Fastener Tightening Specifications Haulmaxx Suspension
Application | Specification | |
|---|---|---|
Metric | English | |
Frame Fasteners Furnished and Installed by Truck Manufacturer¹ | ||
Auxiliary Spring Bracket to Saddle (Locknut) | 129 N·m | 95 lb ft |
Auxiliary Spring Plate to Beam Assembly (Locknut) | 129 N·m | 95 lb ft |
Auxiliary Spring Shim to Auxiliary Spring Contact Plate (Locknut) | 129 N·m | 95 lb ft |
Bar Pin Attachment to Axle (Bolt Head) | 780 N·m | 575 lb ft |
Bar Pin Attachment to Axle (Locknut) | 712 N·m | 525 lb ft |
Bolster Spring to Beam Assembly (Locknut) | 129 N·m | 95 lb ft |
Bolster Spring to Saddle (Locknut) | 129 N·m | 95 lb ft |
Inboard Frame Bracket to Outboard Frame Bracket and Crossmember (Locknut) | 257 N·m | 190 lb ft |
Inboard Saddle Bolts | 70 N·m | 95 lb ft |
Rebound Clip to Saddle (Locknut) | 129 N·m | 95 lb ft |
Rebound Strap to Auxiliary Spring Contact Plate (Locknut) | 68 N·m | 50 lb ft |
Saddle to Outboard Frame Bracket (Locknut) | 420 N·m | 310 lb ft |
Shock Absorber to Beam (Locknut) | 108 N·m | 80 lb ft |
Shock Absorber to Frame Bracket (Locknut) | 217 N·m | 160 lb ft |
Transverse Torque Rod to Axle (Locknut) | 271 N·m | 200 lb ft |
Transverse Torque Rod to Frame | 257 N·m | 190 lb ft |
Note:¹ Torque values listed above apply only if Hendrickson® supplied fasteners are used. If non-Hendrickson® fasteners are used, follow the suppliers specifications. | ||
Fastener Tightening Specifications Except Haulmaxx Suspension
Application | Specification | |
|---|---|---|
Metric | English | |
Single Axle Suspension | ||
Bumper Nut | 50 N·m | 37 lb ft |
Shock Absorber Lower Nut | 85 N·m | 63 lb ft |
Shock Absorber Upper Nut | 85 N·m | 63 lb ft |
Spring Eye Bolt Front Nut-6500, 7500, 8500 | 485 N·m | 358 lb ft |
Spring Hanger Nut | 85 N·m | 63 lb ft |
Spring Hanger Rebound Bolt, Taperleaf Spring | 415 N·m | 305 lb ft |
Stabilizer Bracket Nut | 85 N·m | 63 lb ft |
Stabilizer Link Nut-6500, 7500, 8500 | 240 N·m | 177 lb ft |
Stabilizer Shaft Nut | 240 N·m | 177 lb ft |
22 mm (0.866 in) U-Bolt Anchor Plate Nut Final Torque | 415 N·m | 308 lb ft |
Tandem Axle Suspension | ||
Adapter Nut | 300 N·m | 220 lb ft |
Center Nut | 81 N·m | 60 lb ft |
Equalizing Beam Bolt Nut | 700 N·m | 516 lb ft |
Rebound Nut | 75 N·m | 55 lb ft |
Saddle Cap Nut | 340 N·m | 250 lb ft |
Saddle Cap Stud | 81 N·m | 60 lb ft |
Saddle Top Pad Bolt Final Torque | 385 N·m | 285 lb ft |
Setscrews | 170 N·m | 125 lb ft |
Spring Bracket Nut - Front | 200 N·m | 149 lb ft |
Spring Bracket Nut - Rear | 175 N·m | 130 lb ft |
Spring Hanger Nut | 85 N·m | 63 lb ft |
Torque Rod Bracket to Cross Member Bolt Nut | 85 N·m | 63 lb ft |
Torque Rod to Axle Bracket Bolt Nut | 175 N·m | 130 lb ft |
U-Bolt 20 mm Nut Final Torque | 330 N·m | 243 lb ft |
U-Bolt 22 mm Nut Final Torque | 415 N·m | 308 lb ft |
