Thermadyne CE CutMaster 75, Service Manual

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Manual 0-2869 5-15 SERVICE
3. Re-install the Heatsink Shroud as follows:
a. Lift the Heatsink Shroud (Assembly) into po-
sition. Studs on the Power Supply base pass
through holes in the bottom flange of the
Shroud.
b. Swing the top edge of the Shroud Assembly
into place. Studs on the Center Chassis of the
Power Supply pass through holes in the top
flanges of the Shroud.
c. Ensure that the rubber feet on the Main Trans-
former engage holes in the Shroud.
d. Put hex nuts on the studs. Tighten the nuts on
the right (rear) top and bottom studs. Leave
the nuts on the left (forward) studs loose tem-
porarily.
4. Put the Fan Assembly in place per subsection
5.08-C. Reconnect the work cable to terminal E61
on the Power Output PC Board.
5. Tighten the nuts securing the left edge of the Heat-
sink Shroud Assembly. The stud and nut on the
bottom left edge fasten a wire stay to the Power
Supply.
6. Replace the grommets around the wire harnesses
passing through the right (rearward) edge of the
Heatsink Shroud.
7. Reconnect the wires to the CD PC Board.
8. Put the Torch Control Bulkhead Panel in position.
Notches on its inner edge engage slots in the cen-
ter chassis. A tab on the Heatsink Shroud secures
the Bulkhead in place.
9. Reconnect the ground wire to the center chassis,
between the CD PC Board and the Pilot Control
Relay.
10. Replace the Pressure Switch/Solenoid Assembly.
This assembly fits into a slot in the top horizontal
surface of the Heatsink Shroud. A notched pin
holds the assembly in place.
11. Connect the gas hose between the Regulator/Fil-
ter Assembly and the Gas Pressure Switch/Sole-
noid Assembly.
12. Connect wiring to the Output Power PC Board.
Refer to the Appendix pages for wiring layout.
13. Replace the Power Supply rear panel per subsec-
tion 5.07-D.
This concludes the replacement procedures.