Tweco 400 Ultra-Cut(March 2013) - Manual (Page 50)

INSTALLATION 3-24 Manual No. 0-5163
ULTRA-CUT 400
Attach and tighten all #6 JIC fittings with 11/16” (18mm) wrench. Do not overtighten as it will strip the fitting threads
and will cause a leak. Do not start the Ultracut without coolant in the reservoir. An additional gallon (3.78l) of
coolant is required to compensate for the HE400 being attached to the system. Monitor the fluid level while filling
the UltraCut. Do not allow the coolant reservoir level to drop below minimum.
Attach the J71 cable after the Cooler and coolant lines have been determined to be leak free.
J71
To Ultra-Cut
Return Supply
To Arc Starter
Return Supply
Art # A-09624
Under low power plasma cutting the HE400 may not come on. This is normal operation.
Periodically check obstructions in the radiator and remove them by vacuuming the fins. Do not use cleaners or
fluids to remove debris, they may affect the radiator integrity.