0: GATHER MATERIALS AND DISCHARGE
Gather the torch wiring kit, your plasma cutter, a multimeter, tape (or another method o depress the torch trigger) and the hand tools needed to open the plasma cutter. We'll be using the Razorweld Vipercut 30 in this example.
Unplug your plasma cutter and wait for at least 10 minutes before proceeding in order to provide sufficient time for the internal capacitors to discharge.
Disconnect the torch hose from the plasma cutter power supply.
1: CHECK FOR CONTINUITY - TRIGGER NOT DEPRESSED
With the trigger not depressed, use your multimeter to check if there is continuity between any sets of pins. If there is continuity between a set of pins, make note of them.
2: CHECK FOR CONTINUITY - TRIGGER DEPRESSED
Use a piece of tape to temporarily depress the torch trigger.
Again check for continuity between sets of pins with your multimeter.
The set of pins that did not have continuity when the trigger was not depressed, but do now, are the trigger wire pins. Make note of their location in the connector.
3: PIN COMPARISON
Make note of the location of the trigger wire pin receivers in the female connector on the plasma cutter.
4: OPEN CUTTER CABINET
Remove the cover of your plasma cutter cabinet. Some plasma cutters will require tools to accomplish this. The objective is to gain access to the wires that connect to the torch hose connector mounted to the exterior of your plasma cutter.
Once open, identify the wires inside of the plasma cutter cabinet that correspond to the trigger wire pin receivers in the female connector.
5: ATTACH T-TAP CONNECTORS
Attach the T-tap connectors to the trigger wires. You may need to use a set of pliers to clamp them onto the wires to ensure that the clasps fully lock.
Langmuir Systems provides 3 different sizes of T-taps for different gauge wires. Please use the appropriately sized tap for your wire: Not too wide of a slot so it doesn't cut the wire insulation and not too tight where you can't snap it on.
Once snapped into place, work the connector back and forth a few times (half turns) to ensure the insulation is cut and the metal is exposed to the connector.
6: CONNECT TORCH FIRING CABLE
Locate the torch firing cable that was provided with your machine and connect the blade connectors to the T-Tap connectors.
It does not matter which blade connector gets plugged into which T-tap connector. The polarity and wire coloring is not important.
7: TORCH WIRING TEST
Plug the torch hose back into the plasma cutter.
With the torch trigger depressed, check the continuity between the two bare ends of the torch fire cable. If you spliced into the correct wires, there should be continuity. If not, go back and verify that the correct wires were identified in Step 3.
Release the trigger. Verify that there is no longer continuity between the two bare ends of the torch fire cable.
8: CLOSE PLASMA CUTTER
Reinstall the cover on the plasma cutter cabinet with the torch fire cable exiting the cabinet in a convenient location. Make sure that there are no sharp edges that could damage the torch fire wire insulation. Add additional abrasion protection as needed.
9: PLUG IN PLASMA CUTTER
Plug the male end of the torch fire cable into the 'Torch On/Off' jack in the electronics enclosure.
As instructed in our cutting tutorials, plug in the plasma cutter with torch installed only when the torch is installed into the Torch Mount for firing safety.