11
MN-870
Air Lift Performance
MAINTENANCE GUIDELINES
By following these steps, vehicle owners will obtain the longest life and best results from their
air spring.
1. Check the air pressure before driving.
2. Never inflate beyond 125 PSI.
3. If you develop an air leak in the system, use a soapy water solution to check all air line
connections, before deflating and removing the spring.
4. When increasing load, always adjust the air pressure to maintain normal ride height.
Increase or decrease pressure from the system as necessary to attain normal ride height
for optimal ride and handling. Remember that loads carried behind the axle (including
tongue loads) require more leveling force (pressure) than those carried directly over the
axle.
FOR YOUR SAFETY AND TO PREVENT DAMAGE TO YOUR VEHICLE, DO NOT EXCEED
MAXIMUM GROSS VEHICLE WEIGHT RATING (GVWR), AS INDICATED BY THE VEHICLE
MANUFACTURER. ALTHOUGH YOUR AIR SPRINGS ARE RATED AT A MAXIMUM
INFLATION PRESSURE OF 125 PSI, THE AIR PRESSURE ACTUALLY NEEDED IS
DEPENDENT ON YOUR LOAD.
5. Always add air to the springs in small quantities, checking the pressure frequently. Sleeves
require less air volume than a tire and inflate quickly.
6. Should it become necessary to raise the vehicle by the frame, make sure the control system
is turned off before lifting.
NOTE
Troubleshooting Guide
1. Leak test the air line connections, the threaded connection into the air spring, and all fittings
in the control system.
2. Inspect the air lines to be sure none are pinched. Tie straps may be too tight. Loosen or
replace the strap and replace leaking components.
3. Inspect the air line for holes and cracks. Replace as needed.
4. Look for a kink or fold in the air line. Reroute as needed.
If the preceding steps do not solve the problem, it is possibly caused by a failed air spring — either
a factory defect or an operating problem. Please call Air Lift at (800) 248-0892 for assistance.
Product Use, Maintenance and Servicing
45 PSI
125 PSI
FAILURE TO MAINTAIN ADEQUATE MINIMUM PRESSURE (OR PRESSURE
PROPORTIONAL TO LOAD) WILL RESULT IN BOTTOMING OUT, OVER-EXTENSION
OR RUBBING AGAINST ANOTHER COMPONENT AND WILL
VOID THE WARRANTY
.
Maximum Air Pressure
Suggested Driving Air Pressure
Frequently Asked Questions
Q . Will installing air springs increase the weight ratings of a vehicle?
No. Adding air springs will not change the weight ratings (GAWR, GCWR and/or GVWR)
of a vehicle. Exceeding the GVWR is dangerous and voids the Air Lift warranty.
Q . How long should air springs last?
If the air springs are properly installed and maintained they can last indefinitely.
CAUTION
