HWH 680 Series Operator's Manual page 15

Level the vehicle by placing a circular bubble level in the
center of the freezer floor or location within the vehicle that is
to be level. With the vehicle level, adjust the sensing unit
until all yellow lights are off. This is done by drawing up the
corresponding screw if the sensing unit is mounted below
the surface, as shown, or backing out the corresponding
screw if the sensing unit is mounted above the surface.
Bump the sensing unit to see that it has settled down in the
level position.
CAUTION:
WHEN MAKING THIS CHECK, BLOCK
THE VEHICLES WHEELS SECURELY SO THE VEHICLE
CANNOT ROLL FORWARD OR BACKWARD.
Set the park brake. Switch the ignition to the "ON" position.
Press the "AIR" button one time. Release the parking brake
Water leakage into the interior of the coach from around the
room may indicate lack of continuous contact by the
pneumatic seal around the room. This can result from a
foreign object caught between the seal and mating surface,
MAINTENANCE
LEVEL SENSING UNIT ADJUSTMENT
"NOT IN PARK/BRAKE" CHECK
ROOM EXTENSION PNEUMATIC SEAL
NOTE : If any of the above checks or inspections reveal a
problem or if there are other problems or questions, consult
a qualified RV repair center, your vehicle or coach
manufacturer or HWH CORPORATION (1-800-321-3494)
for service or repair.
REAR
THIS
SIDE
UP
STICKER
ON TOP
SCREWS (3)
LEVEL SENSING UNIT
BELOW THE SURFACE MOUNTING
and confirm that the "NOT IN PARK/BRAKE" indicator light
comes on. Reset the parking brake. The "NOT IN PARK/
BRAKE" indicator light should go out. Switch the ignition to
"OFF".
a kinked seal, or lack of proper seal inflation. Visually
inspect the seal and it's extended mating surface by looking
across the top of the room from above the driver's seat.
MOUNTING
SURFACE
SPRINGS (3)
MP45.4705
30JAN01