Thermal Dynamics Pak Master 75XL Plus, Руководство по обслуживанию

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REPLACEMENT PROCEDURES 5-8 Manual 0-2747
5. Remove the four screws securing the Air Line Regu-
lator Bracket to the Rear Panel.
6. Pull the bracket from the unit.
7. Install the replacement Air Line Regulator Bracket
by reversing the above procedure.
G. Air Line Regulator Replacement
1. Remove power from power supply.
2. Shut off air supply and bleed down system.
3. Disconnect the gas input hose from the input of the
Air Line Regulator Assembly.
4. Remove the Right Side Panel per Section 5.04-C.
5. Disconnect the gas tube connected to the bottom of
the T-fitting at the Solenoid Valve Assembly.
6. Remove the Air Line Regulator Bracket per para-
graph 'C' above.
7. Pull the Air Line Regulator away from the Rear
Panel far enough to disconnect the plumbing joint
between the reducer and elbow fitting..
8. Remove the elbow fitting from the old assembly.
9. 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.
NOTE
Do Not use Teflon tape as a thread sealer as small
particles of the tape may break off and block the
small gas passages in the torch.
5.09 Right Side Internal
Component Parts
Replacement
Refer to Section 6.08 for parts list and overall detail draw-
ing, and replacement parts catalog numbers.
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 reassembling 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
Follow the Anti-Static Handling Procedures in Section 5.02.
1. Remove the Right Side Panel per Section 5.04-C.
NOTES
Before removing any connection mark each wire with
the connection designation. When reassembling 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
1. Remove the Right Side Panel per Section 5.04-C.
NOTES
Before removing any connection mark each wire with
the connection designation. When reassembling 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 Relay
Assembly.
3. Remove the two nuts securing the Relay Assembly
and Dust Cover to the Pilot Panel.
4. Install the Dust Cover and replacement Relay As-
sembly by reversing the above procedure.