13
6 MAINTENANCE
This section describes basic maintenance procedures performable by operating personnel. No other
adjustments or repairs are to be attempted by other than properly trained personnel.
WARNING
Disconnect primary power at the source before disassembling the power supply, torch, or torch
leads. Frequently review the Important Safety Precautions at the front of this manual. Be sure the
operator is equipped with proper gloves, clothing, eye and ear protection. Make sure no part of the
operator’s body comes into contact with the workpiece while the torch is activated.
DAILY INSPECTION AND REPLACEMENT CONSUMABLE TORCH PARTS
Inspect and, if necessary, change the torch consumable parts. Electrode and nozzle must be changed at
regular intervals, as a general guideline after 4 hours continues use, after 250 starts or about 120m cut at
500mm/min 85A
.
Replace the nozzle if the opening is deformed or clearly oversized. Failure to replace worn
nozzle or electrode in time will dramatically reduce the cutting capacity and eventually ruin the torch.
Carefully inspect the hose assembly and torch body with regard to any leak or damage.
NOTE
The shield cup holds the tip and the starter cartridge shield cup in place. Position the torch with the shield
cup facing out when the cup is removed.
NOTE
Slag build-up on the shield cup that cannot be removed may affect the performance of the system.
1. Unscrew and remove the shield cup from the torch
2. Inspect the cup for damage. Wipe it clean or replace if damaged
3. Removed the tip. Check for excessive wear (indicated by an elongated or oversize orifice, see images).
Clean or replace the tip if necessary.
4. Remove the starter cartridge. Check for excessive wear plugged gas holes, or discolouration. Check the
lower end fittings for free motion. Replace if necessary.
5. Pull the electrode straight out of the torch head. Check the face of the electrode for excessive wear. Refer
to the following figure.
6. Re-install the electrode by pushing it straight into the torch head until it clicks.
7. Re-install the desired starter cartridge and tip into the torch head
8. Hand tighten the shield cup until it is seated on the torch head. If resistance is felt when installing the cup,
check the threads before proceeding.
Summary of Contents for UPC 85 ML
Page 1: ...01 Instruction manual UPC 85 ML Air Plasma Cutter...
Page 21: ...21 9 WIRING DIAGRAM...
Page 22: ...22 10 PARTS LIST...
