Chapter 6: Electrical System - Toro Groundsmaster 5900 Series Service Manual

Table of Contents
General Information .............................................................................................................................. 6-3
Operator's Manual ............................................................................................................................. 6-3
Operator Cab Components ................................................................................................................ 6-3
Toro Electronic Controllers (TEC)....................................................................................................... 6-3
Engine Electronic Control Unit (ECU) ................................................................................................ 6-5
Yanmar Engine Electrical Components.............................................................................................. 6-5
Battery−Disconnect Switch ................................................................................................................ 6-6
Electrical System Operation .................................................................................................................. 6-7
12 Volt System ................................................................................................................................... 6-7
24 Volt System ................................................................................................................................... 6-7
CAN−bus Communications................................................................................................................ 6-8
Electrical Drawings ............................................................................................................................ 6-8
InfoCenter Display ................................................................................................................................. 6-9
Operator Information Screen............................................................................................................ 6-11
MAIN MENU .................................................................................................................................... 6-13
SERVICE ......................................................................................................................................... 6-14
HOURS ............................................................................................................................................ 6-15
TRACTION PEDAL.......................................................................................................................... 6-16
FAN OVERRIDE .............................................................................................................................. 6-18
FAN DEMO ...................................................................................................................................... 6-19
REGENERATION ............................................................................................................................ 6-20
DIAGNOSTICS SCREENS.............................................................................................................. 6-22
Electrical System Quick Checks....................................................................................................... 6-42
Adjustments......................................................................................................................................... 6-46
Cutting Deck Position Switch Adjustment......................................................................................... 6-46
Component Testing.............................................................................................................................. 6-53
Fusible Link Harness........................................................................................................................ 6-54
Mega Fuses ..................................................................................................................................... 6-56
Fuses ............................................................................................................................................... 6-57
Battery−Disconnect Switch .............................................................................................................. 6-61
Toro Electronic Controllers (TECs)................................................................................................... 6-63
Key Switch ....................................................................................................................................... 6-68
PTO Switch ...................................................................................................................................... 6-70
Cutting Deck Raise/Lower Switches ................................................................................................ 6-72
Throttle Switch ................................................................................................................................. 6-74
High/Low Range Traction Speed Switch .......................................................................................... 6-76
Cruise Control Switch....................................................................................................................... 6-78
Headlight Switch .............................................................................................................................. 6-80
Turn Signal Switch ........................................................................................................................... 6-82
Hazard Switch.................................................................................................................................. 6-84
Parking Brake Switch ....................................................................................................................... 6-86
Horn Button...................................................................................................................................... 6-88
Contactors........................................................................................................................................ 6-89
Seat Switch ...................................................................................................................................... 6-91
Windshield Wiper/Washer Switch (Groundsmaster 5910)................................................................ 6-92
Air Conditioning Switch (Groundsmaster 5910) ............................................................................... 6-94
Fan Speed Switch (Groundsmaster 5910) ....................................................................................... 6-95
Work Light and Beacon Switches (Groundsmaster 5910 − Optional) ............................................... 6-97
Groundsmaster ® 5900 & 5910
16227SL Rev B
Electrical System
Page 6-1
Chapter 6
Electrical System