HYDRAULIC SYSTEM RECOMMENDATIONS
Note: These parts are listed as minimum expectations for the Superwinch SI Series to perform to
its fullest.
System Type Open system with filtered return line
Relief Valve Set at winch operating pressure
Pump A max oil supply of 15 gallons per minute (57 Liters/ per minute) at top
motor RPM. The pump must be capable of delivering a pressure of 2320
PSI or 160 bar.
Reservoir Must be fitted with an oil filler device comprising of a strainer, an air filter,
and a dip stick. The capacity of the tank should be at least 15.8 gal (60 L).
Note: Do not fill the tank to the top, since there must be space for
expansion in the tank. Suitable hydraulic oil is Castrol CRML or
equivalent. Typical viscosity rating of 150 – 175 CST at 100 degrees C
Hoses Hoses should have a working pressure of 2900 psi (200 bar) or greater.
Pressure and flow loss is increased as hose length increases and/or bore
sizes decreases. Pressure and return lines in excess of 11.5 ft. (3.5 m)
should be compensated with an increase in nominal bore size.
Control Valve 4- way, 3- position self-centering with ports A & B to tank in the neutral
position and built in relief valve. The relief valve must be set at the winch
operating pressure. The valve should be mounted as close to the winch
as possible.
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