Air Lift Ride Control 59544 User manual

Technical Support
1-800-248-0892
Ext. 2
1
MN-612
(05606)
ECR 5714
by
P/N 59544
Please read these instructions completely before proceeding with the installation.
Figure 1
NOTE: Unbolt the lower bracket from the leaf spring if the vehicle
is to be serviced by a frame contact hoist. Not for off-road use.
Air Line
Driver-Side
Upper Frame
Bracket
Air Sleeve
Lower
Bracket
OUTBOARD FORWARD
Note:
3/8" U-Bolt
Flat Washer
3/8"-16 Lock Nut
M10-1.25 or M10-1.50 Bolt
M10 Lock
Washer
1/2" Flat Washers
1/2" HHCS Bolt
Part Number
Lock Washer
1/4 Push-In
Elbow
Nylon Mounting Nut
Lower Bracket must
be installed with the
center slot offset to the
outside of the vehicle.
3/8" Serrated
Flange Nut
Driver Side Shown
The jounce bumper
attaches the bracket
to the frame.
Note:
Torque nut to no
more than 10 ftlbs.
evenly on both sides.
Stock
Jounce
Bumper
J Bolt
Note:
Frame
(L)

Technical Support
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IMPORTANT: Your vehicle may be equipped with a rear brake
proportioning valve. Any type of load assist suspension product could effect brake performance. We recommend that you
check with your dealer before installing this type of product. If your vehicle does not have a proportioning valve or is equipped
with an anti-lock brake system, no adjustment or modification is required.
1. Remove the stock jounce bumper from under the frame (Figure 1).
2. Insert the J-bolts through the upper bracket with the curved part facing inboard. Attach two serrated flange nuts to the ends
of the j-bolts.
3. Attach the lower portion of the upper bracket to the frame using the stock jounce bumper. Secure in place with the supplied
M10-1.25 or M10-1.50 bolt and M10 lock washer.
NOTE: The upper brackets are left- and right-side specific. You can find an L and a R designation on the brackets.
4. Insert the curved part of the J-bolts into the existing slots in the frame. Be sure the J-bolts lock onto the frame securely
(Figure 2). Tighten all hardware at this time.
NOTE: Torque bolts to no more than 10 ftlbs. evenly on both sides.
5. Cut the forward bolt flush to the nut.
6. Install the elbow fitting into the air port of the air sleeve. The fitting is precoated with thread sealant. Tighten finger tight plus
two turns. Use a 7/16” open end wrench being careful to tighten on the metal hex nut only.
CAUTION: Do not overtighten.
7. Attach the lower air spring to the lower bracket with the 1/2” flat washer and lower mounting bolt. Leave loose for later
adjustment.
Figure 2
Frame is cut away
to show detail.
Upper
Bracket
Existing Slots
in Frame
J-bolts attach the bracket to
the frame. Make sure the J-bolt
heads are securely planted
(turned away from the open slots)
behind the frame.
The jounce bumper attaches
through the bottom of the bracket
to secure the bracket to the frame.

Technical Support
1-800-248-0892
Ext. 2
3
Figure 3
Figure 4
Option 1
Option 2
Fig.8 MNFig.8 MN 190
Air Line to
Bellows
Star
Washer
Vehicle body
or bumper
Rubber Washer
Flat Washer
8. Set the lower bracket on the leaf spring above the axle and attach using
the supplied U-bolts, flat washers, and nyloc nuts (Figure 1). Tighten
securely. Make sure the slot is offset to the outside of the vehicle (Figure 1).
9. Guide the threaded post of the air fitting thought the slot in the upper
bracket.
10. Install the nylon nut and lock washer onto the upper threaded post of
the air spring. Leave loose for final adjustment (Figure 1).
11. Repeat steps 1-9 for the other side of the vehicle.
12. Select location on the vehicle for the air inflation valves (Figure 3).
The location can be on the bumper or on the body of the vehicle, but be
sure that it is protected so that the valve will not be damaged and will
still be accessible for the air chuck.
13. Use a standard tube cutter, a razor blade, or very sharp knife to cut
the air line in two equal parts. A clean square cut will ensure against
leaks. Drill a 5/16" hole and install the air inflation valve (Figure 4). Run
the air line from inflation valve to the air springs. Route the air line so
that it will be protected from the direct heat from the muffler or tail pipe
and kept away from sharp edges. The air line should not bent or curved
sharply. Secure the air line in place with nylon ties provided.
14. Cut off excess air line. Insert into air fitting in the top of the air spring.
Push the air line into the fitting as far as it will go ( 9/16"). You should
feel a definite “click”. This is a self-locking fitting and the air line is now
installed.
15. VERY IMPORTANT - With the top and bottom still loose, inflate the air
springs to approximately 10 p.s.i. Use the slots in the brackets to
correctly align the air spring between the upper and lower brackets. This
can be accomplished by tapping it inboard or outboard for proper
alignment. There should be symmetrical cushion of air around the base
of the air spring when correctly positioned.
16. Inflate the air springs to 30 p.s.i. and check all fittings and
connectors for air leaks with a solution of soap and water. Check once
again to be sure you have proper clearance around the air spring.
Tighten the top nut to 4 ft.lbs. Tighten the bottom bolt. Do not
overtighten.
17. Re-check air pressure after 24 hours. An air loss of 2-4 p.s.i. is normal
after initial installation. If pressure has dropped more than 4 lbs. re-test
for leaks with a soapy/water solution. Please read and follow the
Maintenance and Operating tips. (Check to see that the sleeve rolls
back down over the bottom piston after the vehicle is lowered.)

Technical Support
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MAINTENANCE
1. Always maintain Normal Ride Height. Never inflate beyond 100 p.s.i. Always keep at least 10 p.s.i. in each air spring.
2. Check the air pressure in the springs weekly.
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 removing air spring.
Incorrect: Misaligned or under-inflated. Only OK
during installation.
Correct: Sleeve is fully inflated and also properly
aligned.
FINISHED INSTALLATION
ForTechnical Assistance call 1-800-248-0892
Thank you for purchasing Air Lift Products
Mailing Address: Street Address:
AIR LIFT COMPANY AIR LIFT COMPANY
P.O. Box 80167 2727 Snow Rd.
Lansing, MI 48908-0167 Lansing, MI 48917
Local Phone: [phone]
Fax: [phone]
Figure 7
OPERATINGTIPS
1. Always adjust the air pressure to maintain the 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.
2. IMPORTANT: For your safety and to prevent possible damage to your vehicle, do not exceed maximum load
recommended by the vehicle manufacturer. Although your air springs are rated at amaximum inflation pressure of 100
p.s.i., the air pressure actually needed is dependent on your load and GVWR, which may be less than 100 p.s.i. Check your
vehicle owner’s manual or the manufacturers specification plate usually found on the inside door jamb, and do not exceed
maximum loads listed for your vehicle.
3. Always add air to air springs in small quantities, checking pressure frequently during inflation. Air springs require less air
volume than a tire and inflate quickly.
4. Should it become necessary to raise the vehicle by the frame, make sure the system is unbolted from the leaf spring to
prevent the assembly from pulling apart. Not for off-road use. Use of on-board hydraulic leveling systems or routine tire
changes DOES NOT require deflation or disconnection.
MAXIMUM AIR PRESSURE
100 P.S.I.
MINIMUM AIR PRESSURE
5 P.S.I.
FAILURETO MAINTAIN MINIMUM PRESSURE ORTO PREVENT BOTTOMING OUT
AND/OR OVEREXTENSION WILL VOID THE WARRANTY