
7. Co plete passenger and driver’s side installation of air spring asse bly.
8. Select a location for the air inflation valves. The location can be on the
bu per or body of the vehicle where an air chuck can be used to inflate the air
springs. Select a location where the valve will not be da aged or interfere
with the operation of other co ponents.
9. Cut air brake lines to length and connect air lines to fittings by pushing the air
line into the air fittings as far as possible. WHEN CUTTING AIR BRAKE
TUBING, A SQUARE CUT IS REQUIRED AND THE HOSE END
UST NOT BE DEFOR ED OR LEAKAGE AY RESULT. IF DE-
FOR ATION OF THE HOSE END OCCURS, THE HOSE END UST
BE REWORKED SO THAT IT IS ROUND. Engage ent of the sealing O
-ring will be felt when the air line has been inserted properly into the fitting.
Fittings ay be disconnected if required by pushing down on the outer ring
while pulling fir ly on the air line. Route air lines away fro exhaust pipes
or any other sources of heat and ensure that the air lines are protected fro
sharp edges. A length of heat shielding is provided to protect the air line as it
exits the passenger side air spring.
10. Inflate air springs to 40 psi and check for leaks. A soapy water solution can be
used to find slow leaks.
11. When satisfied with integrity of the syste , adjust air pressure to desired level.
The air springs can be inflated to any level between 10 and 100 psi. DO NOT
run the air springs e pty or warranty will be void. MINIMUM air spring pres-
sure is 10 psi. Failure to keep air in the air springs will void the warranty. For
best RIDE use only enough air pressure as required to level the vehicle. If a
fir er ride is desired, ore pressure can be used.
12. Check air pressure in the syste regularly to ensure syste perfor ance and
aintenance of warranty. Just like tires, the air pressure in the syste will
vary due to te perature changes. For your air spring syste to function prop-
erly it ust be checked on a regular basis.
SUSPENSION SYSTEMS
HELLWIG SUSPENSION