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ARNOTT REAR AIR SPRING
FOR 2003-2006
LINCOLN NAVIGATOR/FORD EXPEDITION
Congratulations on your purchase of an Arnott® air suspension product. We at Arnott Incorporated are proud
to offer a high quality product at the industry’s most competitive pricing. Thank you for your condence in us
and our product.
Proper installation is essential to experience and appreciate the benets of this system. Please take a moment
to review these installation instructions before you begin to install these components on your vehicle. The
removal and installation of air suspension products should only be performed by a fully qualied, ASE
Certied, professional.
It is equally important to be aware of all necessary safety measures while installing your new Air Suspension
System. This includes proper lifting and immobilizing of the vehicle and isolation of any stored energy to
prevent personal injury or property damage.
"Engineered to Ride, Built to Last™"
WARNING:
and disconnect power to the air suspension system prior to disassembly. Do not allow dirt or grease to enter the system.
Always wear standard protective hand, ear, and eye protection when servicing the air suspension system.
The air suspension system is under pressure (up to 10 bar, or 150 lbf/in). Verify pressure has been relieved
KIT CONTAINS:
PARTS LIST
P/N QTY DESCRIPTION
21-7086 1 ARNOTT REAR AIR SPRING
21-7087 1 ACCESSORY KIT
Arnott® is committed to the quality of its products. If you have a question or problem with any Arnott product,
please contact Arnott by calling 800-251-8993 during normal business hours or email techassistance@arnottinc.com
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ARNOTT REAR AIR SPRING
FOR 2003-2006
LINCOLN NAVIGATOR/FORD EXPEDITION
GENERAL INFORMATION:
Reading this manual signies your agreement to the terms of the general release, waiver of liability, and hold harmless agreement,
the full text of which is available at www.arnottinc.com.
• Not to be stored below 5oF (-15oC) and above 122oF (50oC).
• Avoid damage to air lines and cables.
• Removal and installation is only to be performed by fully qualied personnel.
• Use car manufacturer’s diagnostic software.
CAUTION:
in the instructions or in a different sequence.
Damage to the vehicle and air suspension system can be incurred if work is carried out in a manner other than specied
To avoid the possibility of short circuits while working with electric components consult your owner's manual on how to
disconnect your battery.
Consult your vehicle owner's manual, service manual, or car dealer for the correct jacking points on your vehicle and for
additional care, safety and maintenance instructions. Under no circumstances should any work be completed underneath
the vehicle if it is not adequately supported, as serious injuries and death can occur.
AIR STRUT REMOVAL
1. SET THE STEERING TO STRAIGHT AHEAD.
2. RAISE THE VEHICLE.
3. REMOVE THE REAR WHEEL. (FIGURE 10-1)
FIGURE 10-1
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ARNOTT REAR AIR SPRING
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LINCOLN NAVIGATOR/FORD EXPEDITION
4. UNPLUG THE ELECTRICAL CONNECTOR FROM THE AIR SPRING’S SOLENOID. (FIGURE 10-2)
FIGURE 10-2
5. REMOVE THE AIR LINE FROM THE AIR SPRING’S SOLENOID. PUSH THE COLLAR IN TO RELEASE AND PULL
THE AIR LINE OUT. (FIGURE 10-3)
FIGURE 10-3
6. LOOSEN AND REMOVE THE TOP THREE (3) MOUNTING NUTS AND THE BOTTOM MOUNTING NUT/BOLT. (FIGURE 10-4)
FIGURE 10-4
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ARNOTT REAR AIR SPRING
FOR 2003-2006
LINCOLN NAVIGATOR/FORD EXPEDITION
7. REMOVE THE AIR STRUT FROM VEHICLE. (FIGURE 10-5)
FIGURE 10-5
8. REMOVAL COMPLETE.
AIR SPRING REMOVAL
Note the alignment of the air spring and shock before disassembling.
NOTE:
1. ROTATE THE AIR STRUT’S SOLENOID COUNTERCLOCKWISE TO THE FIRST STOP, THEN CAREFULLY PULL
OUT TO DEPRESSURIZE THE AIR SPRING.
2. LOOSEN THE ROD END NUT AND REMOVE.
3. TURN THE ASSEMBLY UPSIDE DOWN AND USING A FLAT HEAD SCREWDRIVER DEPRESS THE
SECURING TABS TO DISLODGE THE PISTON FROM ITS POSITION.
4. REMOVE THE SHOCK FROM THE AIR SPRING ASSEMBLY.
5. PULL THE RETAINER PINS HOLDING THE UPPER MOUNT TO THE AIR SPRING TOP AND PRY THE MOUNT
OFF. IF A NEW MOUNT WAS PURCHASED YOU MAY DISREGARD THIS STEP.
REFER TO THE DIAGRAM ON PAGE 6 FOR AIR SPRING REMOVAL.
AIR SPRING INSTALLATION
Tighten all nuts and bolts to manufacturer's specications during the installation process.
NOTE:
1. CLEAN THE REUSED PARTS AND APPLY THE NEW O-RINGS AND LUBRICANT.
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REFER TO THE DIAGRAM ON PAGE 6 FOR AIR SPRING INSTALLATION.
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ARNOTT REAR AIR SPRING
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LINCOLN NAVIGATOR/FORD EXPEDITION
2. INSTALL THE NEW AIR SPRING ONTO THE SHOCK ABSORBER.
3. INSTALL EITHER THE REUSED OR NEW TOP MOUNT ONTO THE AIR SPRING AND FIRMLY SEAT THEM
TOGETHER.
4. SECURE THE ROD END NUT AND THE RETAINER PINS INTO PLACE ON THE UPPER MOUNT.
AIR STRUT INSTALLATION
Tighten all nuts and bolts to manufacturer's specications during the installation process.
1. INSTALLATION IS IN REVERSE ORDER OF AIR STRUT REMOVAL.
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LINCOLN NAVIGATOR/FORD EXPEDITION
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