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Model 7100 Portable Pin Welder 

 
 

 

SETUP and OPERATION

 

 
1.  Attach the spring loaded ground clamp to the work table or directly to the duct.  Insure the    
      connection is clean and free of foreign material or weld quality will be compromised. 
 
2.   Plug the welder into a proper electrical outlet and adjust the “Weld Time”  to number “5”. 
  
3.   Use duct liner and a piece of scrap metal of the same gage for the following test.  
 
4.   Place a weld pin on the gun’s magnetic weld tip.   
  
5.  Press the pin into the liner, making contact with the metal using a twisting motion, then    
      apply moderate pressure prior to activating and throughout the weld cycle.     
 
6.   Pull and hold the trigger to start and continue the weld cycle.  The green “WELD ON”      
      light will turn ON during the weld cycle and will automatically go OFF.  
  
7.   Release the trigger, lift the gun from the metal, then repeat the process with a new pin. 
  
8.   Test weld several pins in this manner and adjust the “Weld Time” to the lowest setting      
      required to give good weld results.  

 
 
 
 

MAINTENANCE 

 

 The Model 7100 Portable Pin Welder requires very little maintenance due to it’s solid state 
circuitry and design. We do, however, recommend the following procedures periodically. 
  

CAUTION:  Turn welder OFF and disconnect from electrical supply before 
any maintenance or service is performed. 

 
1.  Remove all accumulated insulation dust and foreign debris from inside the welder. 
 
2.  Tighten all mounting hardware on solid state circuit components, transformers, cable con-

nections to weld transformer, ground clamp, weld gun and control cable. 

 
3.  Using a steel wire brush, clean the contact surfaces of the spring loaded ground clamp. 
 
4.  Clean and inspect the magnetic weld tip. Replace if badly burned, deeply pitted or if the     
      magnetism is too weak to properly hold a weld pin. 
 
5.  Carefully inspect and tighten all cable strain reliefs.  

Note

: On the weld gun assembly, the    

      weld cable should take the heavy strain load, not the lighter control cable. 

Summary of Contents for 7100

Page 1: ...R S MANUAL Copyright March 22 2005 Revised December 20 2016 Gripnail Corporation An Employee Owned Company________________________ 97 Dexter Road East Providence Rhode Island 02914 2045 Tel 800 474 7624 Fax 401 438 8520 E mail gripnail gripnail com Website www gripnail com ...

Page 2: ...CRIPTION 4 SPECIFICATIONS 4 INSTALLATION 5 CHANGING SUPPLY VOLTAGE transformer TAP 5 SETUP and OPERATION 6 MAINTENANCE 6 WELDER PARTS IDENTIFICATION 7 9 PIN WELDING GUN PARTS IDENTIFICATION 10 11 WIRING DIAGRAM PARTS LEGEND 11 WIRING DIAGRAM 12 SERVICE POLICY 13 WARRANTY 14 ...

Page 3: ...ding process could cause flash burns to your eyes and could cause blindness 4 WEAR protective clothing to prevent skin burns from weld slag 5 DO NOT TOUCH the pin or adjacent area after welding until sufficient time is al lowed for cooling Otherwise serious burns may result 6 DO NOT OPERATE the welder unless all covers are in place 7 DO NOT PULL or move the welder by the attached cables or damage ...

Page 4: ... with a trigger switch and extra long cables Weld ing current is not available at the gun until the weld pin contacts the sheet metal The weld relay and weld timer operations may be tested by activating the trigger without the pin touch ing the sheet metal The WELD ON light will turn ON as well as the weld transformer for up to 1 5 seconds or equal to the weld time control setting SPECIFICATIONS I...

Page 5: ...is plug permits connection to standard 3 phase receptacles commonly used is most sheet metal fabrication shops CHANGING THE SUPPLY VOLTAGE transformer TAP CAUTION Unplug the welder from the electrical power before removing the cover After the tap change is completed fully reassemble cover prior to plugging it into the electrical power source 1 The voltage tap is factory set for 208 230 volts 2 Rem...

Page 6: ...pin 8 Test weld several pins in this manner and adjust the Weld Time to the lowest setting required to give good weld results MAINTENANCE The Model 7100 Portable Pin Welder requires very little maintenance due to it s solid state circuitry and design We do however recommend the following procedures periodically CAUTION Turn welder OFF and disconnect from electrical supply before any maintenance or...

Page 7: ...der with the cover removed Possible injury or accidental electrical shock may result WELD CABLE LUG GROUND WELD TIMER U1 CONTROL TRANSFORMER T2 WELD RELAY U2 POWER SUPPLY RECTIFIER ASSEMBLY ON OFF SWITCH WELD TRANSFORMER T1 WELD CABLE LUG GUN TERMINAL BLOCK POWER SUPPLY WIRE PART NO 20 TERMINALS 2 3 4 FOR INPUT VOLTAGE TAP SETTINGS Refer to page 5 ...

Page 8: ...Model 7100 Portable Pin Welder 8 ...

Page 9: ...4 20 x 3 4 17 1216 M 10 Nut hex 1 4 20 18 2039 M 12 Washer flat 1 4 19 2029 M 6 Washer split 1 4 20 2343 E 7 5 Cord 12 3 AC line 21 2732 M 1 Strain relief AC line 22 1211 M 5 Nut hex 10 32 23 1230 M 5 Washer lock 10 24 2739 E 1 Block 8 terminal 25 2734 E 1 Switch ON Off S1 26 2295 E SN 2 Nut speed 27 2887 M 1 Insulator 28 GN P N 51402 1 Potentiometer 29 2301 M 4 Feet 30 2730 M 1 Strain relief grou...

Page 10: ... will be com promised Check the tip condition often for wear and clean with a steel wire brush to remove glue buildup and burning as necessary Replace when it be comes badly pitted or the magnets fail to hold a pin SET SCREW To replace the tip loosen the two set screws and pull the tip out Insert the new tip then tighten both screws COMPLETE HANDLE ASSEMBLY GN P N 51384 ...

Page 11: ...71 1 Shaft gun 12 1213 M 0250 2 Screw set 13 2065 M 0500 1 Screw set 14 GN P N 51372 1 Housing gun 15 GN P N 51384 1 Handle With Item 10 16 GN P N 42469 1 Magnetic Tip Parts Identification Weld Gun Wiring Diagram Parts Legend Symbol Part number Description C1 Part of GN P N 51366 Capacitor filter D1 Diode D2 Diode zener GB GN P N 51308 Switch gun trigger L1 2703 E Light power ON L2 2295 E Light we...

Page 12: ...rtable Pin Welder 12 WIRING DIAGRAM T1 L2 U2 D1 D2 C1 R1 T2 GB L1 S1 LINE VOLTAGE 190 240 VOLTS AC 60 HZ 30 AMPS SINGLE PHASE U1 Tap is factory set to 208V 3 Shown in 190V position 2 Refer to page 5 for instructions ...

Page 13: ...ginal parts are returned to Gripnail for inspection and do not shown signs of abuse Normally replaceable components such as weld tips are considered consumables and are without warranty All warranties on Gripnail equipment are good only if Gripnail fasteners are used If it is de termined that fasteners other than those manufactured by Gripnail have been used the war ranty is voided At Gripnail we ...

Page 14: ...ice personnel that the equipment has been subjected to misuse negligence or accident If it is determined that any fasteners other than those manufac tured by Gripnail have been used in this machine or tool the warranty is terminated This warranty is not effective unless equipment is properly registered with the factory through the use of warranty information card prior to use Gripnail Corporation ...

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