MN-745
9
CAUTION
Rubber washer
5/16” Hex nut
Air line
Vehicle body or
bumper
5/16” Flat
washer
5/16” Hex nut
Valve cap
Star washer
WHEN CUTTING OR TRIMMING THE AIR LINE, USE A HOSE CUTTER, A RAZOR BLADE,
OR A SHARP KNIFE. A CLEAN, SqUARE CUT WILL ENSURE AGAINST LEAKS. DO
NOT USE WIRE CUTTERS OR SCISSORS TO CUT THE AIR LINE. THESE TOOLS MAY
FLATTEN OR CRIMP THE AIR LINE CAUSING IT TO LEAK AROUND THE O-RING SEAL
INSIDE THE ELBOW FITTING (FIG. 10).
4. Place a 5/16” nut and star washer on the air valve. Leave enough of the inflation valve
in front of the nut to extend through the hole and have room for the rubber washer, flat
washer, and 5/16” nut and cap. There should be enough valve exposed after installation—
approximately ½”— to easily apply a pressure gauge or an air chuck (fig. 11).
5. Push the inflation valve through the hole and use the rubber washer, flat washer, and
another 5/16” nut to secure it in place. Tighten the nuts to secure the assembly.
6. Route the air line along the frame to the air fitting on the air spring (fig. 12). Keep AT
LEAST 6” of clearance between the air line and heat sources, such as the exhaust pipes,
muffler, or catalytic converter. Avoid sharp bends and edges. Use the plastic tie straps
to secure the air line to fixed, non-moving points along the chassis. Be sure that the tie
straps are tight, but do not pinch the air line. Leave at least 2” of slack to allow for any
movement that might pull on the air line (fig. 12).
7. Cut off the air line, leaving approximately 12” of extra air line. A clean square cut will
ensure against leaks. Insert the air line into the air fitting. This is a push-to-connect
fitting. Simply push the air line into the 90° swivel fitting until it bottoms out (9/16” of air
line should be in the fitting).
8. Install the minimum/maximum air pressure decal in a highly visible location. We suggest
placing the decal on the driver-side window, just above the door handle.
Option 1
Option 2
fig. 11
fig. 12
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