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                        spot welder
230 volt
Model 45690
asseMbly and operating instructions
v isit our website at: http://www.harborfreight.com
 read this material before using this product. 
Failure to do so can result in serious injury. 
save this Manual.
© ®
Copyright 2001 by Harbor Freight Tools .  All rights reserved.  No portion of this manual or any artwork 
contained herein may be reproduced in any shape or form without the express written consent of Harbor 
Freight Tools.  Diagrams within this manual may not 
                    
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                        SPECIFICATIONS TABLE iteM description Electrical Input Requirements 230 Volt Rated Output 1.5 KVA @ 50% Duty Cycle Output Amps 5,500  +/- 10% Material Capacity 1/8” Thick, Mild Steet Tong Length 6” Overall Dimensions 13” x 6” x 4.5” Net Weight 23.5 Lbs. SAVE THIS MANUAL You will need this manual for the safety warnings and precautions, assembly,  operating, inspection, maintenance, and cleaning procedures, parts list and assembly  diagram.  Keep your invoice with this manual.  Write the invoice 
                    
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                        8. DO NOT OVERREACH.  Keep proper footing and balance at all times to prevent  tripping, falling, back injury, etcetera. 9. STAY ALERT.  Watch what you are doing at all times.  Use common sense.  Do not  use this product when you are tired or distracted from the job at hand. 10. CHECK FOR DAMAGED PARTS.  Before using this product, carefully check that it  will operate properly and perform its intended function.  Check for damaged parts  and any other conditions that may affect the operation of t
                    
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                        5. DO NOT FORCE THE EQUIPMENT.  This Spot Welder will do the work better and  safer at the speed and capacity for which it was designed. 6. AVOID UNINTENTIONAL STARTING.  Make sure you are prepared to begin work  before turning the Control Switch (part #25) “ON”. 7. Caution:  Never touch the Upper and Lower Tongs (parts #46, #47) when welding a  workpiece.  Allow the Tong Tips (part #48) and the workpiece to cool before handling.   (See Figures A, B, E, and Assy. Diagram.) 8. MAKE SURE THE WORKP
                    
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                        UNPACKING When unpacking, check to make sure all parts shown on the Parts List (page 12) are in- cluded.  If any parts are missing or broken, please call Harbor Freight Tools at the number  shown on the cover of this manual as soon as possible. ASSEMBLY INSTRUCTIONS NOTE:  For additional references to the parts listed below, refer to the Assembly  Diagram on page 13 of this manual. To Attach The Upper And Lower Tongs: 1. Caution:  Prior to attaching the Upper and Lower Tongs (parts #46, #47), ma
                    
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                        10. Re-tighten the four Cap Screws (parts #3, #11). CAP SCREW OPERATING (#3) LEVER (#5) TOP TONG HOLDER (#12) BOTTOM TONG CLAMP (#35) UPPER TONG HEX JAM NUT (#10) (#46) HEX JAM NUT (#10) TONGTIP  HEX NUT (#20) (#48) TOP TONG TONG  CLAMP (#13) INSULATOR  (#33) LOWER TONG (#47) CAP SCREW  (#34) FIGURE A TONG ALIGNMENT UPPER TONG (#46) UPPER TONG (#46) TONG TIPS (#48) TONG TIPS (#48) LOWER TONG (#47) LOWER TONG (#47) FIGURE B To Attach The Handle To The Spot Welder: 1. To attach the Wooden Handle (
                    
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                        2. Next, Attach the complete Handle Assembly (parts #17, #18, #19, #20) to the Front  Housing (part #28) of the Spot Welder, using the four Hex Head Screws (part #16).   (See Figure D, and Assy. Diagram.) WASHER HANDLE (#17) BOLT (#19) HEX NUT HANDLE BRACKET (#20) (#18) FIGURE C POWER SWITCH (#25) (#25) HEX SCREW (#16) FIGURE D To Attach Tong Tips To The Spot Welder: 1. Caution:  Prior to attaching the Tong Tips (parts #48), make sure the Spot Welder  is disconnected from its electrical power so
                    
