Hypertherm Powermax30 XP Service Manual - Manual (Page 144)

144 Powermax30 XP Service Manual 808150 Revision 1
6 – Power Supply Component Replacement
Install the air filter/regulator and pressure switch assembly
 This kit contains two fittings that are not used in the Powermax30 XP: a brass coupler
(015550) and a brass pipe (015618).
1. Locate the new brass hex adapter fitting (015846) in the kit. Apply a small drop of thread sealant to the middle
threads of the fitting. Do not apply thread sealant to the threads at the end of the fitting that will be inserted into the
air filter/regulator assembly. See
Figure 77 on page 145.
 If applied too heavily, excess amounts of thread sealant can contaminate the gas line.
2. Screw the hex adapter fitting into the side of the air filter/regulator, and use a 5/8 inch wrench to tighten.
3. Position the new air filter/regulator assembly in the bracket on the center panel of the power supply. Hand-tighten the
retainer nut plus a quarter turn.
 Do not overtighten the retainer nut.
4. Route the drain hose through the hole in the base of the power supply.
5. Connect the red and black wires to the pins on the pressure switch (see Figure 77):
a. Press the black wire’s connector onto the pressure switch pin that is nearest the center panel.
b. Press the red wire’s connector onto the pressure switch pin that is farthest from the center panel.
6. Push-to-connect the gas supply hose to the fitting on the new air filter/regulator. Be careful not to kink the hose as
you reconnect it.
7. Using the clip you removed in step 6 on page 141, connect the ground wire to the air filter/regulator’s brass
“T” fitting.
8. Reconnect the air fitting (CSA models) or air fitting adapter (CE/CCC models) to the brass hex adapter in the air
filter/regulator assembly.
CAUTION!
The regulator is pre-set at the factory. Do not adjust this setting.
CAUTION!
Never use PTFE tape on any joint preparation. Use only a liquid or paste thread sealant on male
threads.