Empire EMT-7R, Instruction & Parts Manual

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Air/Oil Hydraulic with Foot Pedal Control
The Air/Oil with foot pedal control uses the same feed system as the programmable
control for the top shaft but the difference in the way it is actuated is by means of a two
position foot pedal allowing hands free operation of the EMT-7R. There are two separate
micro switches in the foot pedal and they operate as follows. When you press on the
pedal halfway down the rolls begin to turn and then by pressing the pedal all the way to
the floor you then activate the air/hydraulic system causing the top shaft to start traveling
down. To jog the top shaft down and then hold it at a desired position just bring the
pedal back to the halfway point and keep your foot there and the top shaft will stop it
movement and hold in that position. To continue stepping down the top shaft you can
lightly tap your foot to the floor and bring it back to the center position until the desired
depth for your profile is achieved. Once your part is finished raise your foot completely
off the foot pedal and the top shaft will return to its home position and the rolls will stop
rotating. For repetitive parts where a certain depth is required for each part the stop nut
on the top of the hydraulic cylinder can be turned up or down and can be used as an
indicator to the operator that the desired depth has been reached.
**A pressure relief valve is part of the hydraulic package so it is safe to bring the
rolls together under load where a larger amount of pressure is required to form
your profile. Once the pressure builds to a set value the pressure relief valve will
open and oil will bypass the cylinder and safely return to the tank.