Gullco GP-250 - Manual (Page 15)

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GP-200-016 (GP-250 & GPP-250)
GP-300-002 (GP-350)
GP-250, GPP-250 OR GP-350
LOADING
Before mounting any load to the positioner, the tilt locking adjustable lever should be tested for
tightness. When loading the work piece onto the table, take account of the weight, centroid
eccentricity and centroid height of both the work piece and all clamping fixtures. When the work
piece is large and its weight is one sided at the peripheral portion, inertia start and stop is severe
and can cause an overload situation. Wherever possible, counterbalance weights should be used
to reduce this stress. Take into consideration the additional weight and distribution of the
counterbalance.
WARNING! Lower work pieces onto the turntable gently. Impact and shock loads are many
times greater than the "dead-weight” of the work-piece. Dropping loads onto the
table can result in damage!
WARNING! Do not use impact or shock techniques to clamp and unclamp self-centering grippers
mounted to the positioner turntable. The shock will be transferred to the drive
system resulting in damage!
ACCESSORIES
GK-191-P-071 Arc signal relay kit. This kit provides an internal wiring harness; an isolated relay
and quick connect receptacle circuit board assembly; and an external cable with
mating quick connect plug. It is used to provide an isolated closed circuit signal to
activate the welding/cutting equipment at appropriate times during the automatic
cycle. Arc signal relay kits can be paralleled together to provide simultaneous arc
activation signals to multiple welding/cutting machines.