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SKU 94739 

For technical questions, please call 1-800-444-3353

 

 

Page 10

 

NOTE:

 

Duty Cycle is the percentage of 10 minutes the welder can be in operation 

without overheating.

 15% duty cycle means that the welder can be energized 

approximately 1-½ minutes out of each 10 minute period. 40% duty cycle means the welder 
can be energized approx. 4 minutes out of each 10 minute period.

Control Panel

 

1. 

Function Selector (1): 

 

a) 

Continuous Operation

 is used for Carbon warming 

and tempering of work material. 
b) 

Timed Operation

 is used for washer or needle 

welding. 
c) 

OFF

 to turn off power supply to welder.

2. 

Timer Control (2): 

Sets the duration of the pulse 

during timed welding operation. Settings range from 0 
to 1.2 seconds.

3. 

Power light (3):

 indicates that power is supplied to 

the welder.

4.   

Thermostat light (4):

 comes on if overheat cutoff 

function is active.

5.   

Working light (5):

 indicates that welding operation is in process.

Installing the Welding Tip

 

Various tips are supplied for different welding operations. Select and install the appropriate tip before 

beginning work. 

WARNING: The welder must be OFF and UNPLUGGED when installing tips.

1.  Insert the butt end of the tip into the Welding Gun. Be sure the welding tip is firmly seated in the gun.

2.  Rotate the collar of the gun clockwise to tighten the tip. 

 

Welding Tip Selection:

1. 

Electrode with magnet for washer

: Washer can be held in magnetic tip, to be spot welded to dented 

area. Washer will later be pulled to pull out dent. 

2. 

Washer electrode reversed for shrinking

: Magnetic washer electrode may be reversed in the gun and 

used for shrinking. A convex dented area can be heated, then cooled with a wet rag to shrink the 
metal and reduce the swelling.

3. 

Carbon Electrode

: May be used for cutting, filling cracks or heating for tempering or shrinking.

4. 

Spot Weld Needle tips:

 Used for spot welding.

Duty Cycle

 

This welder is rated for 15% duty cycle during welding at maximum power and 40% during warming 

at minimum power. Do not exceed duty cycle limits, as that may overheat the machine causing 
damage or premature wear. If the welder overheats, the Thermostat Light will come on, the welder 
will automatically shut off, and must remain off at least 30 minutes until cool. 

Содержание 94739 Assembly and

Страница 1: ...lusively by Harbor Freight Tools 3491 Mission Oaks Blvd Camarillo CA 93011 Visit our website at http www harborfreight com Read this material before using this product Failure to do so can result in s...

Страница 2: ...unded in accor dance with all codes and ordinances Never remove the grounding prong or modify the plug in any way Do not use any adapter plugs Check with a qualified electrician if you are in doubt wh...

Страница 3: ...ing plasma cutting soldering or similar applications produces chemicals known to the State of California to cause cancer and birth defects or other reproductive harm California Health Safety Code 2524...

Страница 4: ...cluded Only a qualified electrician should install the Power Cord Plug Never remove the grounding prong or modify the Power Cord Plug in any way Do not use adapter plugs with this product To comply wi...

Страница 5: ...se a fire resistant material to cover or block all open doorways windows cracks and other openings Enclose the work area with portable fire resistant screens Protect combustible walls ceilings floors...

Страница 6: ...material you will weld or cut 11 Do not touch live electrical parts Wear dry insulating gloves Do not touch electrode or conductor tong with bare hand Do not wear wet or damaged gloves 12 Protect you...

Страница 7: ...und ing system in the tool The green wire in the cord must be the only wire connected to the tool s grounding system and must never be attached to an electrically live terminal See Figure A 3 Your too...

Страница 8: ...rd For example a 10 gauge cord can carry a higher current than a 12 gauge cord See Figure B 4 When using more than one extension cord to make up the total length make sure each cord con tains at least...

Страница 9: ...Magnet Shrinking Electrode Puller Assembly 2 Pot Hooks 50 Washers 3 Carbon Electrodes 2 Spare Fuses If any parts are missing or broken please call Harbor Freight Tools at the number on the cover of th...

Страница 10: ...nd install the appropriate tip before beginning work WARNING The welder must be OFF and UNPLUGGED when installing tips 1 Insert the butt end of the tip into the Welding Gun Be sure the welding tip is...

Страница 11: ...k material In general larger thicker washers will require longer welding time 4 Insert a flat washer into the Magnetic Washer Tip 5 Using the gun press the washer against the dented area Squeeze the t...

Страница 12: ...location for a short time This electrical force causes the two items of metal to melt and fuse together at that spot If the electrical force is not large enough if the duration is too short or the met...

Страница 13: ...rigger and remove the electrode from the metal 6 Warming the metal will anneal it causing it to become softer Sudden cooling of annealed metal such as by applying water will temper the metal causing i...

Страница 14: ...e adequate training in the use of electric welders and related operations This tool can be easily damaged by unskilled use 2 Keep untrained or unauthorized persons away from the welder at all times 3...

Страница 15: ...doesn t operate Function selector is set on CONTINUOUS Move function selector to TIMED Excess splatter or sparkles when welding Traces of paint or rust have not been removed completely Stop work and c...

Страница 16: ...3353 Page 16 Welder Accessories Main Wire Connection Circuit Diagram REV 06l 08b Diagram D1 power D2 hot D3 work S1 1 OFF 250V 3A S1 2 Microswitch S2 Thermostat Control Board FUSE S3 Main Switch Main...

Страница 17: ...Bushing 4 Shift Switch 19 Cable Bushing 5 Front Panel 20 Timer Knob 6 Auxillary Transformer 21 Function Selector 7 Fuse Holder 22 Top Cover 8 Main Cable 23 Handle 9 Cable Bushing 24 Power Light 10 Fa...

Страница 18: ...SKU 94739 For technical questions please call 1 800 444 3353 Page 18 REV 06l 08b Assembly Photo...

Страница 19: ...DUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT IN FACT THE MANUFACTURER AND OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CER...

Страница 20: ...We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our product Some states do not allow the...

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