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9

LDC-NA3S  NA-3 WIRE FEEDER CONTROLS, CONT’D. 

NOTE:

  For further information refer to Lincoln Electric NA-3 Operator’s Manual.

A.  AMMETER

Indicates current only while welding.

B.  CIRCUIT BREAKER

Protects the circuit from sever wire feed motor overload and short circuits.  Press to reset. 

 

Locate and correct the cause for overload.   

C.  VOLTMETER (Standard)

Indicated welding voltage only while welding.  Also indicates OCV below 60 volts.

D.  START

Push-button beings the welding cycle

E.  STOP

Push-button initiated the stopping cycle at the end of the weld.  

F.  INCH UP & INCH DOWN

Press to inch electrode at the speed set by “Inch Speed” control on inner panel.

G.  CURRENT CONTROL

 

Adjusts wire feed speed to control welding current.    

H.  TRAVEL

Turn to “Off” for no travel; “Hand Travel” for travel without welding; “Automatic Travel” for 

welding operations.  Speed and direction of travel are controlled by the travel mechanisms 

control.  

I.   VOLTAGE CONTROL

Adjust arc volts by controlling power source output voltage.  

J.  CONTROL POWER

Turns input control  power “On” and “Off”.  Also used as an emergency “Off” in case of 

malfunction.          

*For further information on NA-3 Wire Feeder and controls, refer to Lincoln Electric NA-3 

Wire Feeder Operators Manual.

Summary of Contents for CW-18

Page 1: ...ressweld com INSTRUCTIONS AND PARTS MANUAL CW 18 CIRCLE WELDER Please record your equipment identification information below for future reference This information can be found on your machine nameplat...

Page 2: ...ever remove or bypass the equip ment power cord ground Verify the equipment is grounded in accordance with all applicable local and national electrical safety codes If none exist use International Ele...

Page 3: ...s as small as possible The larger the gap the higher the voltage and the higher the interference 5 Some plasma or welding units will inject high frequency interference into the AC power line Use separ...

Page 4: ...4...

Page 5: ...List 21 CWO 3531 Motor Transmission Plate Assembly Exploded View Parts List 22 CWO 3534 Slide Bar Assembly Exploded View Parts List 22 CWO 3537 Guard Assembly CW 18 Exploded View Parts List 23 CWO 353...

Page 6: ...back Weld contact Cold wire switch Weld start parameter adjustment Weld Crater parameter adjustment SET UP AND OPERATION POWER SOURCE Please refer to the included Lincoln NA3 user s manual for welding...

Page 7: ...e the components out of alignment The wheels should be snug but not prohibit movement along the path of travel The wheels with the hex stand offs are adjustable To adjust the wheels loosen the hex bol...

Page 8: ...8 A B C J I H D E G F LDC NA3S NA 3 WIRE FEEDER CONTROLS A Ammeter B Circuit breaker C Voltmeter D Start E Stop F Inch up and inch down G Current control H Travel I Voltage control J Control power...

Page 9: ...stopping cycle at the end of the weld F INCH UP INCH DOWN Press to inch electrode at the speed set by Inch Speed control on inner panel G CURRENT CONTROL Adjusts wire feed speed to control welding cur...

Page 10: ...points only TRAVEL DIRECTION Controls the direction in which the machine will travel Select forward for clockwise rotation brake for stop and reverse for counterclockwise rotation ON OFF SWITCH The on...

Page 11: ...7 32 1 6 5 6 mm Rotation Speed 06 72 rpm Cam Range 0 7 0 175 mm Welding Radius 0 25 0 635 mm Shielding Gas Solenoid Control Height 43 1092 mm Net Weight 360 lbs 163 6 kg Shipping Weight 490 lbs 222 3...

Page 12: ...WELDMENT 17 1 CWO 3313 BRUSH HOLDER SUPPORT 18 1 CWO 3359 TRANSMISSION SW 5 1 ASSEMBLY 19 1 CWO 3432 CW 18 SHAFT ASSEMBLY 20 1 CWO 3498 11 WIRE REEL ASSEMBLY CW 18 21 1 CWO 3506 4066 MOTOR ASSEMBLY 22...

Page 13: ...13 CWO 1800 CW 18 CIRCLE WELDER EXPLODED VIEW 12 16 15 25 33 34 3 10 17 14 24 26 27 28 29 12 31 19 30 35 2 4 5 12 38 22 1 9 13 8 18 22 6 7 36 20 21 23 32 37...

Page 14: ...lder Support CWO 3313 5 4006 Motor Assy CWO 3506 6 NA 3 Wire Feeder Control LDC NA3S 7 Small Retainer Brush CWO 3931 8 Terminal Block Assy CWO 3969 9 Weld Cable 4 0 CWO 3970 10 Weld Cable Inlet 4 0 CW...

