Unimog U500, Инструкция по монтажу

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Body and Implement Mounting Guidelines U500 North America Electrical system
August 2005 Page 221 of
294
7 Electrical system
7.1 General notes on the electrical system
The U500NA has a 12 V vehicle circuit voltage and a serial bat-
tery-isolating switch.
Important Note:
The vehicle has also 24 V in some loca-
tions in the electrical system.
7.1.1 Technical data of the electrical system
Alternator 14 V, 145 A
Alternator with increased power (option
code M37)
14 V, 270 A
Starter 12 V, 3 kW
Batteries 3x12 V, 96 Ah
Lights 12 V
Electronics (except FR
1
and MR
2
) 24 V
Table 7.1: Technical data of the electrical system
Note:
1
ECU for chassis (12V)
2
ECU for engine (12V)
Trailer socket rear 7-pin
Implement socket at battery box 16-pin
Permanent power socket with speed signal in cab 3-pin
Implement socket front (optional, Code E45) 7-pin
Table 7.2: Electrical interfaces
Option
codes:
Descriptions:
E44 12 V jump start terminals
E53
Preparation for CB / mobile telephone (12 V), incl.
antenna
E54 Preparation for two-way radio (12 V), incl. antenna
E55 Antenna and two loudspeakers
Table 7.3: Optional electrical equipment
7.2 Lighting
Following the mounting of implements/bodies on the Unimog the
adjustment of the headlights should be checked.
In case of attaching an implement/body, the implement/body
manufacturer is responsible for compliance with regulations to
lighting of a vehicle.
Bulb warning system & Installation of LED lights
The Unimog incorporates a “Bulb Warning” system. The control
module is part of the Basic Module (behind the passenger seat).
The purpose of the Bulb Warning is to monitor the brake lights,
park lights, low beam headlights, high beam headlights, taillights
or license plate light for bulb or fuse failure.
In the case that L.E.D. (Light Emitting Diode) lights are installed
the Bulb Warning indicator will be illuminated in the driver’s dis-
play (see Figure 7.1). This is due to the extremely low current
draw of LED lights.