For RVs equipped with slide-out rooms, hydraulic cylinders are the life of the
apparatus and enable quick and easy actuation of the system. Many camping
enthusiasts prefer to use hydraulic models because they are faster and smoother
than electric models. These hydraulic models are also a prime solution for RVs
that have multiple slide systems.
Many slide out systems contain between 1 and 4
cylinders. If your system has cylinders that have worn out and need to be
replaced, first identify which of them needs attention by testing each
cylinder, one at a time, with the slide-outs retracted.
Once you have determined which cylinders need to
be replaced, extend all of the slide outs fully, note the exact location of the
Nylock nut, and then remove it from the threaded portion of the piston rod.
Then retract the cylinder you wish to replace before removing the extend
fitting from it with the hose attached; install this in the extend port of the
new cylinder.
Then, extend the old cylinder once more, remove
the retract fitting with the hose attached and install it in the retract port
of the new cylinder. Replace the original Nylock nut in the location of the new
hydraulic cylinder that corresponds
to the exact location of the old cylinder.
Retract the room, then extend and retract the
slideout once more to expel any air that may have been introduced to the system
during replacement. For more information on replacing these cylinders or how to test units with no IRC (Individual Room Control)
systems, please consult the previous links.
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