Page 15: ...CARTA SLEEVE 495 O D X 391 I D X 8 000 LG 10 1 CWO 5770 MICARTA SLEEVE 1 875 O D X 1 5000 I D X 7 750 LG 11 1 CWO 6068 PANEL CONNECTOR 9 T M 12 4 FAS 0205 RND HD SCR 4 40 X 1 2 13 4 FAS 0215 RND HD SC...

Page 16: ...141 BEARING COLLET 13 1 MUG 1142 KNOB LOCKING 14 1 MUG 1144 SHAFT 15 2 MUG 1453 STAND OFF 16 1 MUG 1579 RETAINING RING 17 3 WAS 0240 1 4 SAE WASHER F FIXED WHEEL PLACEMENT A ADJUSTABLE WHEEL PLACEMENT...

Page 17: ...MBER DESCRIPTION 1 2 BUG 2098 DELRIN WASHER 3 8 2 1 BUG 9012 LOCKING COLLAR 3 2 CWO 4027 END PLATE 4 CAM 4 1 CWO 4330 CENTER BLOCK 625 BORE 5 1 CWO 4032 KNOB 6 1 CWO 4328 BASE PLATE ROD 7 1 CWO 4331 S...

Page 18: ...P SCR 1 4 20 X 3 4 10 1 FAS 3304 HEX HD CAP SCR 1 2 13 X 4 11 4 WAS 0243 1 4 SPLIT LOCKWASHER 12 3 WAS 0280 1 2 SAE WASHER 13 3 WAS 0281 1 2 SPLIT LOCKWASHER ITEM QTY PART NUMBER DESCRIPTION 1 1 CWO 4...

Page 19: ...2 CWO 4507 O RING OXYGEN GAS 3 1 CWO 5779 SHAFT CW 18 CWO 3490 FLUX HOPPER ASSEMBLY EXPLODED VIEW PARTS LIST ITEM QTY PART NUMBER DESCRIPTION 1 1 CWO 3757 HOPPER SUPPORT ROD 2 1 CWO 3760 CLAMP BLOCK...

Page 20: ...X HD CAP SCR 1 2 13 X 1 3 4 5 2 WAS 0281 1 2 LOCK WASHER CWO 3506 4066 MOTOR ASSEMBLY EXPLODED VIEW PARTS LIST ITEM QTY PART NUMBER DESCRIPTION 1 1 CWO 3620 MOTOR MOUNT BRACKET 2 1 CWO 4846 RIGHT ANGL...

Page 21: ...HER CWO 3531 MOTOR TRANSMISSION PLATE ASSEMBLY EXPLODED VIEW PARTS LIST ITEM QTY PART NUMBER DESCRIPTION 1 1 BUG 1338 I D PLATE 2 1 CWO 5788 COVER PLATE 3 1 CWO 5887 MOTOR TRANSMISSION PLATE 4 1 CWO 5...

Page 22: ...CAP SCR 3 8 16 X 1 4 4 FAS 2372 HEX HD CAP SCR 5 16 18 X 1 1 4 5 4 WAS 0251 5 16 SPLIT LOCKWASHER 6 2 WAS 0262 3 8 SPLIT LOCKWASHER CWO 3537 GUARD ASSEMBLY CW 18 EXPLODED VIEW PARTS LIST ITEM QTY PART...

Page 23: ...ON 1 1 CWO 4352 BALL JOINT END 3 8 16 R H 2 1 CWO 5042 BALL JOINT END 3 8 16 L H 3 1 CWO 9081 SPACER CW 18 4 1 CWO 9353 PIPE FOR CAM SHAFT CW 18 5 1 FAS 0399 HEX HD CAP SCR 3 8 16 X 1 6 2 FAS 1395 HEX...

Page 24: ...0359 SOC HD CAP SCR 10 24 X 1 9 1 FAS 0593 SOC HD CAP SCR 3 8 16 X 1 1 2 10 12 TERM WTE 1508 8 FORK BLUE 11 1 WAS 0260 3 8 SAE WASHER 12 1 WAS 0262 3 8 SPLIT LOCKWASHER CWO 3931 SMALL RETAINER BLOCK...

Page 25: ...LE 2 1 BUG 5552 B CABLE CLAMP 3 1 BUG 6069 P CABLE CONNECTOR 9 T F 4 9 TERM WTE 0602 6 FORK BLUE CWO 2978 FEEDER CONTROL BOX CABLE DETAIL VIEW PARTS LIST ITEM QTY PART NUMBER DESCRIPTION 1 32 900 4 01...

