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MAINTENANCE

SAFETY PRECAUTIONS

ELECTRIC SHOCK can kill.

• Disconnect input power by removing

plug from receptacle before working
inside machine. Use only grounded
receptacle. Do not touch electrically
“hot” parts inside machine

• Have qualified personnel do the mainte-

nance and trouble shooting work.

ITEMS REQUIRING
NO MAINTENANCE

•  Drive Motor and Gearbox – Lifetime lubrication

•  Wire Reel Spindle – Do NOT lubricate shaft

ROUTINE AND PERIODIC
MAINTENANCE

BEFORE EACH USE

•  Check over machine and accessories for any obvious condi-

tion that may prevent safe performance or operation.  Repair
or replace items as necessary to correct any abnormal con-
dition.

AFTER 5 MINUTES OF WELDING

or when spatter accumulates in the gas nozzle:

•  Clean the contact tip and gas nozzle to avoid bridging

between the nozzle and contact tip.  Bridging results in a
shorted nozzle, poor welds and overheated gun. Hint: Anti-
stick spray or gel available from a welding supplier may
reduce buildup and aid in spatter removal.

D-1

MAINTENANCE

D-1

MIG PAK HD

WARNING

Summary of Contents for MIG PAK HD

Page 1: ...HIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT And most importantly think before you act and be careful For use with machine Code Number 11062 Sales and Serv...

Page 2: ...WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING Read and understand the following safety highlights For additional safety information it is strongly recommended that you purchase a copy of...

Page 3: ...cal earth ground 3 f Maintain the electrode holder work clamp welding cable and welding machine in good safe operating condition Replace damaged insulation 3 g Never dip the electrode in water for coo...

Page 4: ...vent the welding sparks from starting a fire Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas Avoid welding near hydraulic...

Page 5: ...appropri s et non inflamma bles 4 Des gouttes de laitier en fusion sont mises de l arc de soudage Se prot ger avec des v tements de protection libres de l huile tels que les gants en cuir chemise pais...

Page 6: ...must be followed to avoid minor personal injury or damage to this equipment CAUTION Please Examine Carton and Equipment For Damage Immediately When this equipment is shipped title passes to the purcha...

Page 7: ...rotection B 5 Learning to Weld B 6 thru B 16 ________________________________________________________________________ Accessories Section C Accessories C 1 Replacement Parts C 1 ______________________...

Page 8: ...ED OUTPUT OUTPUT RANGE RECOMMENDED INPUT CABLE AND FUSE SIZES Height Width Depth Weight 12 8 in 8 8 in 18 in 46 Ibs 325 mm 224 mm 457 mm 20 9 kg PHYSICAL DIMENSIONS Standard Voltage Frequency Input Cu...

Page 9: ...ave read and under stood the Machine Operating Manual should install and operate this equipment Machine must be plugged into a receptacle which is grounded per any national local or other applicable e...

Page 10: ...a secure level surface or rec ommended undercarriage The machine may topple over if this procedure is not followed To minimize over heating locate the welder in a dry location where there is free cir...

Page 11: ...s adapter is avail able from your local gas supplier WARNING CYLINDER VALVE GAS CYLINDER REGULATOR HOSE CODE REQUIREMENTS FOR ELECTRI CAL INPUT CONNECTIONS This welding machine must be connected to a...

Page 12: ...gas MIG welding and the Innershield electrode process self shielded flux cored welding The machine will handle reels of wire up to 2 lbs 1 kg RECOMMENDED PROCESSES The machine can be used for welding...

Page 13: ...the spool assembly onto the spindle WELDING CAPABILITY The machine is rated at 70 amps 17 volts at 20 duty cycle on a ten minute basis It is capable of high er output currents at lower duty cycles LI...

Page 14: ...the gun the drive roll the gun connector block and the gun contact tip are always energized rela tive to work and ground FIGURE B 4 WIRE STICKOUT 10 Remove the gas nozzle and contact tip from the gun...

Page 15: ...work clamp to the metal to be welded The work clamp must make good electrical contact to the work piece The work piece must also be grounded as stated in Arc Welding Safety Precautions in the beginni...

Page 16: ...to feed 0 035 0 9 mm diameter wire To operate the machine with other sizes of wire it is necessary to change the contact tip and change the drive roll to other sizes Refer to Changing the Contact Tip...

Page 17: ...or similar devices that can be damaged See Figure B 6 Always disconnect electrical devices before welding upon them FIGURE B 6 Fumes and slag generated from Innershield type electrodes recom mended f...

