si4330w0002a

Service information: Retarder and engine brake response of unloaded vehicle

Tipo si · tema 43.30 · versão 0100 · 2003-06-18

Válido para: MODELS 950.###, 952.###, 953.###, 954.### #K as of 486551 with CODE (BA9) Voith R115 secondary retarder with CODE (BB8) Electropneumatic brake (EPB) with BS/EPB control unit part no. 000 446 25 36 and 000 446 26 36

Não disponível em “pt”; apresentado em Inglês.

Onde se situa

Grupo funcional 2 Chassí › 43 Freios – pneumática e freios auxiliares › 43.30 Retardador (hidráulico) — Série 950 · Série 952 · Série 953 · Série 954

EinPAS 21 freios/sistemas de vácuo/sistema de ar comprimido › 21.20 Freio motor › 21.20.1 Informação básica — Série 950 · Série 952 · Série 953 · Série 954

EinPAS 21 freios/sistemas de vácuo/sistema de ar comprimido › 21.21 Retarder › 21.21.1 Informação básica — Série 950 · Série 952 · Série 953 · Série 954

EinPAS 45 Dados/informação › 45.20 Informação/ações › 45.20.20 Informação de serviço — Série 950 · Série 952 · Série 953 · Série 954

SI43.30-W-0002A

Service information: Retarder and engine brake response of unloaded vehicle

MODELS 950.###, 952.###, 953.###, 954.### #K as of 486551
with CODE (BA9) Voith R115 secondary retarder
with CODE (BB8) Electropneumatic brake (EPB)
with BS/EPB control unit part no. 000 446 25 36 and 000 446 26 36

Modification notes

20.9.00

Replaces STIN No. 43.30W010 dated 25.9.2000

In cases of complaints about inadequate retarder and engine brake response of unloaded vehicles no repair action is required on vehicles equipped with the BS/EPB control modules specified above. The impression of weak brake response is design related.

The control modules have been modified to avoid ABS activation that may occur in unloaded vehicles during rapid engagement of retarder levels.

Never respond to such complaints by replacing the BS/EPB or FR/FMR control modules.

Where several retarder levels are engaged quickly, the modified control modules now in use will deliver the braking power required, but not so much as to cause wheel lock-up.

The level of braking power is, however, always sufficient for the given road conditions.