WABCO 400 500 320 0, Руководство по обслуживанию

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17
ABS Questions and Answers
Most trailers manufactured prior to February 1998 require that the brakes be applied to operate the ABS
indicator lamp. If the indicator lamp stays on when the brakes are applied to a moving vehicle, service the
ABS system.
What does the trailer ABS indicator lamp mean to service personnel?
The trailer ABS indicator lamp on the side of the trailer indicates the status of the trailer ABS. If it comes ON
and stays ON when you apply the brakes to a moving vehicle, there is an ABS malfunction. It is normal for
the lamp to come ON and go OFF to perform a bulb check, but it should not stay ON when the vehicle is
moving above 4 mph. As with any safety system, it is important not to ignore this indicator. If the indicator
lamp indicates a malfunction, the vehicle can be operated to complete the trip, but it is important to have
it serviced as soon as possible using the appropriate maintenance manual to ensure correct braking
performance and that the bene
fi ts of ABS remain available to your drivers. Typical ABS indicator lamp
mounting locations are illustrated in Figure 4.1.
Fig. 4.1
10032 9 4d
Typical ABS Indicator Lamp Mounting Location on Side of Trailer
Can you continue to operate a vehicle when the indicator lamp indicates a fault?
Yes. When a fault exists in the ABS, standard braking returns to the affected wheel, and the ABS still
controls other monitored wheels. This lets you complete the trip. You should not ignore the indicator lamp
and should have the vehicle serviced as soon as possible after the lamp comes ON and stays ON.