Tweco 400 Ultra-Cut(March 2013) - Manual (Page 53)

Manual No. 0-5163 3-27 INSTALLATION
ULTRA-CUT 400
3. Attach all hoses and cables to the back of the DMC-3000 except the Fiber Optic cable which will be covered a
little later. Avoid turning any fittings already mounted in the unit by placing a wrench on it before tightening
the hose fitting to it.
Art # A-09141
NOTE
Argon must be used for the “Marking” gas. If replacing existing fittings in the base, apply thread sealant to the fit-
ting threads, according to manufacturer’s instructions. Do not use Teflon tape as a thread sealer, as small particles
of the tape may break off and block the small air passages in the torch.
NOTE
If you need to replace a gas or water fitting all inlets and outlets of the aluminum manifold are 1/4” NPT (United
States National Pipe Thread) into which are screwed the various adapters.
4. Connect the ground cable to rear of DMC-3000 shown in previous illustration.