Service Manual
Table Of Contents
- Title Page
- Revision History
- Reader Comments
- Preface
- Table Of Contents
- 1 - Safety
- 2 - Product Records and Maintenance
- 3 - Gasoline Engine
- 4 - Diesel Engine
- 5 - Hydraulic System
- Table of Contents
- Specifications
- General Information
- Operator's Manuals
- Check Hydraulic Fluid Level
- Pushing Traction Unit
- Relieving Hydraulic System Pressure
- Opening Electrical Circuit to Cutting Units
- Traction Circuit Component Failure
- Hydraulic Hoses
- Hydraulic Hose and Tube Installation (O-Ring Face Seal Fitting)
- Hydraulic Fitting Installation (SAE Straight Thread O-Ring Fitting into Component Port)
- Hydraulic Schematic
- Hydraulic Flow Diagrams
- Special Tools
- Troubleshooting
- Testing
- Charge Relief Valve Pressure Test (Using Pressure Gauge)
- Piston (Traction) Pump Flow Test (Using Tester with Flowmeter and Pressure Gauge)
- Wheel Motor Efficiency Test (Using Tester with Flowmeter and Pressure Gauge)
- Steering/Lift Relief Valve Pressure Test (Using Pressure Gauge)
- Lower Cutting Units Relief Valve (RV) Pressure Test (Using Pressure Gauge)
- Steering/Lift Circuit Gear Pump Flow Test (Using Tester with Flowmeter and Pressure Gauge)
- Power Steering Valve Test
- Adjustments
- Service and Repairs
- General Precautions for Removing and Installing Hydraulic System Components
- Flush Hydraulic System
- Filtering Closed-Loop Traction Circuit
- Hydraulic System Start-up
- Gear Pump
- Gear Pump Service
- Piston (Traction) Pump Neutral Assembly
- Piston (Traction) Pump
- Piston (Traction) Pump Service
- Piston Pump Crush Ring Replacement
- Front Wheel Motors
- Rear Wheel Motor (Optional 3WD)
- Wheel Motor Service
- Lift Cylinders
- Lift Cylinder Service
- Lift Control Manifold
- Lift Control Manifold Service
- Control Manifold Cartridge Valve Service
- Power Steering Valve
- Power Steering Valve Service
- Steering Cylinder
- Steering Cylinder Service
- Hydraulic Reservoir
- Leak Detector Tank (Machines Equipped with Optional Turf GuardianTM Leak Detector System)
- Leak Detector Solenoid Valve Assembly (Machines Equipped with Optional Turf GuardianTM Leak Detector System)
- 6 - Electrical System
- Table of Contents
- General Information
- Electrical System Operation
- Turf GuardianTM Leak Detector System Operation (Optional Kit)
- Special Tools
- InfoCenter Display (Serial Number Above 312000000)
- Troubleshooting
- Electrical System Quick Checks
- Adjustments
- Component Testing
- Ignition Switch (Serial Number Below 312000000)
- Ignition Switch (Serial Number Above 312000000)
- Engine Oil Pressure Indicator Light (Greensmaster 3320 with Serial Number Below 312000000)
- Indicator Lights (Greensmaster 3420 with Serial Number Below 312000000)
- Fuse Block (Greensmaster 3320)
- Fuse Block (Greensmaster 3420 with Serial Number Below 312000000)
- Fuse Block (Greensmaster 3420 with Serial Number Above 312000000)
- Electric Reel Drive System (48 Volt DC) Fuses
- Fusible Links
- Hour Meter
- Seat Switch
- Neutral and Mow Switches
- Parking Brake Switch
- Joystick Raise and Lower Switches
- Backlap Switch
- Electric Reel Contactor
- Reel Speed Potentiometer (Serial Number Below 312000000)
- Toro Electronic Controller (TEC)
- Hydraulic Solenoid Valve Coils
- Main Power, Electric Cutting Reels Enable, Charge Circuit (Greensmaster 3320), Glow (Greensmaster 3420) and Fan (Greensmas...
