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Rev. A
Greensmaster 3320/3420 Page 6 - 1 Electrical S ystem
Chapter 6
Electrical System
Table of Contents
GENERAL INFORMATION 2.....................
Operator ’s Manual 2..........................
Toro Electronic Controller (TEC) 2..............
CAN- bus Communications 2...................
Opening Electrical Circuit to Cutting Units 3......
Electrical Drawings 3..........................
ELECTRICAL SYSTEM OPERATION 4............
12 Volt DC System Operation 4.................
Electric Reel Drive System (48 Volt DC)
Operation 4................................
TURF GUARDIAN
TM
LEAK DETECTOR
SYSTEM OPERATION 6.......................
SPECIAL TOOLS 8.............................
INFOCENTER DISPLAY (SERIAL NUMBER ABOVE
312000000) 12................................
TROUBLESHOOTING 20........................
Diagnostic Light (Serial Number Below
312000000) 20.............................
Fault Codes 22...............................
Hand Held Diagnostic Display 26...............
Starting Problems 32..........................
General Run & Transport Problems 34...........
Cutting Unit Operating Problems 35.............
ELECTRICAL SYSTEM QUICK CHECKS 37.......
12 Volt Battery Test (Open Circuit) 37............
Engine Charging System Test 37...............
Glow Plug System (Greensmaster 3420) 37......
ADJUSTMENTS 38.............................
Parking Brake Switch 38.......................
Neutral and Mow Switches 39..................
COMPONENT TESTING 40......................
Ignition Switch (Serial Number Below
312000000) 40.............................
Ignition Switch (Serial Number Above
312000000) 41.............................
Engine Oil Pressure Indicator Light
(Greensmaster 3320 with Serial Number Below
312000000) 42.............................
Indicator Lights (Greensmaster 3420 with
Serial Number Below 312000000) 43..........
Fuse Block (Greensmaster 3320) 44............
Fuse Block (Greensmaster 3420 with Serial
Number Below 312000000) 45................
Fuse Block (Greensmaster 3420 with Serial
Number Above 312000000) 46................
Electric Reel Drive System (48 Volt DC) Fuses 47.
Fusible Links 48..............................
Hour Meter 49................................
Seat Switch 50...............................
Neutral and Mow Switches 51..................
Parking Brake Switch 52.......................
Joystick Raise and Lower Switches 53...........
Backlap Switch 54............................
Electric Reel Contactor 55.....................
Reel Speed Potentiometer (Serial Number Below
312000000) 56.............................
Toro Electronic Controller (TEC) 57.............
Hydraulic Solenoid Valve Coils 58...............
Main Power, Electric Cutting Reels Enable, Charge
Circuit (Greensmaster 3320), Glow
(Greensmaster 3420) and Fan (Greensmaster
3420) Relays 60............................
Kill (Greensmaster 3320) and Start
(Greensmaster 3420) Relays 62..............
CAN- bus Termination Resistors 63.............
Electric Reel Circuit Protection Diode 64.........
Location ID Module 65.........................
Cutting Reel Motors 66........................
Starter Solenoid (Greensmaster 3320) 67.
.......
Fuel Pump (Greensmaster 3420) 68.............
Fuel Solenoid (Greensmaster 3420) 69..........
Temperature Sender (Greensmaster 34 20) 70....
Diode Assembly (Greensmaster 3420) 71........
Turf Guardian
TM
Leak Detector Oil Level Sensor
(If Equipped) 72.............................
Turf Guardian
TM
Leak Detector Alarm
(If Equipped) 73.............................
SERVICE AND REPAIRS 74.....................
Verify Interlock System Operation 74............
12 Volt Battery Care 75........................
12 Volt Battery Storage 75.....................
12 Volt Battery Service 76......................
Electric Reel Drive System (48 Volt DC) Battery
Pack Service 80............................
Generator Drive Belt (Greensmaster 3320) 84....
Generator Drive Belt (Greensmaster 3420) 86....
Generator Assembly (Greensmaster 3320) 88....
Generator Assembly (Greensmaster 3420) 90....
Generator Assembly Service 92................
Cutting Reel Motor 96.........................
Cutting Reel Motor Service 98..................
Electrical
System