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Driving, Brake – FORD 2002 F-550 v.2 User Manual

Page 134

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The ABS operates by detecting the
onset of wheel lockup during brake
applications and compensates 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.

Using four wheel ABS

• In an emergency or when maximum efficiency from the four wheel

ABS is required, apply continuous force on the brake. The four wheel
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 anti-lock system does not 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.

ABS warning lamp

ABS

The

ABS

warning lamp in the instrument cluster momentarily illuminates

when the ignition is turned to the ON position. If the light does not
illuminate momentarily at start up, remains on 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 with parking brake
released. (If your brake warning lamp illuminates, have your vehicle
serviced immediately.)

!

BRAKE

Driving

134

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