Manual Retract Valves; Maintenance - Holiday Navigator 2003 Owner's Manual

Chassis Information
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Manual Retract
Valves

Maintenance

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Manual Retract Valves:

The hydraulic pump is located at the curbside front with easy access
through the generator compartment. The manifold and valve assembly is
mounted on the pump motor, providing access to the manual retract valves.
In case of mechanical or electrical failure that would prevent the leveling
jacks from being automatically retracted, the motorhome is equipped with
manual emergency retract valves. The manual retract system releases fluid that
is under pressure in each jack and allows the fluid to return to the reservoir.
CAUTION: The motorhome will raise or lower when the manual
retract valves are opened. If it becomes necessary to manually
retract the jacks, do not crawl under the motorhome to access the
valves. Make sure there is sufficient clearance so the valves may be
opened safely.
To operate the manual system:
• Turn all three T-handle valves counterclockwise until they stop.
When the jacks are fully retracted, rotate all the valves fully
clockwise. In case one of the jacks is not holding pressure, one of
the manual retract valves may not be fully tightened.
Occasionally, when the jacks are fully extended, wipe off the dirt from the
jack rod. This will help lengthen the life of the jacks. How often this is done
can vary from the amount and type of usage of the jacks. WD-40 will serve as
a solvent, as well as a lubricant. Occasional oil or grease on the extended jack
ram is normal and aids in the lubrication of the seals.
Component Replacement Model JII-45S:
The system is designed to be self purging in the event any component of
the hydraulic system has been removed or repaired.
To purge the system:
• Fully extend and retract each jack twice.
Calibration:
The transmitter module may require calibrating to obtain an accurate level
indication. The calibration procedure requires two persons for convenience and
accuracy. This should only be performed by qualified service technicians.
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