Standard Hydraulic Control Unit.

Most commonly used on most motor homes but can also be used on specialty vehicles and trailers. Can only be used with spring-retract jacks. One solenoid valve for each jack. Can have four large solenoid valves, four small solenoid valves or a combination of two large, two small solenoid valves and a shuttle valve.

TOP VIEW

Standard Hydraulic Control Unit with Lock/Equalize Valve.

This control unit is only used for non-motorized vehicles with spring-retract jacks. The valve location and connections are different from the standard manifold. There is one valve per jack with a fifth valve called the lock valve. This control unit will usually have all large valves but may have a combination of large and/or small valves. The manifold also has a shuttle valve.

VIEW FROM TANK END

Hydraulic Control Unit

with Two Solenoid Valves per Jack

and an Auxiliary Hand Pump

Most commonly used on specialty vehicles and trailers with power retract jacks. This control unit has two valves for each jack or function. One valve for extending the jack and one for retracting the jack. This control unit is used with power retract jacks, spring-retract jacks or a combination of the two. The hand pump can be used to extend either power retract or spring-retract jacks. The hand pump can only be used to retract power retract jacks. This can also be used with a remote manifold for two front or rear jacks.

TOP VIEW

Hydraulic Control Unit

with Two Solenoid Valves for Each Jack

Most commonly used on specialty vehicles and trailers with power retract jacks when an auxiliary hand pump was not requested. This control unit has two valves for each jack or function. One valve for extending the jack and one for retracting the jack. This control unit is used with power retract jacks, spring-retract jacks or a combination of the two. This can also be used with a remote manifold for two front or rear jacks.

TOP VIEW