Hellwig EZ 991 - Manual

INSTALLATION INSTRUCTIONS
ADD A LEAF HELPER SPRING
Thank you for purchasing a quality Hellwig Product.
PLEASE READ THIS INSTRUCTION SHEET COMPLETELY BEFORE STARTING YOUR INSTALLATION
TORQUE TABLE
BOLT SIZE: 3/8” = 20-30 ft. lbs. – 7/16” = 35-45 ft. lbs. – ½” = 50-70 ft. lbs. – 9/16” = 70-90 ft. lbs.
NOTE: DO NOT INSTALL THIS UNIT ON ANY VEHICLE WITH COMPOSITE (Plastic) LEAF
SPRINGS
NOTE: IF THIS UNIT IS TO BE INSTALLED ON ANY DODGE VAN OR MOTORHOME CHASSIS
MODEL NUMBERS, B300, B400, MB300, MB400, F30, F40, OR F44 WITH THE PLASTIC MOLDED
GAS TANK, A SPECIAL CLEARANCE BRACKET IS REQUIRED AND IS AVAILABLE THROUGH
YOUR LOCAL DEALER OR THROUGH HELLWIG PRODUCTS CO.
1. Remove U-bolts at axle and place the helper spring on top of the main spring. Replace the U-bolts and tighten to the
manufacturer’s torque specification.
2. Raise the vehicle by the frame so the wheels are slightly touching the ground, be sure to use jack stands and to chock
tires.
3. Install adjustment U-bolts and install the crossbars with the washers and nuts.
4. Return the vehicle to the ground and adjust the U-bolts to desired height and tension. Double nut the U-bolts after
adjusting. The clearance between the helper spring and the truck spring should be no less than 1/4 inch.
5. Bounce the vehicle checking for clearance on all undercarriage components, brake lines, fuel lines, wiring, etc
IMPORTANT NOTE: 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.
ATTENTION INSTALLER: BE SURE THE CUSTOMER RECEIVES THIS INSTRUCTION SHEET, ALL
IMPORTANT NOTE CARDS, WARNING CARDS, AND THE WARRANTY FORM.
(9001)
R-42 07/15/03
559-734-7451 800-367-5480 FAX 559-734-7460