Hypertherm HT200LHF-200 Volt HySpeed - Manual (Page 107)

MAINTENANCE
5-18 HySpeed HT2000LHF
Instruction Manual
6
3. Drain the power supply reservoir by opening the petcock on the bottom of the reservoir tank. Close petcock
after coolant is drained. See Fig. 5-8. On older systems, there is either no petcock, or the petcock is in a
different position than the one shown in the figure above. Siphon coolant out of the tank through the fill inlet if
there is no petcock.
4. Ensure that the torch and consumables are installed and connected to the power supply.
5. Disconnect the torch coolant supply hose (black hose with the green band) from the rear of the power supply .
See Fig. 5-6.
6. Blow clean, dry, oil-free air at 80-120 psi (5.5 - 8.3 bar) into the torch coolant supply hose until coolant stops
flowing into the reservoir.
7. Drain or siphon remaining coolant from the reservoir as in step 3.
8. Unscrew the coolant filter housing from the rear of the power supply. See Fig. 6-8 for location of filter housing.
9. Empty coolant from the filter housing.
10. Screw the coolant filter housing back into the rear of the power supply.
Drain petcock
Figure 5-8 Coolant Tank Reservoir Drain Petcock Location
Fill inlet
Fill inlet cap