Lincoln Electric IM790 manual Welding Operations, Sequence of Operation, Wire Loading

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B-3

OPERATION

B-3

1

2

WELDING AMP RANGE 25-125

3

SP-175 Plus

FIGURE B.1a

Refer to Figure B.1b

4.Circuit Breaker – Protects machine from damage if maximum output is exceeded. Button will extend out when tripped (Manual reset).

FIGURE B.1b

WELDING OPERATIONS

SEQUENCE OF OPERATION

Wire Loading

Refer to Figure B.2 and B.3.

The machine power switch should be turned to the OFF (“O”) position before working inside the wire feed enclosure.

The machine is shipped from the factory ready to feed 8” (200 mm) diameter spools [2.2” (56 mm) max. width]. These spools fit on a 2” (50 mm) diameter spindle that has a built-in adjustable friction brake to prevent overrun of the spool and excess slack in the wire.

Note: When loading and removing the 8” Spools make sure that the wing nut (inside the wire spool spindle hub) is turned 90° from the wire spool spindle locking tab. If the wing nut is positioned in line with the locking tab, the tab cannot be depressed to load or unload the wire spool.

Load 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 shaft and held in place with the previously removed hardware. Also make certain the start end of the wire, which may pro- trude through the side of the spool does not contact any metallic case parts.

FIGURE B.2

Wire Spool Spindle

Locking Tab

8” Wire Spool

Be sure that this stud engages

the hole in the wire spool.

Thumb

Screw

To wire drive

Wire Spool must be pushed all the way on the spindle so that the spindle’s tab will hold it in place. The Wire Spool must rotate clock- wise when wire is dereeled.

SP-175 PLUS

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Contents SP-175 Plus Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcPlease Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents Installation Identify and Locate Components Safety PrecautionsElectric Shock can kill Work Clamp Installation Work Cable InstallationSelect Suitable Location StackingConnecting Gun Cable to the SP-175 Plus GUN InstallationGAS Connection Gas Solenoid Inlet Fitting Power Input Cable Input ConnectionsElectrical Input Connection for Rated Output Line Cord ConnectionVolt Input Connection Observe all safety information throughout this manual OperationFumes and Gases can be dangerous Welding Sparks can cause fire or explosionControls and Settings Design Features AdvantagesGeneral Description Welding CapabilityWelding Operations Wire LoadingSequence of Operation Friction Brake Adjustments Wire ThreadingShielding Gas Making a WeldCleaning Tip And Nozzle Changing Machine Over to Feed Other Wire SizesProcess Guidelines Wire Feed Overload Protection Overload ProtectionOutput Overload Thermal ProtectionApplication Chart Optional Accessories AccessoriesK586-1 Deluxe Adjustable Gas Regulator & Hose Kit Replacement Parts Innershield Fcaw ConversionMaintenance Maintenance Safety PrecautionsItems Requiring no Maintenance Routine and Periodic MAINTE- NanceGUN and Cable Maintenance Configuration of Components in Wire Feeding SystemFor Magnum 100L GUN Contact Tip Cable Liner Drive RollChanging Drive Roll Changing the Contact TIPRoll onto the drive shaft SP-175 Plus Changing Liner Liner trim lengthGUN Handle Parts Figure D.3 SP-175 PlusTroubleshooting HOW to USE Troubleshooting GuideProblems Possible Symptoms Cause Recommended Course of ActionGAS Flow Problems Welding Problems Wiring Diagrams Page Precaucion Warnung