General Machine Products 70601 Adams CD Lite Winch - Manual (Page 11)

A terminal strip is provided for the electrical connection to the directional control valve. The terminal
strip is located on the hanger assembly on the outboard side. A two position switch should be used to
energize the solenoids in the directional control valve. The solenoids control the positioning of the valve
spool thereby directing the airflow to the two ports on the air cylinder. There are eight screws on the
terminal strip. Three screws are for the directional control valve and four screws are for the limit sen-
sors. Refer to drawing 25777 for a schematic depiction of the electricial connections.
Important! Reverse wiring will destroy the solid state electronic components in the sensors.
The fork attached to the piston rod moves the clutch plate after the switch is activated. However, the
drum shaft may have to be rotated slowly to ensure full travel of the clutch plate and completion of the
engagement cycle.
A clutch position sensing feature is standard equipment on the CD Lite winch. The output can be wired
to a set of lights to provide the operator with an indication of clutch engagement or disengagement.
The air cylinder that actuates the clutch is equipped with a solid state digital output limit sensor at each
end of the cylinder. When the sensor detects the magnetic piston, the current sinking device completes
the circuit by connecting the load to the ground. The sensors are magnetically activated and while the
work on the same principle as Hall effect sensors, they are extremely more sensitive. The sensors are
100% solid state devices. They have no moving parts to wear, break, bounce or stick and they are fully
encapsulated in plastic resin.
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