Related Manuals for Nelson NS20A
Summary of Contents for Nelson NS20A
- Page 1 NS20A & NS20N Heavy Duty Floating Lift Welding Guns Instruction and Maintenance Manual Version 1.30 December 2008 Manual Part Number 729-110-024...
- Page 2 Nelson’s liability for breach of warranty shall arise only upon return of the defective goods at Buyer’s expense after notice to Nelson of the claimed breach, and shall be limited to furnishing a like quantity of such goods free from such defects or, at Nelson’s option, to refunding the purchase price (less reasonable depreciation based on actual use);...
-
Page 3: Table Of Contents
Installing New Control Cables -Welding Gun #751-535-100................... 13 Installing New Control Cables -Welding Gun #751-535-500 & #751-693-000..............13 Installing New Weld Cables -All Guns ..........................14 DIMENSIONS AND SPECIFICATIONS..........................15 NS20A & NS20N Heavy Duty Gun Page 1 Revision 1.20 2/19/08... -
Page 4: Gun Setup For Welding Steel Studs
(Figure 1). 2. When plunge is adjusted, tighten the leg screws so that the Foot Assembly cannot move. Note: It is necessary to adjust plunge when changing stud lengths. NS20A & NS20N Heavy Duty Gun Page 2 Revision 1.20 2/19/08... -
Page 5: Lift Adjustment
Note: Triggering the gun in the air away from the work surface will cause the gun to lift. The lift in open air will be greater than when the gun is in the actual or simulated weld condition. NS20A & NS20N Heavy Duty Gun Page 3 Revision 1.20 2/19/08... -
Page 6: Series 4800 & Series 5000 (Tr-1600)
Recommended Lift Settings for Steel Studs actual or simulated weld condition. For welding: ½” diameter studs or less.........1/16” ⅝” and ¾” diameter studs .......3/32” ⅞” diameter studs and over ....7/64” to 1/8” NS20A & NS20N Heavy Duty Gun Page 4 Revision 1.20 2/19/08... -
Page 7: Series 3000 (Ns-20A Hd)
⅞” diameter studs and over ....7/64” to 1/8” therefore, it is suggested that a minimum of 65 volts open circuit voltage be used when checking lift or operating the stud welding equipment. NS20A & NS20N Heavy Duty Gun Page 5 Revision 1.20 2/19/08... -
Page 8: Weld Inspection
2. Torque Test - Stud shall be torqued until a pre- specified loading is attained or until the stud fails or, on thin plate, a plug of the base material should tear out. NS20A & NS20N Heavy Duty Gun Page 6 Revision 1.20 2/19/08... -
Page 9: Sequence Of Operations
“plunges” the molten end of the stud into a pool of molten metal on the base plate, thus completing the weld. Figure 6: Gun mechanism in lifted position NS20A & NS20N Heavy Duty Gun Page 7 Revision 1.20 2/19/08... -
Page 10: Exploded View
MAINTENANCE INSTRUCTIONS Exploded View Figure 7 NS20A & NS20N Heavy Duty Gun Page 8 Revision 1.20 2/19/08... -
Page 11: Parts List
8-32 x 1/4 Flat Pt. Soc. Set Screw 524-002-005 5/16-18 x 3/8 Flat Pt. Soc. Set Screw 524-002-011 * 13a is normally part of 13 but can be purchased separately. NS20A & NS20N Heavy Duty Gun Page 9 Revision 1.20 2/19/08... -
Page 12: Maintenance Instructions
MAINTENANCE INSTRUCTIONS Part Number Designation The Nelson Heavy Duty handgun has been designed for use with various Nelson Stud Welding Systems. The basic construction of the gun remains the same - only the control cable and trigger switch assembly change for proper interconnection with the control unit. -
Page 13: Disassembly Of Gun
Ring Core Spring 526-001-192 Lifting Hook & Movable Core 751-535-026 Assembly Lifting Ring 751-535-022 Lifting Module Stop 751-535-023 Internal Retaining Ring 717-881-003 Figure 8: Explosion diagram of Lifting Module NS20A & NS20N Heavy Duty Gun Page 11 Revision 1.20 2/19/08... -
Page 14: Examination And Cleaning Of Gun Parts
(18d) with the flat side of the ring plunge, free travel, and lift. towards the lifting hook and movable core assembly. 8. Replace rear cover (3) and secure with screw (35). NS20A & NS20N Heavy Duty Gun Page 12 Revision 1.20 2/19/08... -
Page 15: Installing New Control Cables -Welding Gun #751-535-000
Install cable into gun 4. Remove cable spacer (21) from old control handle. Reinstall handle cover (16) and secure cable and install on new control cable. with screws (36) and (37). NS20A & NS20N Heavy Duty Gun Page 13 Revision 1.20 2/19/08... -
Page 16: Installing New Weld Cables -All Guns
The end of the Neoprene tubing is to be flush with the cable support. Reassemble the cable support. NS20A & NS20N Heavy Duty Gun Page 14 Revision 1.20 2/19/08... -
Page 17: Dimensions And Specifications
10 lbs. 8 oz. Shipping Weight: Includes standard legs and foot plus approximately 7 feet of cable with connectors normally supplied with gun..........14 lbs. 8 oz NS20A & NS20N Heavy Duty Gun Page 15 Revision 1.20 2/19/08... - Page 18 The operator should read and understand these precautions and be trained or experienced In the installation, operation, and maintenance procedures provided in this Nelson manual. Electrical: Remember, electric shock can kill! Properly install and use stud welding systems in accordance with the National Electrical Code NFPA-70 and local codes.
- Page 19 Westfield, IN 46074 2907 Semmes Avenue Winston-Salem, NC 27113 E-mail Richmond, VA 23225 Phone: 800.635.9353 Phone: 800.635.9353 Nelson.Sales@NelsonStud.com Phone: 800.635.9353 Printed in USA IDD 6-01 *Warehouse ** Manufacturing Facility NS20A & NS20N Heavy Duty Gun Page 17 Revision 1.20 2/19/08...