Wire Feed Arc Welder
General Safety
(Continued)
Ontario, Canada M9W 1R3
Cutting And Welding Processes
NFPA Standard 51B, from National Fire Protection Association, Batterymarch Park, Quincy, MA 02269
Safe Practices For Occupational And Educational Eye And Face Protection
ANSI Standard Z87.1, from American National Standards Institute, 1430 Broadway, New York, NY 10018
Refer to Material Safety Data Sheets and manufacturers instructions for metals, wire, coatings and cleaners.
Installation
LOCATION
Selecting the proper location can significantly increase performance,
Swing arm
Wire guide
Drive deck
| Welding wire | Drive roller |
| Retainer | Tension knob |
| Spring | |
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Spindle | Lock |
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Figure 2 - Weld Wire Installation |
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reliability and life of the arc welder.
lFor best results locate welder in a clean and dry environment. Dust and dirt in the welder retain moisture and increase wear of moving parts.
lPlace welder in an area with at least twelve inches (305 mm) of ventilation space at both the front and rear of unit. Keep all obstructions out of this ventilation space.
lStore welding wire in a clean, dry location with low humidity to prevent oxidation.
lUse a properly grounded receptacle for the welder and ensure welder is the only load on power supply circuit. Refer to chart on page 1 for correct circuit capacity.
lUse of an extension cord is not recommended for electric arc welding machines. Voltage drop in the extension cord may significantly degrade performance of the welder.
Assembly
WIRE INSTALLATION
NOTE: Before installing welding wire, be sure:
a. Diameter of welding wire matches groove in drive roller on wire feed mechanism (See Figure 2).
b. Wire matches contact tip in end of torch (See Figure 3).
A mismatch on any item could cause the
Torch Diffuser
Contact Tip
| Nozzle |
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| Figure 3 - Torch Nozzle |
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| Contact Tip Markings | |
| Mark | Wire Size |
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| 0.6 mm | .024 in. |
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| 0.8 mm | .030 in. |
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| 0.9 mm | .035 in. |
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wire to slip and/or bind.
NOTE: Always maintain control of loose end of welding wire to prevent unspooling.
1.Verify unit is off and open door panel to expose wire feed mechanism.
2.Remove the spool lock by pushing in and rotating 1/4 turn counterclockwise. Then remove lock, spring and retainer.
3.Flip tensioning knob down and swing arm up on drive mechanism. This allows initial feeding of wire into torch liner by hand.
4.Install wire spool onto spindle so wire can come off bottom of spool.
Do not cut the wire loose yet. Install retainer, spring and lock by pushing in and turning lock 1/4
rotation clockwise.
5.Hold wire and cut the wire end from spool. Do not allow wire to unravel. Be sure end of wire is straight and free of burrs.
6.Feed wire through wire guide, over the groove in drive roller and into torch wire liner. Flip swing arm down and tension knob up. Adjust tension by rotating tension knob.
7.Unscrew nozzle and contact tip from end of welding torch (See Figure 3). Plug welder into a proper power supply receptacle.
8.Turn on welder and set wire speed to 10. Activate torch trigger until wire feeds out past the torch end. Turn welder off.
9.Carefully slip contact tip over wire, screw tip into torch end and reinstall nozzle (See Figure 3). Cut wire off approximately 1/4 inch from nozzle end.
DUTY CYCLE / THERMOSTATIC PROTECTION
Welder duty cycle is the percentage of actual weld time that can occur in a ten minute interval. For example, at a 20% duty cycle, actual welding can occur for two minutes, then the welder must cool for eight minutes.
Internal components of this welder are protected from overheating with an automatic thermal switch. A red lamp is illuminated on the front panel if the
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