Page 26: ...LAR W SET SCREW 3 2 CWO 5773 INSERT 1 1 2 OD 4 1 CWO 9230 SPRING RETAINER ANGLE 5 1 FAS 0357 HEX HD CAP SCR 1 4 20 X 3 4 6 2 FAS 0555 SOC HD CAP SCR 1 4 20 X 1 2 7 1 FAS 1351 HEX NUT 1 4 20 8 2 FAS 26...

Page 27: ...3 6 FAS 0115 6 32 x 1 2 Pan Head Zinc 14 6 FAS 1310 Hex Nut 6 32 15 2 FHO 0188 Fuse Holder 16 1 MPD 1026 Fuse 2 Amp 17 1 FUS 0257 Fuse 3 Amp 18 1 MUG 1258 1 Rotary Switch Assembly 19 10 SCW WTE 0264 6...

Page 28: ...INDICATES ITEMS THAT ARE SUPPLIED TOGETHER ELECTRICAL COMPONENT CHART ITEM DESCRIPTION PART NUMBER 1 Toggle Switch ARM 2279 2 Red Neon Lamp CWO 6206 3 Speed Control Board w Resistor CWO 6525 4 Fuse 2...

Page 29: ...XT 3835 IN FIBER INSULATOR 12 1 BUG 3161 P CONE BODY ASSEMBLY 13 1 BUG 3163 LOCKING FERRULE 14 1 BUG 3164 FLUX CONE KP2085 1 15 1 BUG 3165 RETAINING NUT WIRE SIZES AVAILABLE PART WIRE SIZE CWO 3690 1...

Page 30: ...0 ASSY 72 1829 mm LG 6 1 CWO 3690 1 8 SUB ARC NOZZLE 1 8 1 CWO 3690 3 16 SUB ARC NOZZLE 3 16 1 CWO 3690 5 32 SUB ARC NOZZLE 5 32 7 1 CWO 3491 48 FLUX HOSE 3 4 ID x 1 OD 8 1 FAS 0452 SET SCR 1 4 20 X...

Page 31: ...der on nozzles with or without flanges As shown below PART NUMBER FOR NOZZLE I D S WEIGHT CWO 3660 2 8 51 204 mm 68 lbs 31 kg CWO 3661 8 16 204 405 mm 36 lbs 16 kg CWO 3362 10 24 255 610 mm 51 lbs 23...

Page 32: ...1 ABR 1050 MH MOTORIZED HORIZONTAL V GUIDE WAYS 40 2 1 ABR 1060 MV MOTORIZED VERTICAL V GUIDE WAYS 33 3 1 CWO 1675 MV MOTORIZED VERTICAL RACKER 4 1 CWO 1695 ATTACHMENT BLOCK 5 1 CWO 3023 1 TORCH ANGL...

Page 33: ...CWO 9065 T 3 Track 36 Lg 10 1 CWP 3356 Horiz P M Motor Bracket 970 Mod 11 6 FAS 1301 Hex Nut 1 2 13 12 2 WAS 0281 1 2 Split Lockwasher Zinc Plated 13 4 WAS 0280 1 2 SAE Flat 14 4 FAS 2591 SS Soc Hd Ca...

Page 34: ...34 OPTIONAL MOTORIZED RACKING EQUIPMENT PRS 1075 EXPLODED VIEW PARTS LIST...

Page 35: ...BUG 1411 HOLD DOWN SPRING 1 10 BUG 1384 RELAY SOCKET SPRING 1 11 BUG 1383 RELAY 4PDT 3A 120V PLUG IN 1 BUG 1551 RELAY 3A 240VAC 1 BUG 9636 RELAY 48VAC 1 12 BUG 9902 PANEL CONNECTOR 6 T F 1 13 CAS 1770...

Page 36: ...36 OPTIONAL MOTORIZED RACKING EQUIPMENT PRS 1091 WD WIRING DIAGRAM PARTS LIST...

Page 37: ...tor is fastened properly to the large aluminum gear item 34 on the CW 18 Exploded View Parts List NA 3 Control Cables For all cables leading to NA 3 Control box inspect cable connector to make sure th...

Page 38: ...ock Item 8 Inspect the plastic terminal strip and make sure it is not cracked replace if necessary Make sure all terminal connections are tight Make sure all ground wires are connected to the mount in...

Page 39: ...e tie Tighten four set screws if needed Weld Cable Inlet 4 0 Item 10 Ensure that the cable is fastened tightly to the collector ring Inspect the cable for cut or missing insulation Make sure the micar...

Page 40: ...er obligations or liabilities whatsoever with respect to machines or parts furnished by Manufacturer Manufacturer shall not in any event be liable to Distributor or any customer for any loss of profit...

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