Manual 0-2569 83 APPENDIX
APPENDIX VI: RECOMMENDED ROUTINE MAINTENANCE
SCHEDULE FOR LIQUID COOLED PLASMA CUTTING
SYSTEMS
This schedule applies to all types of liquid cooled plasma cutting systems. Some systems will not have all the parts
listed and those checks need not be performed.
NOTE
The actual frequency of maintenance
may need to be adjusted according to
the operating environment.
Daily Operational Checks or Every Six Arc Hours:
1. Check torch parts, replace if damaged.
2. Check plasma and secondary supply and pressure/flow.
3. Purge plasma gas line to remove any moisture build-up.
4. Check deionizer bag/cartridge, replace if color is predominantly yellow.
5. Check coolant pressure (100 - 120 psi).
Weekly or Every 30 Arc Hours:
1. Blow or vacuum dust and dirt out of the entire machine.
Six Months or Every 720 Arc Hours:
1. Remove and clean in-line filter screens.
2. Check cables and hoses for leaks or cracks, replace if necessary.
3. Check all contactor points for severe arcing or pits, replace if necessary.
4. Check all pillow blocks and bearings, clean and lubricate if necessary.
5. Check fan, pump and pulley belts for wear or cracking, replace if necessary.
Twelve Months or Every 1500 Arc Hours:
1. Drain coolant, fill with distilled water, turn on main power switch and let machine run for approximately 30
minutes.
WARNING
DO NOT energize the Torch.
Drain distilled water and replace with Thermal Arc Coolant. Use Standard Mix Coolant (Catalog # 7-2850) or
Super Mix Coolant (Catalog # 7-2959) for environments below +10° F (-12° C).
2. Check radiator fins, clean and comb out if necessary.
3. Repeat six month maintenance.
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