Hypertherm HD4070 Rev.1 - Manual (Page 167)

5-4 HyPerformance HD4070 Instruction Manual
MAINTENANCE
Power supply coolant system servicing
4070.40A
Check that the drain valve is closed.
1
Add coolant to the power supply until
the sight gauge indicates full.
2
Replace the filler cap.
3
Caution: Use Hypertherm coolant (P/N 028872) only or catastrophic damage
to pump will occur. For requirements see pg. 3-3,
Installation
section.