Technical Support
1-800-248-0892
Ext. 2
3
Figure 3
Figure 4
Option 1
Option 2
Fig.8 MN
Fig.8 MN 190
Air Line to
Bellows
Star
Washer
Vehicle body
or bumper
Rubber Washer
Flat Washer
8. Set the lower bracket on the leaf spring above the axle and attach using
the supplied U-bolts, flat washers, and nyloc nuts (Figure 1). Tighten
securely. Make sure the slot is offset to the outside of the vehicle (Figure 1).
9. Guide the threaded post of the air fitting thought the slot in the upper
bracket.
10. Install the nylon nut and lock washer onto the upper threaded post of
the air spring. Leave loose for final adjustment (Figure 1).
11. Repeat steps 1-9 for the other side of the vehicle.
12. Select location on the vehicle for the air inflation valves (Figure 3).
The location can be on the bumper or on the body of the vehicle, but be
sure that it is protected so that the valve will not be damaged and will
still be accessible for the air chuck.
13. Use a standard tube cutter, a razor blade, or very sharp knife to cut
the air line in two equal parts. A clean square cut will ensure against
leaks. Drill a 5/16" hole and install the air inflation valve (Figure 4). Run
the air line from inflation valve to the air springs. Route the air line so
that it will be protected from the direct heat from the muffler or tail pipe
and kept away from sharp edges. The air line should not bent or curved
sharply. Secure the air line in place with nylon ties provided.
14. Cut off excess air line. Insert into air fitting in the top of the air spring.
Push the air line into the fitting as far as it will go ( 9/16"). You should
feel a definite “click”. This is a self-locking fitting and the air line is now
installed.
15.
VERY IMPORTANT -
With the top and bottom still loose, inflate the air
springs to approximately 10 p.s.i. Use the slots in the brackets to
correctly align the air spring between the upper and lower brackets. This
can be accomplished by tapping it inboard or outboard for proper
alignment. There should be symmetrical cushion of air around the base
of the air spring when correctly positioned.
16. Inflate the air springs to 30 p.s.i. and check all fittings and
connectors for air leaks with a solution of soap and water. Check once
again to be sure you have proper clearance around the air spring.
Tighten the top nut to 4 ft.lbs. Tighten the bottom bolt.
Do not
overtighten.
17. Re-check air pressure after 24 hours. An air loss of 2-4 p.s.i. is normal
after
initial installation. If pressure has dropped more than 4 lbs. re-test
for leaks with a soapy/water solution. Please read and follow the
Maintenance and Operating tips.
(Check to see that the sleeve rolls
back down over the bottom piston after the vehicle is lowered.)
