4 – 4 Repair Manual RRE140/160/180/200/250 © BT
Functions and parameters
Motors 1000
T-code Valid from serial number Date Publication No.
815, 816 6051502 2008-08-21 261828-040
4.2.3 Electric steering motor (1730)
General
The steering motor is located on the drive unit housing. It receives sig-
nals from the pulse generator located in the steering column. The steer-
ing motor is equipped with a gear wheel working directly on the gear rim
of the drive gear.
There are two sizes of steering motor.
On RRE140–RRE160, 247454-001 is used.
On RRE180–RRE250, 208014-003 is used.
Design
The steering motor has the EPS electronics fitted directly on top of it
(a).
The motor (b) is a brushless synchronous motor with permanently mag-
netised rotor.
The steering motor is integrated with a two-stage planetary gear (c) that
has a gear wheel on its output shaft in direct contact with the gear rim
on the drive gear.
a
c
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