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12

MN-822

LoadLifter 5000 Ultimate

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 GVWR 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?

 

For LoadLifter 5000 Ultimate, the recommended minimum air pressure is 5 PSI, but it 
can safely be run at zero air pressure .

Q .  Is it necessary to add a compressor system to the air springs?

 

No . Air pressure can be adjusted with any type of compressor as long as it can produce 

sufficient pressure to service the springs. Even a bicycle tire pump can be used, but it’s 

a lot of work . 

Q .  How long should air springs last?

  If the air springs are properly installed and maintained they can last indefinitely. 

Q .  Will raising the vehicle on a hoist for service work damage the air springs?

 

No . The vehicle can be lifted on a hoist for short-term service work such as tire rotation 
or oil changes . However, if the vehicle will be on the hoist for a prolonged period of time, 
support the axle with jack stands in order to take the tension off of the air springs .

TUNING THE AIR PRESSURE

Pressure determination comes down to three things — level vehicle, ride comfort, and 
stability .

1 .  Level vehicle

 

If the vehicle’s headlights are shining into the trees or the vehicle is leaning to one side, 

then it is not level (fig. 2.1). Raise the air pressure to correct either of these problems 

and level the vehicle .

2 .  Ride comfort

 

If the vehicle has a rough or harsh ride it may be due to either too much pressure or not 

enough (fig. 2.2). Try different pressures to determine the best ride comfort. 

3 . Stability

 

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. 2.3). Tuning out these problems usually 

requires an increase in pressure .

fig. 2.1

Bad headlight aim

Sway and 

body roll

fig. 2.3

Rough ride

fig. 2.2

Содержание 88295

Страница 1: ...ons completely before proceeding with installation Failure to read these instructions can result in an incorrect installation MN 822 031309 ECR 7785 INSTALLATION GUIDE ADJUSTABLE AIR HELPER SPRINGS TO...

Страница 2: ...2 MN 822 LoadLifter 5000 Ultimate...

Страница 3: ...Attaching the Lower Bracket 7 Installing the Heat Shield 7 Installing the Air Lines 8 Checking For Leaks 9 Fixing Leaks 9 Before Operating 10 Installation Checklist 10 Post Installation Checklist 10 P...

Страница 4: ...ontact Air Lift Company at 800 248 0892 or visit our website at www airliftcompany com IMPORTANT SAFETY NOTICE The installation of this kit does not alter the Gross Vehicle Weight Rating GVWR or paylo...

Страница 5: ...Axle strap 4 N 17277 3 8 16 x 3 Carriage bolt 8 O 17365 3 8 24 x 7 8 Button head screw 4 P 17366 M10 1 50 x 35 Button head screw 4 Q 17361 3 8 16 x 1 25 Carriage bolt 4 AA 20086 Air line assembly 1 BB...

Страница 6: ...a rear brake proportioning valve or is equipped with an anti lock type brake system installation of a load assist product will have NO EFFECT on brake system performance COMPRESSED AIR CAN CAUSE INJUR...

Страница 7: ...ad screws O Tighten securely fig 4 4 Insert the carriage bolts through the holes in the lower bracket C fig 4 5 Place the lower bracket on the air spring in an offset position fig 4 The bellows assemb...

Страница 8: ...sis to gain clearance to set the assembly into position 2 Align the slots in the frame upper bracket and bellow upper bracket Attach the two with the 3 8 carriage bolts Q flat washer I and nyloc nut H...

Страница 9: ...arance 2 Tighten the lock nuts evenly to 16 ft lbs Re torque after 100 miles 3 Repeat for the opposite side INSTALLING THE HEAT SHIELD 1 Bend the tabs on the heat shield G to provide a of space betwee...

Страница 10: ...NOT USE WIRE CUTTERS OR SCISSORS TO CUT THE AIR LINE THESE TOOLS MAY FLATTEN OR CRIMP THE AIR LINE CAUSING IT TO LEAK AROUND THE O RING SEAL INSIDE THE ELBOW FITTING FIG 10 fig 10 CAUTION 4 Place a 5...

Страница 11: ...the minimum pressure required to restore the system to normal ride height Do not deflate to lower than 10 PSI 4 Check the air pressure again after 24 hours A 2 4 PSI loss after initial installation is...

Страница 12: ...rame 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...

Страница 13: ...minimum air spring pressure will void the Air Lift warranty 5 When increasing load always adjust the air pressure to maintain the normal ride height Increase or decrease pressure from the system as n...

Страница 14: ...last indefinitely Q Will raising the vehicle on a hoist for service work damage the air springs No The vehicle can be lifted on a hoist for short term service work such as tire rotation or oil change...

Страница 15: ...ed that the air bags have bottomed out increase the pressure fig 2 4 5 Adjust the pressure up and down to find the best ride 6 If the vehicle rocks and rolls adjust the air pressure to reduce movement...

Страница 16: ...ressor will work well for most customers who use their system on an intermittent basis Heavy duty For daily use consider the heavy duty compressor it inflates faster and more quietly than the standard...

Страница 17: ...Company for verification Air Lift will repair or replace at its option defective products or components A minimum 10 00 shipping and handling charge will apply to all warranty claims Before returning...

Страница 18: ...tailer where the kit was purchased If it is necessary to return or exchange the kit for any reason If there is a problem with shipping if shipped from the retailer If there is a problem with the price...

Страница 19: ...17 MN 822 LoadLifter 5000 Ultimate A B A B C C Lower bracket mounting template See Assembling the Air Spring pg 5...

Страница 20: ...irliftcompany com Thank you for purchasing Air Lift products the professional installer s choice Printed in the USA Need Help Contact our customer service department by calling 800 248 0892 Monday thr...

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