MP34.3064A
27JUL15
WARNING:
JACK RETRACTION (HWH LCD PANEL)
THE OPERATOR MUST BE SURE THAT
THERE ARE NO OBJECTS UNDER THE VEHICLE AND THAT
ALL PEOPLE ARE CLEAR OF THE VEHICLE.
4. If jacks cannot be retracted by the above procedure see
MANUAL JACK RETRACTION Section below.
WARNING:
DO NOT MOVE THE VEHICLE WHILE THE
LEVELING JACKS ARE STILL IN CONTACT WITH THE GROUND
OR IN THE EXTEND POSITION. THIS VEHICLE IS EQUIPPED
WITH STRAIGHT-ACTING JACKS. MOVING THE VEHICLE
WITH THE LEVELING JACKS EXTENDED CAN CAUSE
SEVERE DAMAGE TO THE JACKS AND OR THE VEHICLE AND
CREATE A DRIVING HAZARD. DO NOT RELY SOLELY UPON
WARNING LIGHTS. IT IS THE OPERATOR’S RESPONSIBILITY TO
CHECK THAT ALL JACKS ARE FULLY RETRACTED INTO
3. The vehicle can be moved as soon as the word "STORE"
stops flashing, the jacks are in the STORE position and the
waring light and buzzer turn off, if the vehicle is at the
THE STORE POSITION AND THE VEHICLE IS AT
OPERATING PROCEDURES
ACTIVE AIR WITH HYDRAULIC LEVELING SYSTEM
NOTE: When traveling thermal expansion may cause
a jack to extend slightly. When the "STORE" button
has been used to retract the jacks, the system will
automatically retract any jack that extends due to
thermal expansion.
IMPORTANT: If the red warning light and buzzer come on
while traveling, the jacks and ride height should be checked
as soon as a safe parking location is found.
NOTE: When the jacks are stored with the ignition in the ON
position, the warning buzzer will sound until the jacks have
retracted to the STORE position. If desired, the jacks can be
stored with the ignition key in the accessory position. This will
eliminate the warning buzzer while the jacks are retracting.
2. Start the engine and press the "STORE" button. The LCD
panel will flash the word "STORE". The vehicle should start
to return to proper ride height. The front jacks will retract for
5 seconds before the rear jacks will begin to retract. The
system will automatically shut down 1 minute after the jacks
have retracted. If any one jack has not been fully retracted,
the system will continue to store for fifty minutes, then shut
down regardless of the jacks down condition.
LCD panel will stop the automatic store function.
pushing the "STOP" or the "RESET" button on the HWH
IMPORTANT: During the Automatic Store procedures,
IMPORTANT: If power to the system is interrupted
after starting a store procedure , the store procedure
should be reinitiated and the jacks should be completely
retracted with all four jacks out prior to traveling.
THE PROPER RIDE HEIGHT.
proper ride height for traveling.
It is recommended to retract any room extensions
before retracting the jacks.
1. It is recommended to start the engine before storing the
jacks. This will allow air pressure to build. If starting the engine
before storing the jacks, the HWH "STORE" button should be
pushed immediately after starting the engine.
MANUAL JACK RETRACTION
large and / or small valves.
NOTE: Assemblies can have different combinations of
release for retracting only if the "STORE" button on the LCD
equipped with a manual valve release. Use the manual valve
The solenoid valves on the power unit valve assembly are
DO NOT CRAWL UNDER THE VEHICLE, KEEP A SAFE
DISTANCE IN FRONT AND REAR OF THE VEHICLE.
THE VEHICLE MAY DROP AND/OR MOVE FORWARD
OR BACKWARD WITHOUT WARNING AS THE VALVE
RELEASE IS OPERATED.
1. Locate the manual valve release on each solenoid valve. The
solenoid valves are located on the power unit/valve assembly.
2. Allow clearance for the vehicle to lower.
WARNING:
KEEP AWAY FROM THE WHEELS,
5. Check that all four jacks are now retracted.
6. Close the valves by moving the valve release cam to
7. The system should now be repaired before using again.
3. Retract the front jacks by slowly opening the two center valves.
4. Repeat the process for the rear jacks by opening the two outer valves.
the closed position.
CLOSED
VALVE
OPEN
CLOSE
VALVE
OPENED
VALVE RELEASE CAM OPERATION
panel will not retract the jacks for travel.
Large and small valves will be equipped with a valve
release cam. The cam might be rotated in any direction
on the valve. Pushing the release cam in the wrong
direction may damage the valve.
coach with an existing HWH hydraulic leveling system,
NOTE: If the Active Air system has been installed on a
the valves may not have release cams as shown. See
MP84.9999 for valve release information.
