Lippert Components Hydraulic Through Frame Slideout - Manual (Page 8)

Rev: 07.09.2014
Page 8
Hydraulic Through Frame Slideout Owners Manual
Hydraulic slideout cylinder retract test
1. Retract (close) all slideouts (rooms) completely.
2. Disconnect all rooms from system (if coach is equipped with IRC, close all but one room).
3. Loosen hose from "E" (extend) port on the manifold of the power unit.
4. Plug opening on manifold to prevent drawing air into the system.
Do not attempt to run room out with the "E" port hose loose. The system will experience rapid fluid loss.
5. Energize the pump unit to retract (close) room.
6. When room is fully retracted, continue to run the room in and watch for fluid flow from hose/port "E".
Fluid flow greater than a few drops will indicate internal cylinder leaking (bypassing of piston seal). If
greater than a few drops leak from hose fitting, piston seal is bad and will need to be replaced. If there
is no fluid flow, reconnect hose to "E" port and tighten.
7. Repeat steps 2 through 6 for each slideout until all slideouts have been tested. Energize the pump unit
to retract (close) room.
Be sure to reconnect and tighten hose at the "E" port before attempting to extend (open) the room or the
system will experience rapid fluid loss.
Hydraulic slideout cylinder extend test
1. Extend (open) all slideouts (rooms) completely.
2. Disconnect all rooms from system (if coach is equipped with IRC, open all but one room).
3. Loosen hose from "R" (retract) port on the manifold of the power unit. Individual slideouts can be
tested if the unit is equipped with an IRC block. Close all valves in IRC except the one to be tested.
4. Plug opening on manifold to prevent drawing air into the system.
Do not attempt to run room in (retract) with the "R" port hose loose. The system will experience rapid
fluid loss.
5. Energize the pump unit to extend (open) room.
6. Continue to run the room out and watch for fluid flow from hose/port "R" (or IRC block if coach is
equipped with IRC). Fluid flow greater than a few drops will indicate internal leaking (bypassing of
piston seal). If greater than a few drops leak from hose fitting, piston seal is bad and will need to be
replaced. If there is no fluid flow, reconnect hose to "R" port and tighten.
7. Repeat steps 2 through 6 for each slideout until all slideouts have been tested.
Be sure to reconnect and tighten hose at the "R" port before attempting to retract (close) the room or the
system will experience rapid fluid loss.