Hypertherm XPR300 - Page 127

Installation
3
XPR300 Instruction Manual 809480 127

Good alignment minimizes twisted leads. Twisted leads can cause gas or
coolant restrictions that shorten the life of consumables or result in bad
cut quality.
5. Connect the torch leads and connectors in the following order:
a. Use 2 wrenches to install
the coolant return hose
(red) onto the coolant
return fitting (red) and
tighten to 16.3 Nm –
19.0 Nm (144 inlbf –
168 inlbf).
b. Insert the plasma valve
connector. Use your fingers
to tighten the connection. Do
not use tools.
c. Connect the pilot arc lead
(yellow). Use your fingers to
tighten the connection. Do
not use tools.
d. Connect the ohmic lead
(orange). Use your fingers to
tighten the connection. Do
not use tools.
e. Connect the coolant supply
hose (green). Push the hose
into the connector until it
stops, approximately 13 mm
(0.5 inch).

This is a push-to-connect
fitting.
Coolant return hose (red)
Plasma valve connector
Pilot arc lead (yellow)
Ohmic lead (orange)
Coolant supply hose (green)