Instruction Manual

29
For all vocations additional lining options available. Submit application request for possible approval.
All brakes shown with max GAWR less than 29,000 lb meet FMVSS-121, S5.4 dynamometer requirements. For all
brakes shown with max GAWR of 29,000 lb and greater, FMVSS-121 is not applicable.
Recommended Options
• Wide brake package for longer brake life to reduce operating cost, see page 34
• LMS (Low-Maintenance System) brakes and hubs for extended lubrication intervals, simplifi ed hub installation and reduced
bearing endplay
• ADB (air disc brake) on steer axles for improved braking performance
• ADB (air disc brake) on all vehicle axles for improved fade resistance and stopping power
• 19.5" wheel package for signifi cantly reduced weight and lower frame height:
Steer axle: ES1506D
Drive axle: ES1508D
• Bendix
®
automatic slack adjusters (ASA) for maximized S-cam brake performance
Notes: 1. Mixing of ADB (Air disc brakes) on steer axle and S-cam brakes (drive axle) require BSFB application approval.
Brake Max. Max. Air Chamber Brake Adjuster
Model GAWR (lb) SLR (in) Linings Size (in
2
) Length (in) Notes
Steer Axle Brakes
ES1506D 10,000 19.6 ES290 20 5.5
ES1655D 13,200 21.5 ES420,440,450S,600 20 or 24 5.5
ES1655D 14,600 21.5 ES420,440,600 24 5.5
ES1656D 16,000 21.5 ES420,440,600 24 5.5
ADB22X 20,000 21.5 Bendix
®
20 N/A
Drive Axle Brakes
ES1508D 17,000 16.8 ES290 30 5.5
ES1657D 20,000 21.5 ES410,420,440,450,600 30 5.5
ES1657D 22,000 21.5 ES600 30 5.5
ES1657D 23,000 22.0 ES690 30 5.5
ES1658D 23,000 20.7 ES420,450 30 5.5
ADB22X 23,000 21.5 Bendix
®
18 N/A
School Bus