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13

MN-387

LoadLifter 5000

Product Use

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.

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. 22). Raise the air pressure to correct either of these problems 

and level the vehicle.

2.  Ride comfort

 

If the vehicle has a rough and harsh ride it may be due to either too much pressure or 

not enough (fig. 23). 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. 24). Tuning out these problems usually 

requires an increase in pressure.

fig. 22

fig. 23

Bad headlight aim

Rough ride

Sway and body roll

fig. 24

Содержание loadlifter 5000

Страница 1: ...ss and safety please read these instructions completely before proceeding with installation Failure to read these instructions can result in an incorrect installation MN 387 31210 ECR 7433 INSTALLATIO...

Страница 2: ...oning the Brackets 7 Attaching the Lower Bracket 7 Attaching the Upper Bracket 8 Securing the Air Spring to the Brackets 9 Installing the Air Lines 9 Reinstalling the Fenderwell Liner Late Model 4WD D...

Страница 3: ...this kit does not alter the Gross Vehicle Weight Rating GVWR or payload of the vehicle Check your vehicle s owner s manual and do not exceed the maximum load listed for your vehicle Gross Vehicle Weig...

Страница 4: ...3 MN 387 LoadLifter 5000 Installation Diagram A M I J N B L H F or G I H C I J N D E OUTBOARD FORWARD fig 1 Z V Y X W Z T...

Страница 5: ...fig 2 Item Part Description Qty A1 58437 Bellows 57215 2 A2 58491 Bellows 57207 2 B 07475 Upper bracket 2 C 03102 Lower bracket 2 D 11951 Roll plate 4 E 33606 Elbow fitting 2 F 10594 2 U bolt 4 G 1058...

Страница 6: ...pper bracket on an F 250 or F 350 the mounting bolt holes can line up directly over the indent in the frame This is an acceptable situation and is an approved method of installation for the product fi...

Страница 7: ...ith the legs facing down 4 Set the air spring on the lower bracket aligning the two holes in the base of the air spring with the two outer slots in the top of the lower bracket 5 Loosely attach the up...

Страница 8: ...above the lower radius edge of the frame rail it may be necessary to move up the spacers under the lower bracket to achieve mounting height If you find that the lower bracket needs to set flat onto th...

Страница 9: ...d frame bolt oversized flat washer and lock nut fig 11 For Dodge trucks only The top two or the bottom two holes depending on the model of the truck will fall into a horizontal indentation Spacers are...

Страница 10: ...ween the upper and lower brackets and check the air spring alignment fig 13 INSTALLING THE AIR LINES WHEN INSTALLING THE AIR LINES THERE MUST BE AT LEAST SIX INCHES OF CLEARANCE BETWEEN THE AIR LINES...

Страница 11: ...er Avoid sharp bends and edges Leave at least 2 of slack when securing the air lines to allow for any movement that might pull on the air line fig 18 7 Cut off air line leaving approximately 12 of ext...

Страница 12: ...ate the air spring to 30 PSI 2 Spray all connections and the inflation valves with a solution of 1 5 liquid dish soap and 4 5 water to check for leaks You should be able to spot leaks easily by lookin...

Страница 13: ...on instructions furnished with all products The consumer will be responsible for removing labor charges the defective product from the vehicle and returning it transportation costs prepaid to the deal...

Страница 14: ...ist 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 p...

Страница 15: ...assistance contact our customer service department by calling 800 248 0892 Monday through Friday 8 a m to 5 p m Eastern Time For calls from outside the USA or Canada our local number is 517 322 2144...

Страница 16: ...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 through Friday 8 a m...

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