Tweco 7-3456 - Manuel (Page 2)

Manual / Manuel 0-2892 2 December 30, 2002 / 30 Decembre, 2002
3. Slide the rubber boot, small end first, onto the torch leads or ATC Adapter. Slide the boot up far enough to
allow access to the fittings and connections.
4. Cut the plastic tie wrap off the sleeved wires connected to each other on the torch leads or ATC Adapter.
Remove the insulating sleeve.
5. Disconnect the connectors between the small joined wires on the torch leads or ATC Adapter. Remove the nut
and internal star washer from the threaded stud on the RPT Adapter.
6. Slide the large insulating sleeve onto the negative/plasma fitting (only) on the torch leads or ATC Adapter.
The sleeve must not enclose the torch control wiring. Fold the end of the insulator back (refer to illustration)
temporarily for access to the negative/plasma fitting.
7. Connect the negative/plasma fitting on the torch leads or ATC Adapter to the gas fitting on the RPT Adapter.
Do not use thread sealant. Use a wrench to hold the gas fitting on the RPT adapter stationary. Turn only the
negative/plasma fitting on the torch leads or ATC Adapter. Tighten securely. Slide the insulating sleeve over
the connection between the negative/plasma fitting and the RPT adapter gas fitting. Unfold the insulating
sleeve to cover the connection.
8. Slide the small insulating sleeve over the torch leads or ATC Adapter wire with a ring tongue connector. Use
the washer and hex nut to connect the ring tongue connector to the threaded stud on the RPT Adapter. Tighten
securely. Bend the ring tongue connector to a 90° angle. Slide the insulating sleeve down to the washer and
nut.
9. Match the mating wire connectors to connect the remaining torch leads or ATC Adapter wires to the RPT
Adapter wires. There are two sizes and two types of connector.
10. Position one shell half on the assembly. Grooves inside the shell halves capture the center assembly and the
rubber boot. Alignment keys inside the shell halves engage alignment notches on the center fitting. Rotate
the shell half to ensure that the key engages the alignment notch.
11. Arrange the wires and connectors evenly around the gas line. Slide the rubber boot down from the torch
leads or ATC Adapter. Ensure that the end ring on the boot engages the groove next to the screw holes inside
the shell half.
12. Install the second shell half. Position the shell half to ensure that its alignment key engages the alignment
notch on the center fitting. Press the halves of the shell together by hand. Ensure that there are no wires
caught between the outer edges of the shells. Fasten the shell halves together with four screws.