Gullco SAM CM-02-250 - Manual (Page 7)

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GENERAL DESCRIPTION
The Gullco GM-02-250 SAM
®
carriage is a portable, four wheeled, friction drive, submerged arc
welding travel carriage. It is an electrically powered, self propelled carriage that travels in forward
and reverse directions at precisely controlled speeds. It consists of a 24 VDC permanent magnet
gear motor which engages with the wheel axles through chain and sprocket arrangements which
allows both axles to impart a tractive effort through the four rubber tired, friction drive wheels. The
motor’s clutch mechanism in engaged and disengaged through a foot operated lever.
Safety is greatly enhanced by the use of Gullco’s low voltage (24 VDC), highly advanced carriage
drive and control system, which incorporate a closed loop tach feedback system to ensure precise
carriage travel speeds.
INTENDED FORESEEN USAGE
The Gullco heavy duty SAM
®
is intended to automate and improve the quality of Submerged Arc
welding operations. The SAM
®
is normally guided by adjustable guide wheels which are set to
always drive the carriage slightly into the vertical member (usually either the vertical piece of a fillet
joint or a template/fence placed parallel to the joint). Using the Gullco SAM
®
travel carriage system
will add accuracy and uniformity to welding operations while increasing productivity. Typical
applications include shipbuilding, offshore construction, steel fabrication industries, etc...
ELECTRICAL CONNECTION
WARNING! Ensure proper AC earth grounding of the Gullco SAM
®
carriage and all auxiliary
equipment (where applicable), before applying power. Failure to do so may
invalidate the Gullco Warranty.
The label shown below is typical of the product label applied to the SAM® carriage:
The sketch below diagrammatically shows the arrangement of the electrical cable connections.
Each multi-pin connector is different to prevent incorrect connection: