Samuel Strapping Systems P-625, Safety, Operation, Maintenance And Parts Manual, Page: 15 / 54

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2. ENCIRCLING PACKAGE; TRIPPING LS1.
Grip and tension is initiated by the operator
who encircles the package with the strap and
inserts the strap end into the slot of the
upper strap guide on the right-hand end of
the machine. In doing so, the strap is guided
between the gripper portion of the end
gripper and anvil then into a slot in the anvil
where it makes contact with the start switch
detector lever. As the lever moves to the
left, it trips the cycle start switch, LS1.