PART III
MI35.2017
18SEP95
8. MOUNTING THE SENSING UNIT:
can be mounted above or below the surface as long as the
"This Side Up" sticker (FIGURE 10) is facing up and the "Rear"
arrow is pointing to the rear of the coach. The sensing unit
must be mounted to a solid surface that will not flex. Do NOT
mount the sensing unit near any heat-emitting items. Outside
of the frame rails is preferred. The sensing unit must be at
least 12" away from exhaust pipes or other high temperature
components, and must not be in line of sight from these high
temperature components.
9. FLUIDS: Use Mercon, Multipurpose or Dexron automatic
transmission fluid. DO NOT USE brake fluid or hydraulic
jack fluid. Use of these fluids can damage seals. The hydraulic
tank should be filled to within 1" from the top.
Air Dump - Optional
The air dump feature is used only on coaches with full air bag
suspension, not on coaches with spring suspensions and air
booster bags.
Most coaches have three height control valves; one for the
right rear air bag, one for the left rear air bag, and one for
the front two air bags, OR one for the two rear bags, one for
left front air bag, and one for the right front air bag.
An air dump solenoid valve must be teed into the air line be-
tween each height control valve and the air bag it controls.
(See the Air Line Connection Diagram).
On the 200 Series, the air dump signal is on the yellow wires
coming from the control panel. There is one connection at the
front of the vehicle and one at the rear. A Tee adaptor is sup-
plied with the control system. This will connect two dump val-
ves to one harness connection at the front or rear of the ve-
hicle. (Refer to ELECTRICAL CONNECTION DIAGRAM WITH
SUSPENSION AIR DUMP.)
COMPONENT INSTALLATION
The Level Sensing Unit
SURFACE
MOUNTING
BELOW THE SURFACE MOUNTING
SCREWS (3)
REAR
THIS
SIDE
STICKERS
ON TOP
UP
FIGURE 10
LEVEL SENSING UNIT
SPRINGS (3)
