Ford 750 2009 Owner's Manual page 100

Driving
HYDRAULIC BRAKES (IF EQUIPPED)
Full power brake system
The Full Power Brake System incorporates standard braking, Anti-lock
Braking (ABS), and optional Power Park Brake into one fully integrated
hydraulic brake system. With the Full Power Brake System, braking
energy is stored, similar to an air brake system, resulting in faster
response times and shorter stopping distances. This is accomplished
using motor/pump assemblies that pressurized the system by pumping
brake fluid into accumulators. This is similar to the air compressor of an
air brake system pressurizing the air tanks. The system includes a master
cylinder that provides the normal pedal "feel" and transfers the pedal
force, via brake fluid, to the main components of the Full Power Brake
System.
NOTE: The motor/pumps will run momentarily with the ignition switch
in the ON/RUN positions or the switch is in the OFF position and the
brake pedal is depressed.
WARNING: If the red BRAKE warning lamp in the instrument
cluster remains illuminated after engine start up, this indicates a
system failure in the Full Power Brake System. Stop the vehicle safely
as soon as possible and seek service immediately.
NOTE: During normal driving the pump/motors may be heard
replenishing the accumulators. This is a normal function of the Full
Power Brake System.
100
2009 F-650/750 (f67)
Supplement
USA (fus)