Air Lift 57212, Installation Manual

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11 MN-651
LoadLifter 5000
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 weekly.
2. Always maintain normal ride height. Never inflate beyond 100 PSI.
3. If you develop an air leak in the system, use a soapy water solution to check all air line
connections and the inflation valve core, 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 100 PSI, THE AIR PRESSURE ACTUALLY NEEDED IS
DEPENDENT ON YOUR LOAD AND GVWR.
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 system is
at a minimum pressure (5 PSI) to reduce tension on the suspension/brake components.
Use of on-board leveling systems do not require deflation or disconnection.
Stability translates into safety and should be the priority, meaning the driver may need
to sacrifice a perfectly level and comfortable ride. Stability issues include roll control,
bounce, dive during braking and sponginess (fig. 17). Tuning out these problems usually
requires an increase in pressure.
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.
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 GWVR is dangerous and voids the Air Lift warranty.
Q. Is it necessary to keep air in the air springs at all times and how much pressure
will they need?
The minimum air pressure should be maintained at all times. The minimum air pressure
keeps the air spring in shape, ensuring that it will move throughout its travel without
rubbing or wearing on itself.
NOTE
CAUTION