Axial Mounted Brakes
Important: The following information applies to all types of axial mounted brake applications.
- Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.
- Raise the vehicle and support it on jack stands.
- Remove all of the wheel assemblies. For instructions, see of the S2 Chassis Workshop Manual .
- Set a torque wrench to 350 lbf·ft (475 N·m)
and tighten the caliper mounting bolts following the tightening pattern
shown in Fig.Axial Bolt Tightening
Pattern.
If they do not turn, no further work is needed. If they turn, take
the vehicle to an authorized Freightliner dealer to have all of the
caliper bolts on that wheel end replaced. Due to limited caliper bolt
access, it may be necessary to use tool DDC DSNCHA018005 referenced
in tool letter 18TL18. See Fig.DDC DSNCHA018005
30mm Air Disc Brake Caliper Brake Bolt Torque
Adaptor. If the tool is needed, see Table.Torque Check
with 47 Inch (119 cm) Torque Wrench and Tool DDC
DSNCHA018005 for torque specifications for a 47 in (119 cm) long
wrench.
Note: In all steps that require a torque wrench, use a Snap On torque wrench ATECH4RS600, or an equivalent, with a center to handle length of 47 inches (119 cm).
Axial Bolt Tightening Pattern
DDC DSNCHA018005 30mm Air Disc Brake Caliper Brake Bolt Torque Adaptor
Torque Check with 47 Inch (119 cm) Torque Wrench and Tool DDC DSNCHA018005
Torque Check with 47 Inch (119 cm) Torque Wrench and Tool DDC DSNCHA018005
Angle View
Extension Angle (degrees)
Target Torque ~~*~lbf·ft (N·m)]
Tool Setting ~~*~lbf·ft (N·m)]
0
350 (475)
296 (401)
45
310 (420)
60
320 (434)
90
350 (475)
120
386 (523)
135
40
- Install the wheel assemblies. For instructions, see of the S2 Chassis Workshop Manual .
- Remove the jack stands and lower the vehicle.