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TROUBLESHOOTING

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SP-175T

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

Local Lincoln Authorized Field Service Facility

for technical troubleshooting assistance before you proceed.

CAUTION

This Troubleshooting Guide is provided to help you
locate and repair possible machine malfunctions.
Simply follow the three-step procedure listed below.

Step 1. LOCATE PROBLEM (SYMPTOM).

Look under the column labeled

“

PROBLEM (SYMP-

TOMS)

”

. This column describes possible symptoms

that the machine may exhibit. Find the listing that
best describes the symptom that the machine is
exhibiting.

Step 2. POSSIBLE CAUSE.

The second column labeled

“

POSSIBLE CAUSE

”

lists

the obvious external possibilities that may contribute
to the machine symptom.

Step 3. RECOMMENDED COURSE OF ACTION

This column provides a course of action for the
Possible Cause, generally it states to contact your
local Lincoln Authorized Field Service Facility.

If you do not understand or are unable to perform the
Recommended Course of Action safely, contact your
local Lincoln Authorized Field Service Facility.

HOW TO USE TROUBLESHOOTING GUIDE

Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician and
machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical
Shock, please observe all safety notes and precautions detailed throughout this manual.

__________________________________________________________________________

WARNING

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Содержание SP-175T

Страница 1: ...FETY PRECAUTIONS CONTAINED THROUGHOUT And most importantly think before you act and be careful For use with machine Code Numbers 10985 Sales and Service through Subsidiaries and Distributors Worldwide Cleveland Ohio 44117 1199 U S A TEL 216 481 8100 FAX 216 486 1751 WEB SITE www lincolnelectric com World s Leader in Welding and Cutting Products Copyright 2005 Lincoln Global Inc ISO 9001 CERTIFICAT...

Страница 2: ... WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING Read and understand the following safety highlights For additional safety information it is strongly recommended that you purchase a copy of Safety in Welding Cutting ANSI Standard Z49 1 from the American Welding Society P O Box 351040 Miami Florida 33135 or CSA Standard W117 2 1974 A Free copy of Arc Welding Safety booklet E205 is availab...

Страница 3: ...rical earth ground 3 f Maintain the electrode holder work clamp welding cable and welding machine in good safe operating condition Replace damaged insulation 3 g Never dip the electrode in water for cooling 3 h Never simultaneously touch electrically hot parts of electrode holders connected to two welders because voltage between the two can be the total of the open circuit voltage of both welders ...

Страница 4: ...event the welding sparks from starting a fire Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas Avoid welding near hydraulic lines Have a fire extinguisher readily available 6 b Where compressed gases are to be used at the job site special precautions should be used to prevent hazardous situations Refer to Safety in Weldin...

Страница 5: ...s et non inflammables 4 Des gouttes de laitier en fusion sont émises de l arc de soudage Se protéger avec des vêtements de protection libres de l huile tels que les gants en cuir chemise épaisse pan talons sans revers et chaussures montantes 5 Toujours porter des lunettes de sécurité dans la zone de soudage Utiliser des lunettes avec écrans lateraux dans les zones où l on pique le laitier 6 Eloign...

Страница 6: ... below for future reference This information can be found on your machine nameplate Product _________________________________________________________________________________ Model Number ___________________________________________________________________________ Code Number or Date Code_________________________________________________________________ Serial Number__________________________________...

Страница 7: ...nd Settings B 2 Welding Operations B 3 Wire Loading B 3 Wire Threading B 4 Making a Weld B 5 Process Guidelines B 5 Chaning Over to Feed Other Wire Sizes B 6 Welding with GMAW B 6 Welding with FCAW B 6 Overload Protection B 6 Learning to Weld B 7 Application Chart B 18 Accessories Section C Accessories C 1 Replacement Parts C 2 Maintenance Section D Safety Precautions D 1 Routine Maintenance D 1 G...

Страница 8: ...COMMENDED INPUT CABLE AND FUSE SIZES Height Width Depth Weight 12 0 in 9 75 in 16 5 in 57 Ibs 305 mm 248 mm 419 mm 25 9 kg PHYSICAL DIMENSIONS Standard Voltage Frequency Input Current 230V 60Hz 20 Amps Rated Output 208V 60Hz 22 Amps Rated Output Duty Cycle Amps Volts at Rated Amperes 30 Duty Cycle 230V 60Hz 130 20 25 Duty Cycle 208V 60Hz 130 20 Welding Current Range Maximum Open Circuit Voltage Wi...

Страница 9: ...ve roll 4 10 ft 3 0 m work cable 5 Work clamp 6 Sample Spool of L 56 025 MIG Wire 7 Adjustable mixed Gas Regulator Hose 1 The gun is ready to feed 023 025 diameter wire ELECTRIC SHOCK can kill Only qualified personnel should perform this installation Only personnel that have read and under stood the SP 175T Operating Manual should install and operate this equipment Machine must be plugged into a r...

