Manual 0-2728
5-17
REPLACEMENT PROCEDURES
7. To install replacement rear panel, reverse the
above procedure.
C. Pressure Switch (PS1) Replacement
1. Remove the Right Side Panel per Section 5.04-A.
2. Disconnect the two wires connected to the Pres-
sure Switch Assembly (see Figure below).
3. Remove the Pressure Switch Assembly from the
T-fitting.
4. Install the replacement Pressure Switch Assem-
bly by reversing the above procedure, keeping in
mind the following:
• Apply pipe thread sealant to the fitting before
reassembling.
D. Solenoid Valve (SOL1 & SOL2)
Replacement
NOTE
There are two Solenoid Valve Assemblies in this
unit: one for plasma gas and one for secondary gas
(as labeled on rear panel). The Solenoid Assembly
for secondary gas has a Pressure Switch which must
be removed prior to removing the Solenoid. Fol-
lowing the instructions as they pertain to the Sole-
noid Valve being replaced.
1. Remove the Right Side Panel per Section 5.04-A.
2. Locate the Solenoid Assembly to be replaced.
Pressure
Switch
Gas Tubing
Blue
Wires
Solenoid
A-02298
Plasma Gas
Gas
Tubing
Secondary Gas
Blue
Wires
"L" Fitting
Brass
Nipple
Brass
Nipple
3. Note the location of all wires, then complete the
following:
a. Disconnect the gas tubing at the solenoid
fitting(s).
b. Disconnect blue wires.
4. Remove the Pressure Switch, if applicable.
5. Note the orientation of the Solenoid Valve Assem-
bly then remove the Solenoid(s) from the two inch
brass regulator fitting(s).
6. Install the replacement Solenoid Valve Assembly
by reversing the above procedure.
E. Air Line Regulator Bracket(s) Replacement
NOTE
There are two Air Line Regulator Brackets in this
unit and both are replaced using this same proce-
dure.
1. Remove the nut securing the Air Line Regulator
to the mounting bracket.
2. Remove the four screws securing the Air Line
Regulator Bracket to the Rear Panel.
3. Remove bracket from unit.
4. Install the replacement Air Line Regulator Bracket
by reversing the above procedure.
F. Air Line Regulator(s) Replacement
NOTE
This unit has two Air Line Regulators - one for
plasma gas and one for secondary gas. This proce-
dure applies to both Regulators.
1. Remove the Right Side Panel per Section 5.04-A.
2. Disconnect the gas input hose from the inert B
fitting input located on the right side of the Air
Line Regulator Assembly.
A-02327
Gas Pressure
Regulator
Filter
Assemblies
Gas Input
Input Hoses
Содержание PAK Master 150XL
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