Specifications

L
40
Airtek / Softek Suspension: Appendix 1
Front Axle & Suspension
o p e r a t i o n
In t e r v a l :
Mo n t h s /Mi l e s
whichever
occurs first
n o t e s
first 1000 miles 6 / 6,000 12 / 12,000
Spring Suspension
Inspect visually
•
Check for visual damage. See Hendrickson publication 17730-248.
Check U-bolt torque
• •
Tighten to 285–305 ft. lbs (32–34 Nm).
Lubricate steering grease fittings
•
Use NLGI #2 EP or equivalent.
Inspect spring pin lock bolts
•
Tighten to 380–420 ft. lbs. (515–569 Nm).
Inspect shackle bracket pivot bolt
•
Tighten to 380–420 ft. lbs. (515–569 Nm).
Inspect shocks
•
Check for signs of leaks, wear, or damage.
Torque shock mounting bolts
•
TIghten to 215 ft. lbs. (25 Nm).
Air Suspension
Inspect visually
•
Check for wear, damage, misalignment. See Hendrickson publication 17730-248.
Check axle to suspension fasteners
• •
Tighten to 285–305 ft. lbs (32–34 Nm).
Lubricate steering grease fittings
•
Use NLGI #2 EP or equivalent. Lube with suspension loaded.
Inspect pin lock bolts
•
Tighten to 380–420 ft. lbs. (515–569 Nm).
Inspect shackle bracket pivot bolt
•
Tighten to 380–420 ft. lbs. (515–569 Nm).
Torque shock mounting bolts
•
TIghten to 215 ft. lbs. (25 Nm).
Inspect air spring cushions
•
Check for wear, abrasions, cuts, or other damage
Check air spring fasteners
•
Inspect shocks
•
Check for signs of leaks, wear, or damage.
Check suspension height
•
Shock length, eye to eye: 18.5” ± .25”. (470 ± 6mm).
Check ride height control valve bolts
•
TIghten to 8–10 ft. lbs. (11–14 Nm).