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Effective January 1, 1998

(Equipment with a serial number preface of “KJ” or newer)

This limited warranty supersedes all previous manufacturers

warranties and is exclusive with no other guarantees or

warranties expressed or implied.

LIMITED WARRANTY 

 Subject to the terms and conditions

below, warrants to its original retail purchaser that new

equipment sold after the effective date of this limited warranty

is free of defects in material and workmanship at the time it is

shipped from  factory. THIS WARRANTY IS EXPRESSLY IN

LIEU OF ALL OTHER WARRANTIES, EXPRESS OR

IMPLIED, INCLUDING THE WARRANTIES OF

MERCHANTABILITY AND FITNESS.

Within the warranty periods listed below, manufacturer will

repair or replace any warranted parts or components that fail

due to such defects in material or workmanship.

Manufacturer must be notified in writing within thirty (30) days

of such defect or failure, at which time manufacturer will

provide instructions on the warranty claim procedures to be

followed.

Manufacturer shall honor warranty claims on warranted

equipment listed below in the event of such a failure within the

warranty time periods. All warranty time periods start on the

date that the equipment was delivered to the original retail

purchaser, or one year after the equipment is sent to the

distributor.

1.

5 Years Parts 

 3 Years Labor

* Original main power rectifiers

2.

3 Years — Parts and Labor

* Transformer/Rectifier Power Sources
* Plasma Arc Cutting Power Sources
* Semi-Automatic and Automatic Wire Feeders
* Engine Driven Welding Generators

(NOTE: Engines are warranted separately by the

engine manufacturer.)

3.

1 Year — Parts and Labor

* Motor Driven Guns (w/exception of Spoolmate 185)
* Process Controllers
* Positioners and Controllers
* Automatic Motion Devices
* Robots
* Water Coolant Systems
* HF Units
* Grids
* Spot Welders
* Load Banks
* SDX Transformers
* Running Gear/Trailers
* Field Options

(NOTE: Field options are covered under the limited

warranty for the remaining warranty period of the

product they are installed in, or for a minimum of one

year — whichever is greater.)

4.

6 Months — Batteries

5.

90 Days — Parts and Labor

* MIG Guns/TIG Torches
* Plasma Cutting Torches
* Remote Controls
* Accessory Kits
* Replacement Parts
* Spoolmate 185

Limited Warranty shall not apply to:

1.

Items furnished by manufacturer, but manufactured by

others, such as engines or trade accessories. These

items are covered by the manufacturer’s warranty, if

any.

2.

Consumable components; such as contact tips, cutting

nozzles, contactors, relays, brushes, slip rings, or parts

that fail due to normal wear.

3.

Equipment that has been modified by any party other

than manufacturer, or equipment that has been

improperly installed, improperly operated or misused

based upon industry standards, or equipment which has

not had reasonable and necessary maintenance, or

equipment which has been used for operation outside of

the specifications for the equipment.

MANUFACTURER’S PRODUCTS ARE INTENDED FOR

PURCHASE AND USE BY COMMERCIAL/INDUSTRIAL

USERS AND PERSONS TRAINED AND EXPERIENCED IN

THE USE AND MAINTENANCE OF WELDING

EQUIPMENT.

In the event of a warranty claim covered by this warranty, the

exclusive remedies shall be, at manufacturers option: (1)

repair; or (2) replacement; or, where authorized in writing by

manufacturer in appropriate cases, (3) the reasonable cost

of repair or replacement at an authorized service station; or

(4) payment of or credit for the purchase price (less

reasonable depreciation based upon actual use) upon return

of the goods at customer’s risk and expense. manufacturer’s

option of repair or replacement will be F.O.B., Factory at

Appleton, Wisconsin, or F.O.B. at an authorized service

facility as determined by manufacturer. Therefore no

compensation or reimbursement for transportation costs of

any kind will be allowed.

TO THE EXTENT PERMITTED BY LAW, THE REMEDIES

PROVIDED HEREIN ARE THE SOLE AND EXCLUSIVE

REMEDIES. IN NO EVENT SHALL MANUFACTURER BE

LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL

OR CONSEQUENTIAL DAMAGES (INCLUDING LOSS OF

PROFIT), WHETHER BASED ON CONTRACT, TORT OR

ANY OTHER LEGAL THEORY.