Страница 10: ...he machine may topple over if this procedure is not fol lowed OUTPUT CONNECTIONS Refer to Figure A 2 1 Work Cable Access Hole 2 Gun Cable and Control Lead Access Hole 3 Connector Block 4 Gun Trigger Lead Connectors 5 Positive and negative output terminals 6 Wire Feed Gearbox 7 Cable Hanger 8 Thumbscrew Refer to the Accessories Section for available optional equipment Work Clamp Installation Attach...

Страница 11: ...d up the inside of the case front behind the gas line 3 Insert the connector on the gun conductor cable through the Gun Cable Access Hole 2 in the SP 175T case front Make sure the connector is all the way in the brass connector block to obtain proper gas flow If the gun connector will not fully insert unscrew the thumbscrew on the connector block a few turns Rotate the connector so control leads a...

Страница 12: ...d to the machine Gas Solenoid Inlet Fitting 5 8 18 female threads for CGA 032 fitting Make certain the gas hose is not kinked or twisted 5 Reinstall case side before connecting input power INPUT CONNECTIONS Refer to Figure A 6 The machine has two input connections the power input cable and the Gas Solenoid Inlet Fitting Both are located on the rear of the machine FIGURE A 6 CYLINDER may explode if...

Страница 13: ...curing H3 to lead sleeving and connect H3 to CR1 4 Insulate unused H1 lead for 300V with electrical tape and secure to lead sleeving 5 Reinstall case side before connecting input power Line Cord Connection A 3 conductor line cord with a 50 amp 250 volt three prong plug NEMA Type 6 50P is factory installed Connect this plug to a mating grounded receptacle which is connected to an appropriate power ...

Страница 14: ...ing and the Innershield process self shielded flux cored or FCAW A convenient chart is mounted inside the wire feed section door for setting welding procedures for 24 gauge 60 mm through 5 16 8 0 mm mild steel The machine is rugged and reliable and has designed for dependable service and long life RECOMMENDED PROCESSES The SP 175T can be used for welding mild steel using the GMAW single pass proce...

Страница 15: ...e welding output and wire feeder remain off until the gun trigger is pressed 2 Voltage Control A 5 posi tion tap selector switch gives full range adjustment of power source output voltage Do not switch while welding 3 Wire Speed Control Controls the wire feed speed from 50 400 in min 1 2 10 2 m min The control can be preset on the dial to the setting specified on the SP 175T Application Chart loca...

Страница 16: ...an 8 200 mm diameter spool on the wire spool spindle shown in Figure B 2 To use 4 100 mm diameter spools the 2 50 mm diameter spindle must be removed See Figure B 3 Remove the wing nut and spacer at the end of the shaft and remove the outside plastic wire spool spin dle The spindle can be stored in the wire feed com partment A 4 100 mm diameter spool is mounted directly on the 5 8 16 mm diameter s...

Страница 17: ...tra slack in the wire 6 The idle roll pressure adjustment wing nut is facto ry set to approximately five full turns from where the wing nut first engages the threads of the pres sure arm 1 If feeding problems occur because the wire is flattened excessively turn the pressure adjustment counter clockwise to reduce distortion of the wire Slightly less pressure may be required when using 0 023 0 025 0...

Страница 18: ... gun trigger and then pull the gun away from the work after the arc goes out FIGURE B 6 10 When no more welding is to be done close valve on gas cylinder if used momentarily operate gun trigger to release gas pressure and turn off the SP 175T Cleaning Tip And Nozzle Clean the contact tip and nozzle to avoid arc bridging between the nozzle and contact tip which can result in a shorted nozzle poor w...

Страница 19: ...25 CFH 10 12 I min when welding out of position or in a drafty location 3 Keep the cylinder valve closed except when using the SP 175T When finished welding a Close the cylinder valve to stop gas flow b Depress the gun trigger briefly to release the pressure in the gas hose c Turn off the SP 175T WELDING WITH FCAW Innershield When using the FCAW process the correct drive roll and electrode polarit...

Страница 20: ...B 7 B 7 APPLICATION CHART SP 175T ...

Страница 21: ...See Innershield FCAW Conversion in this sec tion for installation instructions and MAINTE NANCE section for proper feeding component con figuration and installation 3 K664 2 Aluminum Feeding Kit This kit is rec ommended for welding with 035 Aluminum wire Included with this kit are a drive roll cable liner and 035 contact tip It is important when changing between welding with steel wire and aluminu...

