Miller Electric APT-1000 manual Troubleshooting, Cutting Trouble

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Figure 5-2. Checking Detector Pins And Checking/Replacing Shield Cup, Tip, And Electrode

5-3. Troubleshooting

WARNING

ELECTRIC SHOCK can kill.

HOT PARTS can cause severe burns.

Do not touch live electrical parts.

Allow cooling period before maintaining or servicing.

Turn Off power source, and disconnect input power

before inspecting, maintaining, or servicing.

Troubleshooting to be performed only by qualified persons.

swarn8.1* 2/93

Table 5-1. Cutting Trouble

Trouble

Remedy

Section

Sparks come out top of cut, or cut is not clean.

Arc goes out while cutting.

Arc goes on and off while cutting.

Torch travel speed too fast; reduce travel speed.

Check torch tip and electrode, and replace if necessary.

Metal being cut is too thick; increase power source Thickness control setting.

Make sure torch tip is touching metal while cutting.

Be sure work clamp is securely attached.

Torch travel speed is too slow; increase travel speed. Check torch tip and electrode, and replace if necessary.

Figure 4-2

5-2

*

Figure 4-2

*

Figure 4-2

5-2

*See power source Owner’s Manual.

OM-1572 Page 8

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Contents Description OM-1572AProcesses From Miller to You Plasma ARC Cutting Safety Precautions Flying Sparks and HOT Metal can cause injury Fumes and Gases can be hazardous to your healthPlasma ARC can cause injury Cylinders can explode if damagedTable of Contents EMF InformationPage Electric Shock can kill Safety InformationCutting Torch Moving Parts can injureConsumables And Parts Supplied With Torch InstallationDuty Cycle Installing Torch Operating the Torch Without TIP or Electrode can damage Remove spatter can damage torchOr Operation TorchMonths Maintenance & TroubleshootingRoutine Maintenance Each UseOvertightening will strip threads Reco Mmended VAL UES or Operat IO NTroubleshooting Cutting TroubleParts List 126Page Page Page Service SupportOwner’s Record Miller Electric Mfg. Co