Functions and parameters
Brake system 3100
Publication No. Date Valid from serial number T-code
261828-040 2008-08-21 6051502 815, 816
© BT Repair Manual RRE140/160/180/200/250 4 – 9
4.4 Brake system 3100
4.4.1 General
The truck has three different types of brake:
• Travel brake
• Parking brake
• Emergency brake
Travel brake
The travel brake consists of two different systems:
• Regenerative motor braking using the drive motor
• Two electromechanical multiple disc brakes fitted in the support arm
wheels (option)
Parking brake
The parking brake is made up of a single stage electromechanical disc
brake fitted on the drive motor and which is engaged by means of
spring pressure. The parking brake is released electrically (DC volt
-
age).
The parking brake is activated/is active as follows:
• The parking brake is activated automatically when the truck has
been stopped while being driven and the brake pedal is depressed
with the truck stationary. The brake is released when the accelerator
is depressed.
• The parking brake is activated automatically with a few seconds de-
lay when the operator leaves the truck.
• The parking brake remains active after the main power has been
switched on.
Emergency brake
Emergency braking of the truck takes place in the event of a fault with
the steering system or a serious fault in the electrical system.
The parking brake on the drive motor is the main emergency brake.
Motor braking can operate during emergency braking provided there is
a supply voltage. If there are support arm brakes on the truck, these are
also engaged during emergency braking.
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