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                        OPERATING INSTRUCTIONS NOTE:  For additional references to the parts listed below, refer to the Assembly  Diagram on page 13 of this manual. To Adjust The Tong And Operating Lever Pressure: 1. Caution:  Prior to adjusting the Tongs (parts #46, #47) and Operating Lever (part  #5) pressure, make sure the Spot Welder is disconnected from its electrical supply  source. 2. NOTE:  Excessive Tong (parts #46, #47) can damage the Tong Tips (part #48).   Do not use the Tongs as a clamp or vice to hold the
                    
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                        OPERATING LEVER (#5) REAR HEX JAM  CAP SCREW NUT (#10) (#3) FRONT HEXT JAM  NUT (#10) UPPER TONG (#46) HEX NUT (#20) TONG TIP (#48) LOWER TONG (#47) FIGURE F To Use The Power Switch: 1. The Power Switch (part #25) allows electrical current to the Spot Welder to be turned  “ON” and “OFF”.  (See Figure D, and Assy. Diagram.) 2. Turn the Power Switch (part #25) sideways in either direction to start the electrical  current.  Release the Power Switch to stop the electrical current. To Use The Operati
                    
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                        RECOMMENDED PRACTICES FOR SPOT WELDING LOW-CARBON STEEL TROUBLE SHOOTING GUIDE INSPECTION, MAINTENANCE, AND CLEANING 1. Caution:  Always disconnect the Spot Welder from its electrical power supply source  before performing any inspection, maintenance, or cleaning. 2. Before each use, inspect the general condition of the Spot Welder.  Inspect switch,  power plug and cord assembly, and extension cord (if used) for damage.  Check for  loose screws, misalignment, binding of moving parts, broken part
                    
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                        3. Do not use solvents to wipe off the Spot Welder, as damage may result.  If necessary,  wipe with a damp cloth.  You may use a mild detergent. 4. Once clean, lubricate all moving parts with a light oil. 5. When storing, keep the Spot Welder in a box or covered with a cloth cover. PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM  IN THIS MANUAL AS A REFERENCE TOOL ONLY.  NEITHER THE MANUFACTURER NOR  DISTRIBUTOR MAKES ANY REPRESENTATION OR W
                    
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                        PARTS LIST Part # Description Qty. 1 Handle, Carrying 1 2 Nut 1 3 Screw  Cap Stl Sch .250-20 x 1.250 7 4 Wiring Harness, Switch 1 5 Lever, Operating 1 6 Pin, Spring CS .312 x 1.750 1 7 Link, Tgl Connecting 2 8 Pin, Spring CS .312 x 1.250 1 9 Bolt, Pressure Adjustment 1 10 Nut, Stl Hex Jam .437-20 2 11 Screw, Cap Stl Sch .250-20 x 1.500 2 12 Holder, Tong Top 1 13 Clamp, Tong Top 1 14 Braid, Tong Set of Four 1 15 Clamp, Connecting Top Tong Braid 1 16 Screw, .250-20 x 1.000 Soc. Hex Head 8 17 Handl
                    
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                        ASSEMBLY DIAGRAM NOTE:  Some parts are listed and shown for illustration purposes only, and are not  available individually as replacement parts. SKU 45690     PAGE 13                                                                                                                                                                                                                                                                                                                                             
                    
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                        liMited 1 year / 90 day warranty Harbor Freight Tools Co. makes every effort to assure that its products meet high  quality and durability standards, and warrants to the original purchaser that for a period  of ninety days from date of purchase that the torch, liner, wire feed mechanism (if appli- cable), welding clamps, electrode holders, cables and accessories packed with the welder  are free of defects in materials and workmanship. This Limited 90 Day/1 Year Warranty  shall not apply to consu