Page 18: ...impurities and forms the protective slag on top of the weld during cooling After running a weld bead the slag may be removed with a chipping hammer and wire brush This improves appearance and allows f...

Page 19: ...d are more difficult to weld Basically if a magnet sticks to the metal and you can easily cut the metal with a file chances are good that the metal is mild steel and that you will be able to weld the...

Page 20: ...up is used whenever a larger stronger weld is desired Vertical down is used primarily on sheet metal Use of this unit on thicker materials than recom mended may result in welds of poor quality The wel...

Page 21: ...ide for the welding wire and base metal thickness being used The voltage control is marked V and the wire feed speed is marked olo 3 Check that the polarity is correct for the welding wire being used...

Page 22: ...ectrical stickout ESO is the distance from the end of the contact tip to the end of the wire See Figure B 17 Once the arc has been established maintaining the correct ESO becomes extremely important T...

Page 23: ...face shield to protect face and eyes 3 Depress gun trigger hold gun so contact tip to work distance is about 3 8 to 1 2 inch 10 to 12 mm and the gun is at proper angle 4 After you strike the arc pract...

Page 24: ...the four welding will be easy They are as follows 1 The Correct Welding Position Figure B 21 illustrates the correct welding position for right handed people For left handed people it is the opposite...

Page 25: ...ul Hints 1 For general welding it is not necessary to weave the arc neither forward or backward nor sideways Weld along at a steady pace You will find it easier 2 When welding on thin plate you will f...

Page 26: ...ty NOTE Try different work connection locations before adjusting procedures 1 Check or reset WFS Volts on chart inside door 2 Decrease drag angle 3 Increase stickout 4 Decrease travel speed Arc blow i...

Page 27: ...the gun around sharp corners 2 Keep the gun cable as straight as practical when welding 3 Do not allow dolly wheels or trucks to run over the cables 4 Keep the cable clean 5 Innershield electrode has...

Page 28: ...the life of the welder and may need to be ordered See the complete parts list at the end of this manual for machine replacement parts ITEM DESCRIPTION PART NO 1 Chipping Hammer Brush S24355 12 2 Face...

Page 29: ...ROUTINE AND PERIODIC MAINTENANCE BEFORE EACH USE Check over machine and accessories for any obvious condi tion that may prevent safe performance or operation Repair or replace items as necessary to c...

Page 30: ...tact Tip in this section Check the condition of the wire feed rollers Remove any metallic dust deposited in the feed area rollers and entrance and outlet wire guide Check the gas hose and fittings for...

Page 31: ...X9 Use care in removal as not to damage the P C board or adjoining connections 6 Unfasten the 2 retaining bolts and 1 screw securing the gun strain relief note the alignment of the gun in the wire dr...

Page 32: ...CAUSE lists the obvious external possibilities that may contribute to the machine symptom Step 3 RECOMMENDED COURSE OF ACTION This column provides a course of action for the Possible Cause generally...

Page 33: ...T S None Contact your local Authorized Field Service Facility 1 Make sure correct voltage is applied to the machine 115vac 2 Make certain that power switch is in the ON position 3 The thermostat may b...

Page 34: ...MISADJUSTMENT S 1 The thermostat may be tripped due to overheating Let machine cool Weld within the duty cycle or remove any air obstruction to the machine 2 Gun trigger may be faulty 3 Drive Roll ten...

Page 35: ...nsistent Increase and main tain a constant travel speed 2 Output heat range is too high Set the Low High Heat Range switch to Low or the Fine Heat Adjustment to MIN 1 Travel speed is inconsistent Decr...

Page 36: ...6 1 2 2 3 T1 S2 5 4 4 V g g L M2 red black X1 X2 X3 X5 X4 X8 X11 X10 X9 X2 X1 X2 X1 NO GAS GAS X2 X1 X7 X6 NOTE This diagram is for reference only It may not be accurate for all machines covered by t...

Page 37: ...electrically live parts or electrode with skin or wet clothing Insulate yourself from work and ground No toque las partes o los electrodos bajo carga con la piel o ropa moja da Aislese del trabajo y...

Page 38: ...te Be und Entl ftung des Arbeitsplatzes Mantenha seu rosto da fuma a Use ventila o e exhaust o para remover fumo da zona respirat ria Turn power off before servicing Desconectar el cable de ali mentac...

Page 39: ...and Service through Subsidiaries and Distributors Worldwide Cleveland Ohio 44117 1199 U S A TEL 216 481 8100 FAX 216 486 1751 WEB SITE www lincolnelectric com World s Leader in Welding and Cutting Pr...

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