General Machine Products 70601 Adams CD Lite Winch - Manual (Page 10)

tank; Control valve through power beyond to hydraulic system; Control valve work ports to winch mo-
tor ports. Suggested Filtration, based on the hydraulic motor requirements, is 20 to 30 micron (nominal)
filters. Consult the filter supplier for specific filter recommendation.
The hydraulic motor case drain (
1 /
4
NPT) should be ported to tank. Identification of connections from
the individual valve ports to the motor ports is shown in drawing 30575.
The full load brake requires a certain minimum amount of back pressure to release. Back pressure may
have to be induced dependent upon system pressure.
3.03 WINCH CLUTCH - The clutch plate is motivated by an air cylinder assembly that is
mounted to the hanger assembly. The fork is connected to the piston rod in the air cylinder and the fork
contains two cam followers which ride in a groove on the clutch plate. The air cylinder is plumbed to a
two position four-way directional control valve. The directional control valve is electrically operated,
and is rated for 12 volts DC with a continuous duty rating of 100%. A regulator is provided for main-
taining a normal setting of 30 psi (207 kPa) supply pressure to the directional control valve. A Schrader-
type valve stem is provided on the regulator for connection of a pressure gauge to allow for monitoring
of the input pressure to the cylinder during regulator adjustment.
The regulator has a c in. PTF port for the incoming air supply. The directional control valve and the cyl-
inder are plumbed at the factory. At the time of installation, the only connection required is the air sup-
ply line to the aforementioned regulator port. Refer to drawing 25686.
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