Страница 22: ...install gasless nozzle To remove simply unscrew 5 Load wire into machine and thread into gun and cable per Welding Wire Loading section Note 1 The factory installed gun liner will feed 025 035 0 6 0 9mm wire REPLACEMENT PARTS Complete Gun and Cable Assembly L8311 6 K530 4 Contact Tip 025 0 6 mm KP2039 1B1 Contact Tip 030 0 8 mm KP2039 2B1 Contact Tip 035 0 9 mm KP2039 3B1 Contact Tip 045 1 2 mm KP...

Страница 23: ...passages causing the welder to run hot Blow dirt out of the welder with low pressure air at regular intervals to eliminate excessive dirt and dust build up on interval parts WIRE FEED COMPARTMENT 1 When necessary vacuum accumulated dirt from gearbox and wire feed section 2 Occasionally inspect the incoming guide tube and clean inside diameter if necessary 3 Motor and gearbox have lifetime lubricat...

Страница 24: ...gun tube from gun remove gas nozzle or gasless nozzle and remove diffuser from gun tube Remove both collars from each end of the gun handle and separate the handle halves Loosen the locking nut holding the gun tube in place against the gun end cable connector Unscrew gun tube from cable connector To install gun tube screw the locking nut on the gun tube as far as possible Then screw the gun tube i...

Страница 25: ...pring loaded pressure arm 1 and lift the idle roll arm away 2 from the drive roll 3 3 Turn the power switch to ON marked I 4 Set the wire speed to minimum and jog the drive unit with the trigger switch until the drive roll set screw is facing up When inching the welding wire the drive rolls gun connector block and gun contact tip are energized relative to work and ground and remain energized for s...

Страница 26: ...ts the interchangeability of liners Once a liner has been cut for a particular gun it should not be installed in anoth er gun unless it can meet the liner cutoff length requirement Refer to Figure D 2 1 Remove the gas nozzle from the gun by unscrew ing counter clockwise 2 Remove the existing contact tip from the gun by unscrewing counter clockwise 3 Remove the gas diffuser from the gun tube by uns...

Страница 27: ... CAUSE lists the obvious external possibilities that may contribute to the machine symptom Step 3 RECOMMENDED COURSE OF ACTION This column provides a course of action for the Possible Cause generally it states to contact your local Lincoln Authorized Field Service Facility If you do not understand or are unable to perform the Recommended Course of Action safely contact your local Lincoln Authorize...

Страница 28: ...s in the ON position 3 Make sure circuit breaker is reset 1 The thermostat may be tripped due to overheating Let machine cool Weld at lower duty cycle 2 Check for obstructions in air flow 3 Check Gun Trigger connections See Installation section 4 Gun trigger may be faulty RECOMMENDED COURSE OF ACTION Contact your local Lincoln Authorized Field Service Facility OUTPUT PROBLEMS If for any reason you...

Страница 29: ...lity FEEDING PROBLEMS If for any reason you do not understand the test procedures or are unable to perform the tests repairs safely contact your LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed CAUTION PROBLEMS SYMPTOMS Low or no gas flow when gun trigger is pulled Wire feed weld output and fan operate normally POSSIBLE AREAS OF MISADJUSTMENT S 1 Check gas...

Страница 30: ...llation sec tion Electrical Input Connections 2 Check for proper electrode polarity for process 3 Check gun tip for wear or dam age and proper size Replace 4 Check for proper gas and flow rate for process For MIG only 5 Check work cable for loose or faulty connections 6 Check gun for damage or breaks 7 Check for proper drive roll orien tation and alignment 8 Check liner for proper size RECOMMENDED...

Страница 31: ...This diagram is for reference only It may not be accurate for all machines covered by this manual The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels SP 175T SP 175T WIRING DIAGRAM ...

Страница 32: ...NOTES SP 175T ...

Страница 33: ...NOTES SP 175T ...

Страница 34: ...uch electrically live parts or electrode with skin or wet clothing Insulate yourself from work and ground No toque las partes o los electrodos bajo carga con la piel o ropa moja da Aislese del trabajo y de la tierra Ne laissez ni la peau ni des vête ments mouillés entrer en contact avec des pièces sous tension Isolez vous du travail et de la terre Berühren Sie keine stromführenden Teile oder Elekt...

Страница 35: ...für gute Be und Entlüftung des Arbeitsplatzes Mantenha seu rosto da fumaça Use ventilação e exhaustão para remover fumo da zona respiratória Turn power off before servicing Desconectar el cable de ali mentación de poder de la máquina antes de iniciar cualquier servicio Débranchez le courant avant l entre tien Strom vor Wartungsarbeiten abschalten Netzstrom völlig öff nen Maschine anhalten Não oper...

Страница 36: ...s and Service through Subsidiaries and Distributors Worldwide Cleveland Ohio 44117 1199 U S A TEL 216 481 8100 FAX 216 486 1751 WEB SITE www lincolnelectric com World s Leader in Welding and Cutting Products ...

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