HWH 680 Series Operator's Manual page 7

NOTE: The ignition must be in the "ON" position to use the "AIR",
button. Once the operation is started, the ignition can be moved
to the "OFF" position and the operation will continue.
1. Place the transmission in the proper position for parking and
set the park brake. The air leveling system can only be turned on
if the ignition is in the "ON" position. Running the vehicle engine during
air leveling is recommended. This will provide a better air supply
for leveling. The vehicle will level with the engine shut off, how-
ever more time will be required for leveling.
NOTE: If the ignition key is in the "ON" position the panel will
not turn on if the park brake is not set. The "NOT IN PARK/BRAKE"
light will come on while the "AIR" button is being pushed.
2. Press the "AIR" button once to enter the air mode. The AIR
OPERATION indicator light will glow steady. When the ignition is
in the "ON" position, the four red WARNING lights on the panel
will come on. This indicates that the height control valves
The "DUMP" and "RAISE" functions are provided for operator
convenience for purposes such as dumping air suspension
when parked in the wind or raising or lowering the vehicle to
avoid an obstacle.
The vehicles ignition must be in the ON position to use the
"DUMP' or "RAISE" buttons. The park brake does not have
to be set.
IMPORTANT: The "DUMP" and "RAISE" functions will latch
in and remain on if the vehicle is moving at a speed less than
approximately 5 MPH. If the speed exceeds 5 MPH, the
"DUMP" or "RAISE" function will automatically turn off and
the vehicle should return to ride height. The vehicle will not
return to ride height unless the "OFF" button on the leveling
system panel is pushed or the vehicle speed exceeds 5 MPH.
CAUTION:
REREAD CAUTIONS ON THE FIRST
PAGE OF THIS MANUAL. THE VEHICLE MAY DROP OR
RAISE AND / OR MOVE FORWARD OR BACKWARD
WITH OUT WARNING CAUSING INJURY OR DEATH.
DO NOT OPERATE THE VEHICLE OVER 5 MPH UNLESS
THE AIR SUSPENSION IS AT THE PROPER HEIGHT FOR
TRAVEL.
OPERATING PROCEDURES
AIR OPERATION (Cont'd)
MANUAL AIR OPERATION
have been locked out. The vehicle should not be moved when
these lights are on.
3. The vehicle can now be leveled using the RAISE (up arrow)
and LOWER (down arrow) buttons on the right half of the panel
in conjunction with the yellow LEVEL indicator lights. Any side
to side leveling should be done before leveling the vehicle
front to rear. Try leveling the vehicle by lowering the opposite
side or end. If a level position is not achieved use the RAISE
(up arrow) button to raise the low side or end. The yellow
LEVEL indicator light indicates that side or end is low. When
all yellow lights are out the vehicle is level.
NOTE:
manually leveling the vehicle with air, the system will latch into
the dump or raise mode until the "OFF" button is pushed.
4. Turn the ignition to the "OFF" position.
5. Turn the system off.
"DUMP" AND "RAISE" FUNCTIONS
Press the "RAISE" or "DUMP" button as desired to raise or
lower the vehicle. The "RAISE" function will perform better if
the vehicle engine is running. The desired function will latch
in when the button is pushed. The vehicle will raise or lower
as far as the suspension will allow.
If the vehicle is moving faster than 5 MPH, the vehicle will
raise or lower only while the button is being pushed. When
the button is released, the vehicle will return to ride height.
The vehicle will return to ride height when the vehicle speed
exceeds 5 MPH or if the "OFF" button on the touch panel is
pushed.
If desired for clearing an obstacle the vehicle may be moved
while in the "RAISE" or "DUMP" mode.
DO NOT operate the vehicle over 5 MPH or for extended
distances unless the air suspension is at the proper
height for travel. The vehicle will not return to ride height
until the "OFF" button is pushed or the vehicle exceeds
5 MPH.
CAUTION:
ITY TO CHECK THAT THE VEHICLE IS AT THE PROPER
RIDE HEIGHT FOR TRAVELING.
If the "DUMP" or "RAISE" buttons are pushed while
IT IS THE OPERATOR'S RESPONSIBLE-
MP35.4750
19JAN00