Replace torch water tube -28 – Hypertherm HT4400 HySpeed Plasma Arc Cutting System User Manual
Page 87
OPERATION
4-28
HT4400
Instruction Manual
Hypertherm
027347 Tool
358-04-rplcwtrtb
1
2
3
Replace Torch Water Tube
Below are some problems and causes that you may find with a defective or improperly installed water tube.
Problem
Cause
S
hort electrode life
Water tube not screwed in tightly
F
low switch interlock shutting
Coolant flow restricted because
d
own the system
water tube is loose
H
umming or rattling sound
Water tube bent or loose
coming from the torch
Turn OFF all power to the HT4400 system.
Remove consumables from torch.
Do not over-tighten parts! Only tighten until mating parts are seated.
WARNING
The HT4400 power supply 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.
7
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