ANY EXPRESS WARRANTY NOT PROVIDED HEREIN

AND ANY IMPLIED WARRANTY, GUARANTY OR

REPRESENTATION AS TO PERFORMANCE, AND ANY

REMEDY FOR BREACH OF CONTRACT TORT OR ANY

OTHER LEGAL THEORY WHICH, BUT FOR THIS

PROVISION, MIGHT ARISE BY IMPLICATION,

OPERATION OF LAW, CUSTOM OF TRADE OR COURSE

OF DEALING, INCLUDING ANY IMPLIED WARRANTY OF

MERCHANTABILITY OR FITNESS FOR PARTICULAR

PURPOSE, WITH RESPECT TO ANY AND ALL

EQUIPMENT FURNISHED BY MANUFACTURER IS

EXCLUDED AND DISCLAIMED BY MANUFACTURER.

Some states in the U.S.A. do not allow limitations of how long

an implied warranty lasts, or the exclusion of incidental,

indirect, special or consequential damages, so the above

limitation or exclusion may not apply to you. This warranty

provides specific legal rights, and other rights may be

available, but may vary from state to state.

In Canada, legislation in some provinces provides for certain

additional warranties or remedies other than as stated

herein, and to the extent that they may not be waived, the

limitations and exclusions set out above may not apply. This

Limited Warranty provides specific legal rights, and other

rights may be available, but may vary from province to

province.

brand_warr 1/98

Warranty

Summary of Contents for MW50

Page 1: ...MW250 Processes Description Gas Metal Arc MIG Welding Flux Cored Arc FCAW Welding Arc Welding Power Source And Wire Feeder OM 154 501L August 1998...

Page 2: ......

Page 3: ...Installing Welding Gun 8 3 5 Electrical Service Requirements 8 3 6 Positioning Jumper Links 9 3 7 Connecting Input Power 10 3 8 Installing Wire Spool And Adjusting Hub Tension 11 3 9 Threading Weldin...

Page 4: ......

Page 5: ...s connected to a properly grounded receptacle outlet D When making input connections attach proper grounding conduc tor first double check connections D Frequently inspect input power cord for damage...

Page 6: ...welding wire at contact tip when not in use D Wear oil free protective garments such as leather gloves heavy shirt cuffless trousers high shoes and a cap D Remove any combustibles such as a butane lig...

Page 7: ...maintained D Keep high frequency source doors and panels tightly shut keep spark gaps at correct setting and use grounding and shielding to minimize the possibility of interference ARC WELDING can cau...

Page 8: ...is a human health hazard However studies are still going forth and evidence continues to be examined Until the final conclusions of the research are reached you may wish to minimize your exposure to e...

Page 9: ...trol Circuit Voltage At Gun 24 Volts DC Welding Processes Gas Metal Arc GMAW And Flux Cored Arc Welding FCAW Calculated Speed Range At No Load 128 To 1051 ipm 3 2 To 266 9 mpm Wire Diameter Range 030...

Page 10: ...e At 200 Amperes 6 Minutes Welding 4 Minutes Resting UNIT GUN 6 minutes Welding 4 minutes Resting GUN 6 minutes Welding 4 minutes Resting 60 Duty Cycle At 200 Amperes Using CO2 60 Duty Cycle At 180 Am...

Page 11: ...face is vertical 9 Gas Hose Connection Fitting has 5 8 18 right hand threads Obtain and install gas hose 10 Flow Adjust Typical flow rate is 20 cfh cubic feet per hour Check wire manufactur er s reco...

Page 12: ...Cored Wires FCAW Process Drive Assembly Becomes Negative S 144 449 D Tools Needed 3 4 11 16 in 3 4 Installing Welding Gun 1 Wire Drive Assembly 2 Gun Securing Knob 3 Gun End Loosen securing knob Inser...

