Tweco 7-3481 - Manuel (Page 2)

June 4, 2003 / 4 Juin, 2003 2 Manual / Manuel 0-2978
B. Installing Adapter Kit
1. On the torch leads or adapter leads, remove the
tie wrap and insulation sleeve covering two wires
joined with mating connectors.
2. Remove the nut from the Strain Relief assembly.
3. Install the Strain Relief on the torch leads or
adapter leads. The Strain Relief includes an in-
ner rubber ring. It may be easiest to install the
strain relief by removing the rubber ring and
stretching it over the wires and fittings on the end
of the torch leads or adapter leads.
4. Pass the torch leads or adapter leads through the
hole in the front of the power supply. Install the
strain relief nut on the leads. Secure the strain
relief in place with the strain relief securing nut.
Do not tighten the strain relief onto the leads.
WARNING
THIS ADAPTER KIT INCLUDES A LEAD
SUPPORT BRACKET WHICH MUST BE IN-
STALLED AS SHOWN AND DESCRIBED FOR
PROPER TORCH OPERATION.
5. Refer to the illustration. Place the lead support
bracket on the RPT Adapter fitting (with power
supply transformer lead). Position the fitting and
bracket diagonally into the opening in the power
supply chassis just above the relay. Rotate the
bracket and fitting to a vertical position. Slots in
the top and bottom edges of the support bracket
must engage the edges of the opening in the power
supply chassis just above the relay.
6. Connect the negative / plasma lead (O2B fitting)
on the torch leads or adapter leads to the torch
adapter. Use wrenches to tighten the fittings. Do
not use a tool on the inner nut securing the large
ring terminal to the adapter fitting.
CAUTION
Do not use Teflon tape as a sealant on these fit-
tings, as small particles of the tape can break off
and block the small passages in the torch.
7. Test the positioning of the RPT Adapter in the
chassis opening. The Adapter must not be able
to contact any other power supply parts.
8. The adapter fitting includes a wire with a ring
terminal. Connect this wire to the transformer
assembly in the lower left front corner of the
power supply, along with the wire disconnected
from the transformer when removing the origi-
nal quick-disconnect fitting.
Negative/Plasma
Lead (O2B Fitting)
ATC Adapter Kit
Torch Leads
Assembly
A-03630
Strain Relief
Securing Nut
Strain Relief
Assembly
Strain Relief
Dome Nut
Power Supply
Gas Line
To Power Supply
Transformer
To Power Supply
Pilot Relay
Butt Splices
Adapter Kit
Wire Harness
To Power Supply
Control Wiring
Min. 1/2" Clearance to
Power Supply Chassis
Lead Support
Bracket
RPT Adapter
To Power Supply
Transformer
Min. 1/2" Clearance to
Power Supply Chassis Opening
Top and Bottom of
Lead Support Bracket
Must Engage Power
Supply Chassis Opening
Power Supply
Chassis
Adapter
Positioning Detail