Frame Emergency Off Switch, Component Description - Mercedes-Benz OM 471 Introduction Into Service Manual

System components
GF54.25>W>4131H
MODEL 963 with CODE (E5T) ADR model class EX/II, including AT
MODEL 963 with CODE (E5U) ADR model class EX/III, including EX/II and AT
MODEL 963 with CODE (E5V) ADR model class FL including EX/II, EX/III and AT
MODEL 963 with CODE (E5X) ADR model class AT
MODEL 963 with CODE (E5Z) Accessories, ADR
MODEL 963 with CODE (E9D) Preinstallation, double>pole battery disconnect switch
MODEL 963 with CODE (E9E)
Location
Shown on left>hand drive vehicle
S31 Frame EMERGENCY OFF switch
The frame EMERGENCY OFF switch (S31) is located on the driver
side behind the cab at the level of the wheel arch.
Task
The switching positions of the frame EMERGENCY OFF switch
(S31) are evaluated by the battery disconnect switch (BESO)
control unit (A33). When the frame EMERGENCY OFF switch (S31)
is pressed, the battery disconnect switch (BESO) control unit (A33)
ensures that the engine is switched off and all electrical
consumers are disconnected from the on>board electrical system.
166

Frame EMERGENCY OFF switch, component description

– This printout will not be recorded by the update service. Status: 09 / 2011 –
Design
Double>throw contact switch with protective cap designed as a
flap in order to rule out inadvertent actuation.
2.8.11
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