Hypertherm HPR800XD Auto Gas Preventive Maintenance Program Rev.1 - Manual (Page 21)

HPR800XD Auto Gas Instruction Manual 808680 21
Preventive Maintenance Program
Cutting area and operation effects
The component replacement schedule is for reference only. Your cutting area conditions and operations can have an
effect on your component replacement schedule.
These topics give the most common conditions and operations that increase the wear on some components in your
plasma system. This wear decreases system performance and component life. If any of these conditions or operations
apply, change your replacement schedule as suggested.
How much you need to change your schedule depends on how bad the condition is. If you have questions about your
replacement schedule, contact your OEM or regional Hypertherm Technical Service team.
External cutting area
Consumables and torch assemblies stored in dirty cutting areas with no protection can collect contamination, such as dirt
and metal dust. If this contamination gets into the torch or coolant, it can cause the following problems:
 Prevent O-rings and seals on the torch heads and receptacles from sealing
 Increase wear on torch heads and receptacles
 Increase wear on the coolant pump
 Cause unsatisfactory operation of the coolant flow switch

It can help to flush the coolant system or clean the flow switch. But, it can be necessary
to replace the coolant switch to fully repair the operation of the coolant loop system.
The best solution is to store consumables and torch assemblies in a clean, protective space. Another solution is to use
compressed air to clean these parts before you use them.
If you cannot store your consumables and torch heads in a protective space, you can replace the following components
more frequently.
Description Part number
HPRXD quick-disconnect torch receptacle 220705
HPRXD quick-disconnect torch 220706
Coolant flow switch 229235