TM 5-3805-263-14&P-3
GRADER ELECTRICAL SYSTEM
INDEX
Page
BLOCK DIAGRAM.............................................................................................................................................. 4-18
CODES AND ABBREVIATIONS ........................................................................................................................... 4-19
ELECTRICAL COMPONENT LOCATION AND IDENTIFICATION ...................................................................... 4-62
ELECTRICAL SCHEMATIC .................................................................................................................................. 4-11
ELECTRICAL SYSTEM
Instrument Panel (EMS).................................................................................................................................. 4-13
Instrument Gauge Panel ................................................................................................................................ 4-15
Operators Panel Console................................................................................................................................ 4-17
ELECTRONIC MONITORING SYSTEM (OPERATOR PANEL) .......................................................................... 4-20
INDIVIDUAL CIRCUIT DESCRIPTION (SIMPLIFIED SCHEMATICS) ................................................................. 4-43
Back-Up Alarm Circuit .................................................................................................................................... 4-50
Black Out Driving Lights Circuit ...................................................................................................................... 4-57
Blade Lamps ................................................................................................................................................... 4-53
Cigar Lighter ................................................................................................................................................... 4-52
Differential Lock .............................................................................................................................................. 4-59
Driving and Panel Lights Circuit...................................................................................................................... 4-55
EMS Circuit ..................................................................................................................................................... 4-61
Horn Circuit .................................................................................................................................................... 4-44
Operator Panel................................................................................................................................................ 4-44
Indicator ....................................................................................................................................................... 4-45
Alternator .................................................................................................................................................. 4-45
Supplemental Steering ............................................................................................................................. 4-45
Indicator and Master Fault Light ..................................................................................................................... 4-46
Engine Coolant Temperature ................................................................................................................... 4-46
Hydraulic Oil Temperature ....................................................................................................................... 4-46
Indicator, Master Fault Light and Fault Alarm ................................................................................................. 4-47
Brake Pressure......................................................................................................................................... 4-48
Engine Oil Pressure ................................................................................................................................. 4-47
Park Brake............................................................................................................................................................. 4-52
Rear Flood Light .................................................................................................................................................... 4-52
Service Meter ........................................................................................................................................................ 4-50
Start Aid (Ether) Circuit.......................................................................................................................................... 4-51
Start Circuit............................................................................................................................................................ 4-49
Turn Signal Circuit ................................................................................................................................................. 4-53
TROUBLESHOOTING METHODS .................................................................................................................... 4-18
TROUBLESHOOTING THE ELECTRONIC MONITORING SYSTEM ................................................................. 4-22
(E.M.S.) OPERATOR PANEL
4-9/(4-10 Blank)
