Hellwig Pro Series 61912 - Manual

INSTALLATION INSTRUCTIONS
Thank you for purchasing a quality Hellwig Product.
PLEASE READ THIS INSTRUCTION SHEET COMPLETELY BEFORE STARTING YOUR INSTALLATION PROCEDURES.
1. Lay out the spring leaves into two (2) sets. Each will consist of a main leaf with u-bolt cups and a second leaf
without cups. Lay the leaves so that the long ends are all in the same direction. Stack the leaves so that the
main leaf is on top. The long end of the spring stack must be installed toward the rear of the vehicle and the
short end toward the front.
2. Place the spring stack on top of the main spring with the long end toward the rear of the vehicle.
3. Place the U-bolts with the straight legs in the cups at the ends of the spring with the silencer bushing between
the main spring and the helper spring as shown in the diagram. Loosely install the crossbars using the
hardware provided.
4. Adjust the crossbars on the end of the springs so that the adjacent leaf tip will not make contact with the
crossbar when the spring is deflected. It may be necessary to move the spring stack fore or aft for best
alignment.
009 ( R-009) 2/26/2013
TORQUE TABLE
BOLT SIZE: 3/8” = 20-30 ft. lbs. – 7/16” = 35-45 ft. lbs. – 1/2” = 50-70 ft. lbs. – 9/16” = 70-90 ft. lbs
SAFETY: PARK YOUR VEHICLE ON A FLAT LEVEL SURFACE, SET THE PARKING BRAKE AND CHOCK THE FRONT TIRES.
NOTES:
1. THIS KIT INCLUDES LOCKNUTS WHICH REQUIRE TIGHTENING WITH A WRENCH AFETR BEING STARTED BY HAND.
2. IF YOUR VEHICLE IS EQUIPPED WITH A BRAKE FLUID PROPORTIONING VALVE ON THE REAR AXLE READ INSERT
(R-362)
3. YOUR SPRING MAY HAVE A SMALL HOLE IN THE END. THIS IS FOR OUR MANUFACTURING PROCESS AND WILL NOT
BE USED.
4. IF YOUR VEHICLE IS EQUIPPED WITH A FACTORY CONTACT OVERLOAD IT MUST BE REMOVED BEFORE
INSTALLING THE NEW HELPER SPRINGS
5. HELLWIG HELPER SPRINGS ARE DESIGNED TO INCREASE THE “LEVEL LOAD” CARRYING CAPACITY OF YOUR
VEHICLE. NEVER LOAD THE VEHICLE THAT THIS UNIT IS INSTALLED ON BEYOND THE MANUFACTURER’S
MAXIMUM GROSS VEHICLE WEIGHT RATING.
For installations on a Ford F150, tighten the front leaf tip U-bolt until the gap in the polyurethane silencer bushing
is fully compressed.
Offset U-bolts
Crossbars
Leaf Tip
Straight U-bolt
Leaf Stack
Hat Section
Main Spring
Main Leaf
Second Leaf
Silencer Bushing
559-734-7451 800-367-5480 FAX 559-734-7460