Hypertherm HPR800XD Auto Gas Preventive Maintenance Program Rev.1 - Manual (Page 13)

HPR800XD Auto Gas Instruction Manual 808680 13
Preventive Maintenance Program
Weekly
Examine hoses and torch leads
1. Examine all air hoses, coolant hoses, and torch leads for:
 Scrapes, cuts, or holes
 Chemical spills or burns
 Kinks or bends
2. Replace any hoses or leads that have damage.
See Part numbers for HPR800XD Auto Gas cables and leads on page 26 for lengths and part numbers.
Do tests for gas leaks
For more information, see Gas leak tests in the Maintenance section of your system’s instruction manual.
Do the following gas system tests:
 Inlet Leak test
 System Leak test
 Proportional valve test – Make sure that you use the 130 A O
2
/Air consumables and that you select the 30 A O
2
/O
2
plasma process.
Do a check of the coolant flow
Find the flow rate shown on the CNC’s diagnostic screen. Record the coolant flow.
If the information on the CNC indicates a problem with the coolant flow, do the tests described in Coolant flow tests in
the Maintenance section of your system’s instruction manual.
If the flow rate is below 2.9 L/min (0.75 g/min), contact your maintenance department to service the coolant system.
Do a check of the coolant level
Make sure that the coolant tank in the chiller is full:
1. Remove the panel from the rear left side of the chiller.
2. Look at the coolant tank.
3. If the level is more that 5.1 cm (2 inches) from the top of the tank, add coolant (028872) to this level.
4. Record the number of gallons your system requires in Coolant requirements on page 31.