Anti-Lock Brake System (Abs); Abs Warning Lamp; Using Abs - Ford F-750 Owner's Manual

Driving

ANTI-LOCK BRAKE SYSTEM (ABS)

A noise from the hydraulic pump motor and pulsation in the pedal may
be observed during ABS braking events. Pedal pulsation coupled with
noise while braking under panic conditions or on loose gravel, bumps,
wet or snowy roads is normal and indicates proper functioning of the
vehicle's ABS. If the vehicle has continuous vibration or shudder in the
steering wheel while braking, the vehicle should be inspected by a
qualified service technician.
The ABS operates by detecting the
onset of wheel lockup during brake
applications and compensating for
this tendency. The wheels are
prevented from locking even when
the brakes are firmly applied. The
accompanying illustration depicts the
advantage of an ABS equipped vehicle
(on bottom) to a non-ABS equipped
vehicle (on top) during hard braking with loss of front braking traction.

ABS warning lamp

The warning lamp in the instrument cluster momentarily illuminates
ABS
when the ignition is turned on and the engine is off. If the light does not
illuminate momentarily at start up, remains on after the vehicle reaches 5–10
mph (10–15 km/h), or continues to flash, the ABS needs to be serviced.
With the ABS light on, the anti-lock brake system is disabled and normal
braking is still effective unless the brake warning light also remains
illuminated. (If your parking brake warning lamp illuminates, have your
vehicle serviced immediately).

Using ABS

• In an emergency or when maximum efficiency from the ABS is
required, apply continuous full force on the brake. The ABS will be
activated immediately, thus allowing you to retain full steering control
of your vehicle and, providing there is sufficient space, will enable you
to avoid obstacles and bring the vehicle to a controlled stop.
• The ABS does not decrease the time necessary to apply the brakes or
always reduce stopping distance. Always leave enough room between
your vehicle and the vehicle in front of you to stop.
• We recommend that you familiarize yourself with this braking
technique. However, avoid taking any unnecessary risks.
116
2007 F-650/750 (f67)
Supplement (supplement)
Canadian_French (fr_can)