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V. Inflation Control
1. Your vehicle is equipped with rear air springs. The following procedure is a "guide" to assist you in leveling your
vehicle to provide the best possible ride and handling.
2. Fill the air springs to maximum recommended pressure. The pressure can be increased from the dash control or
the inflation valves located just ahead of the rear wheels. Generally, the vehicle will ride best when the rear springs
are slightly arched (if equipped with leaf springs). Start with a higher pressure and decrease in five pound increments
to determine the best ride and handling for your particular vehicle. Increases in pressure can be made to compensate
for additional load and trailers, etc. Higher pressures can be used when the vehicle is in storage to relieve the leaf
springs.
VI. Operating Instructions
1. IMPORTANT: Do not exceed the recommended duty cycle of 15% (3 minutes on and 20 minutes off). Not complying
with the recommended duty cycle may cause premature failure of the compressor.
2. The air springs should be inflated to the specified air pressure as discussed in the air spring inflation procedure.
3. When ever load and weight distribution change, simply adjust the pressure in the air springs to maintain a level
vehicle. The air pressure is manually controlled by the control panel located on the dash.
4. To inflate the air springs and raise the vehicle, depress the switch on the control panel. The compressor will turn on
automatically to increase the pressure as indicated on the gauge. Once the desired pressure is reached, release the
switch and the compressor will shut-off.
5. To deflate the air springs, depress the button below the on/off switch (Figure 6).
VII. Troubleshooting
1. In the event that the compressor stops running, allow the compressor to cool down before running again and provide
adequate time for the thermal breaker to reset before trying to start the compressor again.
2. Check the inflation pressure weekly, air spring bellows will permeate (loss of pressure through the rubber wall) at the
approximate rate of 3–4 p.s.i. per week. Leakage at a higher rate indicates a leak. In order to find a possible leak,
inflate the system to the maximum recommended pressure and spray all fittings with soapy water solution.
a. Check the inflation valve, including the valve core and air line connections.
b. Check the elbow fitting where threaded into the bellows (all threaded connections must have pipe sealant
applied) and the air line connection.
CAUTION: Do not exceed the recommended duty cycle of 15% (3 minutes on, 20 minutes off). Not
complying with the recommended duty cycle may cause premature failure of the compressor.
CAUTION: Do not exceed the vehicle manufacturers maximum gross vehicle weight rating (GVWR).
For Technical Assistance call 1-800-248-0892
"The Choice of the Professional Installer"
4
Thank you for purchasing Air Lift Products
Mailing Address:
AIR LIFT COMPANY
P.O. Box 80167
Lansing, MI 48908-0167
Local Phone: (517) 322-2144
Technical Support
1-800-248-0892
Ext. 2
Street Address:
AIR LIFT COMPANY
2727 Snow Rd.
Lansing, MI 48917
Fax: (517) 322-0240
Printed in the USA
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