Johnston VM502, Maintenance Manual

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V Range 502
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652
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802 Maintenance Manual
MA3:2
Chapter - Electrical System
General Description
The system is integrated with that of the chassis in that it shares its battery and power source. The
auxiliary engine is equipped with a second alternator to supplement power generation. The system
activates all operational functions of the machine.
System Description
The electrical system circuit diagrams are sub divided into modular sub circuits all of which use the
same identification number ending with a revision alpha code, i.e. A, B, C etc. All circuit diagrams are
up-issued simultaneously irrespective to change, so they will all display the identical alpha code.
To assist fault finding and troubleshooting, the solenoids have an LED in the electrical connection plug
which illuminate when power is achieved.
The electrical system is protected by various fuses.
INTRODUCTION