Hypertherm HD3070 Plasma Arc Cutting System w/ Automatic Gas Console - Manual (Page 128)

HD3070 with Automatic Gas Console Instruction Manual 5-3
16
MAINTENANCE
Routine Maintenance
The HD3070 system is designed to require minimal regular maintenance under normal use. The following checks
are suggested to keep your system in top running condition:
Power Supply
• Check the exterior for any damage. If there is damage, ensure it does not affect safe operation of the power
supply.
• Remove power supply covers and inspect the interior.
– Check wiring harnesses and connections for wear and damage. Check for loose connections and areas
of discoloration due to overheating.
– Check for dust and foreign matter inside the unit. Blow out the unit with compressed air. In an excessively
dirty environment, do this weekly.
– Blow out the fans and heat exchanger at rear of power supply. In an excessively dirty environment, do
this weekly.
• At the rear of the power supply, inspect all interconnecting cables, hoses and leads for wear and damage.
Check that connections are tight but do not overtighten.
• At the rear of the power supply, inspect the water filter element. A dirty filter element will be a brownish
color. Replace the filter element when it gets dirty.
• Every 6 months, flush the power supply torch coolant and replace with new coolant. See Section 3, Torch
Coolant Requirements and Filling Torch Coolant System for details.
RHF Console
• Check the exterior for any damage. If there is damage, ensure it does not affect safe operation of the
console.
• Open the cover and inspect the interior. Check all cables and hoses for wear and damage. Check for loose
connections, areas discoloration due to overheating and plumbing leaks.
• Inspect the 2 spark gaps between the electrodes. If required, clean with emery cloth, align, and regap to
0.020 ± 0.001 inch (0.51 ± 0.03 mm). Check that the electrode surfaces between the gaps are flat. If the
surfaces are rounded, replace and regap.
• Check for dust and foreign matter inside the unit. Blow out the unit with compressed air. In an excessively
dirty environment, do this weekly.