AIR BRAKES - GENERAL INFORMATION
6x4 Tractor With Steel Spring Suspension (Figures
11 and 12)
Figure 11 illustrates a tractor with a modular control valve
for spring brake and tractor protection controls, while
Figure 12 illustrates a tractor with separate spring brake
and tractor protection controls. Primary service system
is at the front axle and the rear rear axle brakes
,secondary service system is at the forward rear axle.
The trailer service brakes will assist either the primary or
secondary systems.
Figure 11 - 6x4 Tractor Refined Split Air System With Steel Spring Suspension and Modular Control
Valve For Spring Brake and Tractor Protection Control
CTS-4154Y - Page 11
