Manual 0-2582 35 REPLACEMENT PROCEDURES
3. Disconnect the gas tube connected to the bottom of
the T-fitting at the Solenoid Valve Assembly.
4. Remove the Air Line Regulator Bracket per para-
graph 'D' above.
5. Pull the Air Line Regulator away from the Rear
Panel far enough to disconnect the plumbing joint
between the reducer and elbow fitting..
6. Remove the elbow fitting from the old assembly.
7. Install the replacement Air Line Regulator Assem-
bly by reversing the above procedure and noting
the following:
• Apply pipe thread sealant to the fitting before
reassembling.
5.09 Right Side Internal Component
Parts Replacement
NOTE
Refer to Section 6.08 for parts list and overall de-
tail drawing.
A. Pilot/Output PC Board Assembly
Replacement
1. Remove the Right Side Panel per Section 5.04-C.
NOTES
Before removing any connection mark each wire
with the connection designation. When reassem-
bling this makes sure the wires go to the proper
terminals.
Note the routing of wires and make sure the wires
are put back in the same place when reassembling
the unit.
2. Disconnect all the wiring connections to the Pilot/
Output PC Board Assembly.
3. Remove the four screws and washers securing the
PC Board to the standoffs.
4. Install the replacement Pilot/Output PC Board As-
sembly by reversing the above procedure.
B. CD PC Board Assembly Replacement
1. Remove the Right Side Panel per Section 5.04-C.
NOTES
Before removing any connection mark each wire
with the connection designation. When reassem-
bling this makes sure the wires go to the proper
terminals.
Note the routing of wires and make sure the wires
are put back in the same place when reassembling
the unit.
2. Disconnect all the wiring connections to the CD
PC Board Assembly.
3. Remove the four screws and washers securing the
PC Board to the standoffs.
4. Install the replacement CD PC Board Assembly by
reversing the above procedure.
C. PCR Relay Replacement
Depending on when the Power Supply was manufactured
the PCR Relay can be one of two styles (see NOTE). Use
one of the following procedures for the style of PCR Re-
lay in the Power Supply.
NOTE
Refer to Section 6.08 for the illustration of the two
PCR Relay styles.
• Old Style Relay Replacement
For a Power Supply that has the old style relay,
replace per the Installation Instructions supplied
with the PCR Relay Field Retrofit Kit.
• New Style Relay Replacement
For a Power Supply that has the new style relay,
replace per the Installation Instructions supplied
with the PCR Relay Replacement Kit.
D. Main Transformer Assembly Replacement
1. Remove the Left Side Panel per Section 5.04-B.
2. Remove the Right Side Panel per Section 5.04-C.
3. Remove the following terminal connections from
the two FET/Heatsink Assemblies noting the lo-
cation of each wire:
Connection Description
E14 MAIN XFMR PRI
E15 XFMR PRI
E16 MAIN XFMR SEC
E19 XFMR SEC
4. Remove the four screws which hold the mounting
plate to the bottom chassis.
5. Carefully remove the mounting plate with the Main
Transformer Assembly from the unit.
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