Hellwig Air 6091 User Manual

559-734-7451 800-367-5480 FAX [phone]

INSTALLATION INSTRUCTIONS

6091Air Suspension Kit (pat. pending)

1999-2006 Tahoe, Suburban, Avalanche, Yukon

Thank you for purchasing a quality Hellwig Product.

PLEASE READ THIS INSTRUCTION SHEET COMPLETELYBEFORE STARTING

YOUR INSTALLATION

IMPORTANT NOTES

IF EQUIPPED WITH FACTORY PREMIUM RIDE OR
AUTOLEVELSUSPENSION, CONTACT HELLWIG
PRODUCTS CO. FOR FURTHER INSTRUCTIONS.

DO NOT INFLATE ANYAIR SPRINGASSEMBLY UNLESS IT HAS BEEN

PROPERLY INSTALLED ON VEHICLE.

DO NOT INFLATE AIR SPRINGS OVER 100 PSI

CHECK AIR PRESSURE IN THE SYSTEM DAILY TO ENSURE
SYSTEM PERFORMANCE AND MAINTENANCE OF
WARRANTY.

AMINIMUM OF 25 PSI MUST BE MAINTAINED INAIR SPRINGS
AFTER INSTALLATION FOR WARRANTYTO BE VALID. FAILURE TO
KEEPMINIMUM PRESSURE INAIR SPRINGS WILLVOID WARRANTY.

THIS UNIT IS DESIGNED TO INCREASE THE LEVEL LOAD CARRYING
CAPACITY OF YOUR VEHICLE. NEVER LOAD THE VEHICLE THIS
UNIT IS INSTALLED ON BEYOND THE MANUFACTURER’S MAXIMUM
GROSS VEHICLE WEIGHT RATING.

OVERINFLATIONAND IMPROPER USE MAY RESULT IN PERSONAL
INJURYAND/OR DAMAGE TO YOUR VEHICLEAND PROPERTY.

559-734-7451 800-367-5480 FAX [phone]

BEFORE STARTINGYOUR PROJECT

WHEN LIFTING A VEHICLE WITH A JACK, BE SURE TO SET THE PARKING BRAKE AND USE SAFETY STANDS.
ENSURE THAT THE INSTALLATION OF COMPONENTS WILL NOT CRUSH OR DAMAGE FUEL AND BRAKE

LINES OR ELECTRICAL HARNESSES.
BEFORE DRILLING ANYHOLES, ENSURE THAT ALL ELECTRICAL WIRES, FUELLINES, BRAKE LINES, BRAKE

HOSES AND ANY OTHER COMPONENTS ARE MOVED OR PROTECTED TO AVOID DAMAGE FROM DRILLING
ANY HOLES .

DO NOT ATTEMPT ANY MODIFICATIONS TO THE VEHICLE OTHER THAN THOSE OUTLINED IN THIS
INSTRUCTION SHEET. IF ANY INTERFERENCE WITH THEGAS TANK, FUEL LINES, BRAKE LINES, EXHAUST
PIPE, ETC. EXISTS, STOP YOUR INSTALLATIONAND CALL HELLWIG PRODUCTS FOR TECHNICAL HELP.

IF WHEELS ARE REMOVED FOR INSTALLATIONOF KIT, CHECK MANUFACTURERS SPECIFICATIONS FOR
PROPER LUG NUT TORQUE BEFORE REINSTALLING WHEELS.

WHEN CUTTING AIRBRAKE TUBING, A SQUARE CUT IS REQUIRED AND THE HOSE END MUST NOT BE
DEFORMED OR LEAKAGEMAY RESULT. IF DEFORMATION OF THE HOSE END OCCURS, THE HOSE END
MUST BE REWORKED SO THAT IT IS ROUND.

ENGAGEMENTOF THE SEALING O-RING WILL BE FELT WHEN THE AIR LINE HAS BEEN INSERTED
PROPERLY INTO THE FITTING. FITTINGS MAY BE DISCONNECTED IF REQUIREDBY PUSHING DOWN ON THE
OUTER RING WHILE PULLING FIRMLY ON THE AIR LINE.

ROUTE AIRLINES AWAY FROM EXHAUST PIPES OR ANY OTHER SOURCESOF HEAT AND ENSURE THAT THE
AIR LINES ARE PROTECTED FROM SHARP EDGES.

6091 ( R-6091) 03/09/07

Measure this
distance

1. Prepare vehicle for installation by chocking front tires and setting emergency
brake. Before starting installation, measure the distance from the top of rear
wheel to fender lip as shown. This is the original ride height of the vehicle.
Write this measurement down as this will be used to set the height of the air
springs later in the installation.

2. For ease of installation, posi­tion the rear wheels on automo­tive ramps. Ensure vehicle is
secure and disconnect shock
absorbers from rear axle. Raise

Remove insulators
from frame and axle

vehicle frame until coil springs
are unloaded. Support frame
with jack stands and remove
coil springs and insulators from
vehicle. Do not remove bump
stops from frame.

6091 ( R-6091) 03/09/07