Page 13: ...ge available at site 1 Jumper Links Access Door Open door 2 Jumper Link Label 3 Input Voltage Jumper Link Move jumper link to match input voltage Close and secure access door Close side door 1 2 200 V...

Page 14: ...onductor and input conductors in conduit or equivalent between wall receptacle and deenergized line disconnect device Connect grounding conductor first then line input conductors Be sure grounding con...

Page 15: ...mpression spring is used with 8 in 200 mm spools 5 Hub 6 Hub Pin Slide spool onto hub so wire feeds off bottom Turn spool until hub pin fits hole in back of spool Reinstall retaining ring 7 Hub Tensio...

Page 16: ...54 251 S 0627 A 6 in 150 mm 4 in 102 mm Tighten WOOD Open pressure assembly Pull and hold wire cut off end Push wire thru guides into gun continue to hold wire Close and tighten pressure assembly and...

Page 17: ...ge Step 6 of Low range and Step 1 of High range overlap 3 Pilot Light 4 Power Switch Use switch to turn unit On and Off The pilot light comes on when unit is turned on 5 Work Clamp Use wire brush or s...

Page 18: ...when wire speed is between 90 and 670 ipm Use Full position when wire speed is be tween 150 ipm and 1030 ipm 2 Voltage Range Selector Place switch in desired position See inside rear cover for settin...

Page 19: ...Weld Terminals Repair Or Replace Cracked Cables And Cords 6 Months Blow Out Or Vacuum Inside Remove drive roll and carrier Apply light coat of oil or grease to drive motor shaft 5 2 Circuit Breaker CB...

Page 20: ...e Loosen screw Slide tip as close to drive rolls as possible without touching Tighten screw 3 Anti Wear Guide Install guide as shown 4 Drive Roll Install correct drive roll for wire size and type 5 Dr...

Page 21: ...Disconnect gun first Tools Needed 3 8 in 3 8 in Head Tube 3 8 in Remove nozzle contact tip and liner collet Blow out gun casing Gun Feeder Connector Remove liner To Reassemble Gun Install contact tip...

Page 22: ...6 Low weld output Connect unit to proper input voltage or check for low line voltage see Section 3 7 Wire Drive Gun Trouble Remedy Electrode wire feeding stops during welding Straightengun cable and...

Page 23: ...OM 154 501 Page 19 SECTION 6 ELECTRICAL DIAGRAM SB 173 544 E Figure 6 1 Circuit Diagram For Welding Power Source...

Page 24: ...09 970 Rectifier Bracket 143 810 Rear Panel 169 654 Tank Bracket 044 426 Cable Clamp 8 602 387 Cylinder Chain 9 146 165 Side Panel LH 10 089 899 Latch 11 146 167 Side Panel 12 134 464 Warning Label 13...

Page 25: ...13 185 643 Strip mtg LH RH 14 184 584 Capacitor 185 642 Insulator 15 186 355 Contactor 114 786 Link 16 134 201 PC Card Stand Off 17 173 002 Motor Speed Control Card 18 012 658 Fuse mintr gl slo blo 2...

Page 26: ...ener 7 085 244 Cupped Washer 8 010 231 Spring 9 085 243 Knob 10 166 071 Pressure Lever 11 079 634 Hinge Pin 12 151 828 Cotter Hair Pin 13 173 616 Cover motor 14 173 435 Motor 15 079 633 Fitting hose 3...

Page 27: ...TIONAL Part No Item No Description 1 3 4 5 6 7 8 9 12 1 11 1 10 13 14 15 2 2 16 17 Ref ST 801 148 Included w Item 7 Figure 7 4 MWG 23B Figure 7 1 Item22 Table 7 1 Drive Roll And Wire Guide Kits IMPORT...

Page 28: ......

Page 29: ...ormal wear 3 Equipment that has been modified by any party other than manufacturer or equipment that has been improperly installed improperly operated or misused based upon industry standards or equip...

Page 30: ...Style Number Contact your Distributor for Welding Supplies and Consumables Options and Accessories Personal Safety Equipment Service and Repair Replacement Parts Owner s Manuals Circuit Diagrams Cont...

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