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Page 8

SKU 03664

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

Welding

Warning: Before arc welding, read and understand all safety precautions and warnings
listed on pages 2 through 5.

1.

Connect and secure the Argon/CO

2

 gas hose to the rear of the MIG Welder.

2.

Securely clamp the Ground Cable Clamp as close as possible to the metal object to
be welded, or to the metal work bench where the object is mounted and electrically
connected.

3.

Set the Welding Current Adjustment Knob ( 30~200 Amps) to the desired current
setting for the type of metal being welded.Thinner metals use lower current. Heavier
metals use higher current.

4.

Verify that the Power Switch is in the OFF (0) position, then plug the MIG  Welder plug

into a dedicated, 220 VAC, 20 amp line with delayed action type circuit breaker or
fuses. If an extension cord is used, it must have the following wire size: up to 30 feet,
use 10 AWG size wire; 30 to 50 feet, use 8 AWG wire; Over 50 feet, use 6 AWG wire.

5.

While holding the Torch Handle with electrode wire clearly out of the way of any
grounded objects, turn the Power Switch to the ON (I) position.

6.

Momentarily press the Torch Trigger Switch to test the wire feed speed.

Adjust the speed by turning the Wire Feed Speed Control knob.

7.

Orient yourself on the area to be welded, then place the Arc Shaded Face Shield over
your eyes.

Warning: Never look at the ignited arc without ANSI approved, arc shaded, eye protec-
tion in a full face shield. Permanent eye damage or blindness can occur. Skin burns can
occur. Never breath arc fumes.

8.

Press (and hold) the Torch Trigger Switch and stroke the area to be welded with the
electrode wire to ignite the arc.

Never tap the electrode wire into the welding surface to ignite the arc. This damages
its external coating on the electrode which prevents oxygen in the air from coming into
contact with the molten metal, causing it to oxidize.

9.

Once the arc is ignited, tilt the electrode wire forward at an angle of about 35°. Refer
to the illustration below.

The wire feeds automatically at a speed dependent on the Min. or Max. current
setting. The wire speed can also be adjusted using the Wire Feed Speed Control.

Summary of Contents for 3664

Page 1: ...rillo CA 93011 Visit our Web site at http www harborfreight com Copyright 2003 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced i...

Page 2: ...rating and maintenance procedures parts list and diagram Keep your invoice with this manual Write the invoice number on the inside of the front cover Keep the manual and invoice in a safe and dry plac...

Page 3: ...hould be carefully checked to determine that it will operate properly and perform its intended function Check for alignment and binding of moving parts any broken parts or mounting fixtures and any ot...

Page 4: ...failure of the pacemaker 22 Use tools with both hands when required Many tools such as chain saws drills routers and welders etc require the use of both hands when operating This helps maintain tool s...

Page 5: ...Wear ANSI approved arc shaded impact safety full face shield and body protection Do not allow viewing by visitors without proper eye and body protection 4 Know proper arc welding practices Read and un...

Page 6: ...Axis Mechanism See photo on next page 7 Guide the welding wire into the Wire Routing Housing until it passes the Feed Control Wheel and into the Torch Cable 8 Connect a 220 VAC plug not supplied to th...

Page 7: ...wire feed If the wire is not feeding properly It may also be necessary to increase the tension of the Wire Tension Control knob by turning it clockwise 12 Release the Trigger Switch and flip the Power...

Page 8: ...ing the Torch Handle with electrode wire clearly out of the way of any grounded objects turn the Power Switch to the ON I position 6 Momentarily press the Torch Trigger Switch to test the wire feed sp...

Page 9: ...P n o i t p i r c s e D t r a P n o i t p i r c s e D t r a P n o i t p i r c s e D 1 e s a C 7 1 l o o p S e r i W 2 3 l e n a P 2 r e v o C g n i d l o F 8 1 e k a r B 3 3 l o r t n o C n o i s n e...

Page 10: ...ram NOTE Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts This diagram and the parts list that preceded it show the major componen...

Page 11: ...SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OFTHE PRODUCT IN FACT THE MANUFACTURER AND OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND...

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