Miller Electric APT-1000 - Manual (Page 14)

OM-1572 Page 8
Figure 5-2. Checking Detector Pins And Checking/Replacing Shield Cup, Tip, And Electrode
5-3. Troubleshooting
ELECTRIC SHOCK can kill.
•
Do not touch live electrical parts.
•
Turn Off power source, and disconnect input power
before inspecting, maintaining, or servicing.
HOT PARTS can cause severe burns.
•
Allow cooling period before maintaining or servicing.
Troubleshooting to be performed only by qualified
persons.
WARNING
swarn8.1* 2/93
Table 5-1. Cutting Trouble
Trouble Remedy Section
Sparks come out top of cut, or cut is not
clean. Torch travel speed too fast; reduce travel speed. Figure 4-2
Check torch tip and electrode, and replace if necessary. 5-2
Metal being cut is too thick; increase power source Thickness
control setting. *
Arc goes out while cutting. Make sure torch tip is touching metal while cutting. Figure 4-2
Be sure work clamp is securely attached. *
Arc goes on and off while cutting. Torch travel speed is too slow; increase travel speed. Figure 4-2
Check torch tip and electrode, and replace if necessary. 5-2
*See power source Owner’s Manual.