Service Training
BW 156/177 D-3/PD-3
- G 6 -
BW 178/179 D-3/PD-3
Note:
The starter (M01) is directly supplied with current by potentials B+ and 31.
After releasing the ignition key the ignition switch will automatically return to position "1".
During the starting process a signal 50a is transmitted to the fault monitoring board (A15) (Fig. 3).
During the starting process this signal avoids sounding of the warning buzzer and activation of the
automatic engine shut-down (see description of the fault monitoring unit).
For a new starting attempt the ignition must first be switched off (lock against repetitive starting).
Ignition switch (S00) in position "1" (ignition on) with the engine running
When the engine is running the generator (G02) (Fig. 1) produces current. This current flows now from
terminal D+ to the generator module (A23). The output signal MD+ supplies the operating hour meter
(P00) with current.
Furthermore, the MD+ signal is transmitted to the fault monitoring unit (A15) (Fig. 3) and the brake
control relay (K36) (Fig. 5).
The internal logic of the fault monitoring unit switches the charge control light off.
The automatic shut-off in the fault monitoring unit (A15) is activated and the warning buzzer is ready to
sound in case of a fault.
Summary of Contents for BW 156 D-3
Page 143: ...Service Training BW 156 177 D 3 PD 3 G 2 BW 178 179 D 3 PD 3 Supply Fig 1 Power supply...
Page 152: ...Service Training BW 156 177 D 3 PD 3 G 11 BW 178 179 D 3 PD 3 Brakes Fig 5 Brake...
Page 159: ...Service Training BW 156 177 D 3 PD 3 G 18 BW 178 179 D 3 PD 3 Vibration Fig 7 Vibration...
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