Hypertherm HPR260 Manual Gas Preventive Maintenance Program Rev.5 - Manual (Page 137)

OPERATION
HPR260 Auto Gas Instruction Manual 4-43
Damage Replace swirl ring
Dirt or debris Clean and check for damage; replace if damaged
Gas holes Blocked holes Replace swirl ring
O-rings 1. Damage Replace swirl ring
2. Lubricant Apply a thin film of silicone lubricant if dry
Inspect consumables
Part Check for Action
Cap
Nozzle
Swirl ring
Electrode
Center surface Wear
O-rings 1. Damage Replace electrode*
2. Lubricant Apply a thin film of silicone lubricant if dry
*Always replace the nozzle and electrode as a set.
Center hole 1. Must be round Replace nozzle if hole is no longer round*
2. Signs of arcing Replace nozzle*
O-rings 1. Damage Replace nozzle*
2. Lubricant Apply a thin film of silicone lubricant if dry
Erosion or missing material Replace nozzle*
Blocked gas holes Replace nozzle*
Erosion, missing material Replace cap
Cracks Replace cap
Burned Replace cap
See Inspect electrode pit depth later in
this section