Hypertherm HD4070 Rev.1 - Manual (Page 159)

OPERATION
4-34 HyPerformance HD4070 Instruction Manual
Replace torch water tube
Turn OFF all power to the system.
Remove consumables from torch. See Remove consumables in this section.
WARNING
The system is designed to go into an idle mode if the retaining cap is removed. However, DO NOT
REMOVE CONSUMABLE PARTS WHILE IN THE IDLE MODE! Always disconnect power to the power
supply before removing torch consumable parts.
Remove water tube Install new water tube Replace consumables.
See
Install consumables
in this section.
Note: The water tube may seem loose when correctly inserted, but any side-to-side looseness
will disappear after the electrode is installed.