023-00054E(M500V Tier II sn2000-Up)(023-00054Ecover.fm) Mega 500-V (Tier II) (EN)

Electrical System

1 ELECTRICAL SYSTEM

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Electrical System S0802195K

S0802195K 1 ELECTRICAL SYSTEM CAUTION! Follow all safety recommendations and safe shop practices outlined in the front of this manual or those contained within this section. Always use tools and equipment that is in good working order. Use lifting and hoisting equipment capable of safely handling load. Remember, that ultimately safety is your own personal responsibility. ELECTRICAL SYSTEMS0802195K Copyright 2002 Doosan June 2002 S0802195K Page 1 Electrical System MODEL SERIAL NUMBER RANGE Mega 500-V (Tier II) 2001 and Up

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Electrical System S0802195K

TABLE OF CONTENTS Overview ........................................................................................................ 4 Electric Supply System .................................................................................. 6 Engine Starting Circuit ................................................................................... 8 Operation During Start Process.............................................................. 8 Operation After Start Process............................................................... 10 Engine Stop and Derating System ...............................................................

12 Operation In Engine Stop...................................................................... 12 Operation in Engine Derating................................................................ 12 Charging System.......................................................................................... 14 Monitoring System ....................................................................................... 15 Instrument Panel................................................................................... 16 Function Check .....................................................................................

17 Monitoring System Schematic .............................................................. 18 Operation .............................................................................................. 20 Windshield Wiper ......................................................................................... 24 Front Windshield Wiper......................................................................... 24 Rear Windshield wiper .......................................................................... 25 Lighting System............................................................................................

28 Light Circuit ........................................................................................... 28 Engine Control System................................................................................. 31 ECM Block Diagram.............................................................................. 31 ECM Electric Circuit ..................................................................................... 32 ECM External Circuit............................................................................. 32 ECM Internal Circuit..............................................................................

33 ECM System Component............................................................................. 34 ECM (Electronic Control Module).......................................................... 34 Alternate (Switchable) Torque Switch ................................................... 34 Alternate Low Idle Switch...................................................................... 35 Idle Speed Control Switch..................................................................... 35 Engine Diagnostic Switch...................................................................... 36 Engine Fault Codes...............................................................................

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Electrical System S0802195K

Fault Code Information.......................................................................... 38 Electronic Accelerator .................................................................................. 45 Electric Specification............................................................................. 45 Switch Specification .............................................................................. 45 Mechanical Specification (Pedal Sensor).............................................. 46 Data Link ......................................................................................................

46 LIS (Load Isolation System) - Option ........................................................... 46 Aeb Starter................................................................................................... 48 Introduction ........................................................................................... 48 List of Abbreviations.............................................................................. 48 Procedure to Start AEB......................................................................... 48 Display During AEB-mode .................................................................... 49 S0802195K Page 3 Electrical System

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