Toro Groundsmaster 4500-D Series Service Manual page 283

Table of Contents
General Information .............................................................................................................................. 6-2
Operator's Manual.............................................................................................................................. 6-2
Electrical Drawings ............................................................................................................................ 6-2
Toro Electronic Controllers (TEC)....................................................................................................... 6-3
Engine Electronic Control Unit (ECU) ................................................................................................ 6-5
Yanmar Engine Electrical Components.............................................................................................. 6-7
CAN−bus Communications................................................................................................................ 6-7
Electrical Drawings ............................................................................................................................ 6-7
InfoCenter Display ............................................................................................................................. 6-8
Adjustments......................................................................................................................................... 6-19
Traction Pedal Adjustment ............................................................................................................... 6-19
Traction Pedal Position Sensor Calibration ...................................................................................... 6-21
Electrical System Quick Checks .......................................................................................................... 6-23
Battery Test (Open Circuit)............................................................................................................... 6-23
Charging System Test ...................................................................................................................... 6-23
Check Operation of Interlock Switches............................................................................................. 6-24
Component Testing.............................................................................................................................. 6-25
Ignition Switch.................................................................................................................................. 6-26
Fuses ............................................................................................................................................... 6-27
Fusible Link Harness........................................................................................................................ 6-30
PTO Switch ...................................................................................................................................... 6-31
Auto/Low Mode, Engine Speed Request and Cutting Deck Lift Switches ......................................... 6-33
Headlight Switch .............................................................................................................................. 6-35
Cruise Control Switch....................................................................................................................... 6-36
Seat Switch ...................................................................................................................................... 6-38
Parking Brake Switch ....................................................................................................................... 6-39
Cutting Deck Position Switches........................................................................................................ 6-41
Relays with Four (4) Terminals......................................................................................................... 6-43
Relays with Five (5) Terminals ......................................................................................................... 6-45
Traction Pedal Position Sensor ........................................................................................................ 6-47
Toro Electronic Controllers (TEC)..................................................................................................... 6-48
Hydraulic Solenoid Valve Coils......................................................................................................... 6-52
Piston (Traction) Pump Control Solenoid Coils................................................................................. 6-54
Hydraulic Oil Temperature Sender ................................................................................................... 6-56
Fuel Pump (Models 30893, 30893TE, 30899 and 30899TE)............................................................ 6-58
Fuel Pump (Models 30885 and 30887) ............................................................................................ 6-60
CAN−bus Termination Resistor ........................................................................................................ 6-62
Diode Assemblies ............................................................................................................................ 6-63
Resistor Assembly ........................................................................................................................... 6-64
Fan Speed Switch (Machines with Two−Post ROPS Extension Operator Fan
Kit).................................................................................................................................................... 6-65
Resistor Module (Machines with Two−Post ROPS Extension Operator Fan Kit)............................... 6-67
Service and Repairs ........................................................................................................................... 6-69
Battery Care..................................................................................................................................... 6-69
Battery Storage ................................................................................................................................ 6-70
Battery Service................................................................................................................................. 6-71
Groundsmaster ® 4500-D/4700-D
19245SL Rev A
Electrical System
Page 6-1
Chapter 6
Electrical System