Hydraulic Solenoid Valves

[cadiwa]

On my ‘08 Allegro Bus I have a cluster of 6 hydraulic solenoids under the front RH corner of the coach (hydraulic lines & wires) can someone please tell me what these solenoids do?

Wayne

[harris155]

Leveling Struts, Hydraulic slides.

[cadiwa]

Yes I know they are hydraulic components. I would like to know what they do in the hydraulic system.

[n2zon]

Originally Posted by cadiwa

Yes I know they are hydraulic components. I would like to know what they do in the hydraulic system.

The control the flow of hydraulic fluid to the actuators (jacks or slides) in both directions. For example, one or more of them open at a time with the pump running to extend the jacks; to retract the jacks, two or more open to allow the springs on the jacks to retract the pistons with the pump off.

[Dennis123]

Originally Posted by cadiwa

Yes I know they are hydraulic components. I would like to know what they do in the hydraulic system.

They are also there just in case your slides or Jack's quit. Flip the toggle looking switches and it will relieve the hydraulic pressure so you can manually push or pull your slides or jacks.

[n2zon]

Originally Posted by Dennis123

They are also there just in case your slides or Jack's quit. Flip the toggle looking switches and it will relieve the hydraulic pressure so you can manually push or pull your slides or jacks.

What kind of unit does this refer to? I ask because our HWH unit (for the jacks only) has mechanical releases. I don't know that it has a way to do it electrically, but it would be a lot easier!

[garykk]

Originally Posted by n2zon

What kind of unit does this refer to? I ask because our HWH unit (for the jacks only) has mechanical releases. I don't know that it has a way to do it electrically, but it would be a lot easier!

Each solenoid as mentioned above should have a toggle for manual release and also there should be a wire to each that activates the solenoid when you either extend or retract your jacks from inside the coach.
Find the model number of your HWH system, with that you can go to the HWH website and download the operating manual for your system along with diagrams of the systems.