Rev: 05.26.23 Page 6 CCD-0007708
5. Measure and make the hydraulic hoses (orange for extend, black for retract).
NOTE: Always follow the manufacturer's specifications for the correct minimum bend radius throughout
the entirety of the hose route. Use gauges to verify areas with questionably tight bends. Fitting
orientation can be adjusted in some applications. The correct bend radius is shown in Fig. 4.
A. Measure the distance between the rear leveling jack to the mid jack.
I. Add three feet to this measurement to make sure that there will be enough hose material to
run between jacks and prevent kinking.
II. This will be the measurement for the extend and retract hoses between mid and rear jacks.
B. Measure from the hydraulic power unit location to the landing gear on the side of the trailer
closest to the hydraulic power unit location.
I. Add three feet to this measurement.
NOTE: Always follow the manufacturer's specifications for the correct minimum bend radius throughout
the entirety of the hose route. Use gauges to verify areas with questionably tight bends. Fitting
orientation can be adjusted in some applications. The correct bend radius is shown in Fig. 4.
II. This will be the length of the retract and extend hoses from the power unit to the landing
gear on the side of the trailer closest to the hydraulic power unit.
NOTE: When installing system, measure and make the hydraulic hoses (orange for extend, black for
retract). Measure from the rear leveling jack to the mid leveling jack. Add 3 feet to this measurement
to ensure that there will be enough hose material to run between jacks and prevent kinking. This
will be the measurement for the extend and retract hoses between the mid and rear jacks. For
example, if the measurement is 9 ft., two 12 ft. orange hoses and two 12 ft. black hoses would be
made. One 9 ft. black hose will need to be made to connect two rear jacks on the retract plumbing.
NOTE: All hoses must be run on top of the foil insulation inside the underbelly and through the chassis
frame cross members. See the Plumbing Diagram for full details on the measuring, making, and
installation of these hoses.
NOTE: Make sure hoses and wires are protected with a grommet or other sharp edge protection and
properly fastened.
6. Secure all hoses to the proper fittings on each jack. Orange (extend) hoses connect to the fittings
closest to the frame. Black (retract) hoses connect to the fittings farthest away from the frame. See also
the Plumbing Diagram for a color-coded illustration of the hose orientation.
Fig. 4
3" Diameter Minimum
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