the possibility of person- could occur.
-
Page 4: Flash Hazards
SHOCK HAZARDS into the power source if the ground prong on power cord plug is bent over, broken off, or missing. WARNING • Do not allow the welder to be connected to the power source or attempt to weld if the welder, welding cables, welding site, or welder power cord are exposed to any ELECTRIC SHOCK CAN KILL! To reduce... - Page 5 • Do not wear a cracked or broken helmet • Do not wear gloves or other clothing that contains oil, grease, or other flammable and replace any cracked or broken filter lenses IMMEDIATELY. substances. • Do not wear flammable hair preparations. •...
- Page 6 • Make sure welding area has a good, • Do not weld, cut, or heat lead, zinc, cad- mium, mercury, beryllium, or similar met- solid, safe floor, preferably concrete or masonry, not tiled, carpeted, or made of als without seeking professional advice and inspection of the ventilation of the any other flammable material.
-
Page 7: Important Safety Instructions
SERVICE Tool service must be performed only by qualified repair personnel. Service or maintenance by unqualified personnel could result in a risk of injury. When servicing a tool, use only identical replacement parts and follow instructions in the manual. Use of unauthorized parts or failure to follow Maintenance Instructions may create a risk of shock or injury. - Page 8 WELDER SPECIFICATIONS INTERNAL THERMAL PROTECTION The welder consists CAUTION of a single-phase power transformer, and a Do not constantly exceed the duty cycle or unique built-in control/feeder. This welder is damage to the welder can result. If you capable of welding with 0.030 inch self- exceed the duty cycle of the welder, an inter- shielding flux-core wire.
- Page 9 Power Cord – This is a standard, grounded KNOW YOUR WELDER 120 volt power cord. (Make sure you are using a properly grounded 120 Vac, 60Hz, single phase, 20 amp power source.) Ground Clamp – Attaching the ground clamp to your work piece “completes” the welding current circuit.
- Page 10 Select a properly grounded extension cord WELDER INSTALLATION that will mate directly with the power source receptacle and the welder power cord with- POWER SOURCE CONNECTION out the use of adapters. Make certain that the extension cord is properly wired and in POWER REQUIREMENTS good electrical condition.
- Page 11 ALIGN AND SET THE DRIVE ROLLER INSTALLING THE HANDLE 1. Line up the holes in the handles with the Before installing any welding wire into the holes on the top of the welder. unit, the proper sized groove must be placed 2.
- Page 12 Note: The drive roller has two wire size so will cause burn through (blowing holes) grooves built into it. When installing the drive in the metal you are intending to weld. roller, the number stamped on the drive roller • If a spool has developed heavy oxidation, for the wire size you are using should be fac- the only solution to the problem is to dis-...
- Page 13 Note: If TOO MUCH tension is applied to the wire spool, the wire will slip on the drive roller or will not be able to feed at all. If TOO LIT- TLE tension is applied, the spool of wire will want to unspool itself.
- Page 14 SET THE WIRE DRIVE TENSION heat. There are two voltage heat selec- tions (labeled MIN and MAX) available on this welder. Position MIN provides the WARNING lowest voltage (heat) and position MAX the highest voltage (heat). 16. Set the WIRE SPEED control to the mid- dle of the wire speed range.
- Page 15 TUNING IN THE WIRE SPEED OPERATION This is one of the most important parts of Operation of this welder consists of selecting MIG welder operation and must be done and adjusting operating controls for optimum before starting each welding job or whenever voltage (welding heat) and wire speed any of the following variables are changed: settings.
- Page 16 You can use the wire speed control to slightly tions until you find the one that seems to increase or decrease the heat and penetra- work best for you. Refer to WELDING tion for a given heat setting by selecting POSITIONS - p.18 higher or lower wire speed settings.
-
Page 17: Welding Techniques
On a fillet weld joint, the nozzle is generally the weld joint. Moving the torch too fast, too positioned in such a manner so as to split the slow, or erratically will prevent proper fusion angle between the horizontal and vertical or create a lumpy, uneven bead. - Page 18 There are two basic types of weld beads, the 2. The HORIZONTAL POSITION (Figure 15) stringer bead and the weave bead. is next in difficulty level. It is performed very much the same as the flat weld except that 1. The STRINGER BEAD (Figure 12) is angle B (see HOLDING THE TORCH - p.16) formed by traveling with the torch in a is such that the wire, and therefore the arc...
- Page 19 The illustrations in Figure 18 show the sequence for laying multiple pass beads into WARNING a single V butt joint. NOTE: WHEN USING SELF-SHIELDING Hot slag can cause fires and serious injury FLUX-CORE WIRE it is very important to from burns! Be sure to wear protective cloth- thoroughly chip and brush the slag off each ing, eye, and ear gear when using the completed weld bead before making another...
- Page 20 SPECIAL WELDING METHODS allowed to fill up the hole leaving a spot weld that is smooth and flush with the surface of the top piece. SPOT WELDING The purpose of a spot weld is to join pieces Select the wire diameter, heat setting, of metal together with a spot of weld instead and tune in the wire speed as if you were of a continuous weld bead.
- Page 21 MAINTENANCE Always use a contact tip stamped with the same diameter as the wire it will be used with. GENERAL Note: Due to inherent variances in flux-cored This welder has been engineered to give welding wire, it may be necessary to use a many years of trouble-free service providing contact tip one size larger than your flux core that a few very simple steps are taken to...
-
Page 22: Troubleshooting
A SHORTED nozzle results when spatter removing four phillips head screws. buildup bridges the insulation in the nozzle, 8. Remove the hanging hook from the two allowing welding current to flow through it as case halves by carefully pulling it apart well as the contact tip. - Page 23 Figure 21. Drive Assembly Figure 22. Torch Assembly...
- Page 24 TABLE 5 – TROUBLESHOOTING...
- Page 25 MMIG125 WIRING DIAGRAM...
- Page 26 MMIG125 PARTS LIST No. Part # Description No. Part # Description 1.1.01.02.0070 Left Board 1.1.05.02.0168 Control PCB 2.07.40.357 Wire Feeder 2.05.05.106 PCB Holder 1.2.01.01.0538 Spool Holder 2.07.11.009 Potentiometer Knob 1.1.02.01.0604 Middle Vertical Board 1 1.1.01.03.0209 Front Panel 1.1.01.04.0112 Underpan 2.05.05.201 Cable Holder 1.1.01.03.0207 Back Panel...
- Page 27 1-888-376-9601...
Need help?
Do you have a question about the 1128762 and is the answer not in the manual?
Questions and answers
No power at unit. Barn stored. No previous problem. Tested power source, checked normal 125v/15 amp.
A possible cause of the JobSmart unit (part number 1128762) having no power despite a tested normal power source could be that the power switch is in the OFF position or the unit is not connected to a properly grounded 120V, 60Hz, single-phase AC power source fused with a 20-amp time delayed fuse or circuit breaker. Another possibility could be a fault in internal components such as the Control PCB or wiring.
This answer is automatically generated