8
MN-750
STEP BY STEP INSTALLATION
We recommend that you install the air spring kit rst per the instructions provided with the
air spring kit.
1. Install the gauge pod (gs. 3, 4 & 5). Select a convenient mounting location that has a
sturdy rigid surface. The bottom edge of the dash on either side of the steering wheel is
a good location. Attach the gauge pod to the selected location with the black self-tapping
screws.
Optional dash mounting bracket and hardware also included (g. 6).
2. Connect the harness to the gauge pod.
a. Connect the color coded wires to the gauge harness as shown in the attached
schematic.
b. Connect the low pressure switch assemblies as shown in gures 2 and 9.
c. Do not connect the power wire at this time.
d. The wiring harness also connects the gauge pod to the low pressure sensor assembly.
The low pressure sensor protects the air springs from failure resulting from low
pressure in the unloaded condition. This sensor is preset to maintain a MINIMUM
pressure of 5 PSI in the air springs unless the setting was changed in the “Getting
Started” section. The sensor measures the pressure in each spring and turns on the
compressor if the pressure falls below the set PSI.
e. Screw ground eyelet to rewall or other electrical ground in the cab.
The sensor should be located under the dash inside the vehicle and secured with the
provided tie straps.
3. Install the compressor unit.
a. Hold the compressor in the recommended location (g. 10 or 11).
b. For box frames: In some cases the frame section will not be wide enough to mount
the compressor legs at to the rail. Refer to gs. 10 and 11 in this situation.
DO NOT DRILL ANY HOLES INTO THE FRAME OR THE FLOOR BOARD BEFORE
CHECKING FOR HYDRAULIC LINES, GAS LINES, AND/OR ELECTRICAL WIRES
THAT MAY NEED TO BE MOVED ASIDE. ALSO, WHEN ATTACHING TO THE FLOOR
BOARD, IT IS IMPORTANT TO CHECK WHERE THE SCREWS PROTRUDE THROUGH
THE FLOOR BOARD. IT MAY BE NECESSARY TO TRIM OR COVER THE TOP OF THE
SCREWS INSIDE THE VEHICLE. A SEALER SHOULD BE USED AROUND THE SCREW
TO PREVENT THE ELEMENTS FROM ENTERING THE CAB AREA.
STANDARD DUTY COMPRESSOR MOUNTING (FIG. 1 - A1, 10)
In some cases the mounting area does not provide enough room to use a drill to drive in
the screws. It may be necessary to use the mounting brackets as a template to drill 13/64”
holes through the frame rst and then use a 7/16” nut driver to install the self tapping screws.
NOTE
NOTE
CAUTION
NOTE
g. 9
Compressor side
Gauge side
Black (ground)
Gray
Load Controller / Single
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