13
MN-831
LoadLifter 5000 Ultimate
Overnight leak down test — Recheck air pressure after the vehicle has been used for
24 hours. If the pressure has dropped more than 5 PSI, then there is a leak that must
be fixed. Either fix the leak yourself or return to the installer for service.
Air pressure requirements — Regardless of load, the air pressure should always be
adjusted to maintain ride height at all times.
Thirty day or 500 mile test —Recheck the air spring system after 30 days or 500 miles,
whichever comes first. If any part shows signs of rubbing or abrasion, the source should be
identified and moved, if possible. If it is not possible to relocate the cause of the abrasion,
the air spring may need to be remounted. If professionally installed, the installer should
be consulted. Check all fasteners for tightness.
POST-INSTALLATION CHECKLIST
Clearance test — Inflate the air springs to 60 PSI and ensure there is at least ½” clearance
around each bellow, away from anything that might rub against them. Be sure to check
the tire, brake drum, frame, shock absorbers and brake cables.
Leak test before road test — Inflate the air springs to 60 PSI, check all connections for
leaks with a soapy water solution. See page 12 for tips on how to spot leaks. All leaks
must be eliminated before the vehicle is road tested.
Heat test — Be sure there is sufficient clearance from any heat sources — at least 6”
for air springs and air lines. If a heat shield was included in the kit, install it. If there is no
heat shield, but one is required, call (800) 248-0892.
Fastener test — Recheck all bolts for proper torque. Axle clamp bar carriage bolt lock
nuts should be torqued to 16 ft/lbs. Re-torque after 100 miles.
Road test — The vehicle should be road tested after the preceding tests. Inflate the air
springs to 25 PSI (50 PSI if the vehicle is loaded). Drive the vehicle 10 miles and recheck
for clearance, loose fasteners and air leaks.
Operating instructions — If professionally installed, the installer should review the Product
Use, Maintenance and Servicing section on page 14 with the owner. Be sure to provide
the owner with all of the paperwork which came with the kit.
Technician’s Signature ________________________
Date ______________
Before Operating
INSTALLATION CHECKLIST
(To be completed by installer)
b. Check the air line connection by removing the air line from the barbed type fitting.
DO NOT CUT IT OFF. AS THIS WILL USUALLY NICK THE BARB AND RENDER THE
FITTING USELESS. CUT AIR LINE OFF A FEW INCHES IN FRONT OF THE FITTING
AND USE A PAIR OF PLIERS OR VISE-GRIPS TO PULL/TWIST THE AIR LINE OFF
THE FITTING.
3. If the preceding steps have not resolved the problem, call Air Lift Technical Service at
1-800-248-0892 for assistance.
CAUTION
