Bomag BW 156 D-3, Руководство по обслуживанию

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Service Training
BW 156/177 D-3/PD-3 - G 3 -
BW 178/179 D-3/PD-3
Battery
When the engine is at rest the voltage for the vehicle electrics is supplied by one or two parallel
rechargeable and low-maintenance 12 V lead batteries.
The minus pole of the battery (G01:05) is connected with vehicle ground (potential 31).
The plus pole of the battery (G01:02) is connected with potential 30 via the main fuse (F00:02).
There is a direct connection between battery (+),
• terminal B+ on the generator (G02:15) and
• starter (M01:05) (Fig. 2) terminal 30.
• Battery (-) minus to vehicle ground potential 31
Note:
Potentials 30, 31 and B+ are always directly connected with the battery. The current is only be
interrupted if the battery is empty or disconnected.
Generator
When the engine is running a 14 V generator (G02:16) supplies the vehicle electrics via terminals B+
(to potential 30) and B- (to potential 31) with current.
Terminal D+ provides a (+) or (-) signal to the generator module (A23:23). When the engine is not
running terminal D+ is negative (ground potential). The charge control in the fault monitoring unit (A15)
(Fig. 3) lights up. See section „monitoring board“.
Sockets
The machines are equipped with two sockets (XS:36/XS:39). These are connected with potential 30 and
protected by the fuses (F05).