- Kill (Greensmaster 3320) and Start (Greensmaster 3420) Relays
- CAN-bus Termination Resistors
- Electric Reel Circuit Protection Diode
- Location ID Module
- Cutting Reel Motors
- Starter Solenoid (Greensmaster 3320)
- Fuel Pump (Greensmaster 3420)
- Fuel Solenoid (Greensmaster 3420)
- Temperature Sender (Greensmaster 3420)
- Diode Assembly (Greensmaster 3420)
- Turf GuardianTM Leak Detector Oil Level Sensor (If Equipped)
- Turf GuardianTM Leak Detector Alarm (If Equipped)
- Service and Repairs
- Verify Interlock System Operation
- 12 Volt Battery Care
- 12 Volt Battery Storage
- 12 Volt Battery Service
- Electric Reel Drive System (48 Volt DC) Battery Pack Service
- Generator Drive Belt (Greensmaster 3320)
- Generator Drive Belt (Greensmaster 3420)
- Generator Assembly (Greensmaster 3320)
- Generator Assembly (Greensmaster 3420)
- Generator Assembly Service
- Cutting Reel Motor
- Cutting Reel Motor Service
- 7 - Chassis
- 8 - DPA Cutting Units
- 9 - Groomer
- Table of Contents
- Specifications
- General Information
- Troubleshooting
- Adjustments
- Service and Repairs
- Groomer Belt Replacement (Forward Rotating Groomer Drive)
- Groomer Cover (Counter Rotating Groomer Drive)
- Grooming Reel (Forward Rotating Groomer Drive)
- Grooming Reel (Counter Rotating Groomer Drive)
- Grooming Reel Service
- Grooming Reel Bearing Replacement
- Idler Assembly (Forward Rotating Groomer Drive)
- Idler Assembly (Counter Rotating Groomer Drive)
- Lift Arm Assembly
- Groomer Brush
- 10 - Universal Groomer (Optional)
- 11 - Foldout Drawings
- Table of Contents
- Hydraulic Schematic
- Electrical Schematic GR3320
- Electrical Schematic GR3320
- Greensmaster 3320Electrical Schematic(Serial Numbers 314000001 to 316000000)
- Greensmaster 3320Electrical Schematic(Serial Numbers 316000001 to 403410000)
- Greensmaster 3320Electrical Schematic(Serial Numbers above 403410001)
- Electrical Schematic GR3420
- Electrical Schematic GR3420
- Greensmaster 3420Electrical Schematic(Serial Numbers 314003001 to 316000000)
- Greensmaster 3420Electrical Schematic(Serial Numbers 316000001 to 403420000)
- Greensmaster 3420Electrical Schematic(Serial Numbers above 403420001)
- E−Reels Electrical Schematic
- E−Reels Electrical Schematic
- Wire Harness Drawing GR3320
- Wire Harness Diagram GR3320
- Wire Harness Drawing GR3320
- Wire Harness Diagram GR3320
- Wire Harness DrawingGreensmaster 3320(Serial Numbers 316000001 to 403410000)
- Wire Harness DrawingGreensmaster 3320(Serial Numbers 316000001 to 403410000)
- Wire Harness DrawingGreensmaster 3320(Serial Numbers 403410001 to 406000000)
- Wire Harness DiagramGreensmaster 3320(Serial Numbers 403410001 to 406000000)
- Wire Harness DrawingGreensmaster 3320(Serial Numbers above 406000001)
- Wire Harness DiagramGreensmaster 3320(Serial Numbers above 406000001)
- Wire Harness Drawing GR3420
- Wire Harness Diagram GR3420
- Wire Harness Drawing GR3420
- Wire Harness Diagram GR3420
- Wire Harness DrawingGreensmaster 3420(Serial Numbers 314000001 to 316000000)
- Wire Harness DiagramGreensmaster 3420(Serial Numbers 314000001 to 316000000)
- Wire Harness DrawingGreensmaster 3420(Serial Numbers 316000001 to 316000500)
- Wire Harness DiagramGreensmaster 3420(Serial Numbers 316000001 to 316000500)
- Wire Harness DrawingGreensmaster 3420(Serial Numbers 316000501 to 403420000)
- Wire Harness DiagramGreensmaster 3420(Serial Numbers 316000501 to 403420000)
- Wire Harness DrawingGreensmaster 3420(Serial Numbers 403420000 to 405700000)
- Wire Harness DiagramGreensmaster 3420(Serial Numbers 403420000 to 405700000)
- Wire Harness DrawingGreensmaster 3420(Serial Numbers above 405700001)
- Wire Harness DiagramGreensmaster 3420(Serial Numbers above 405700001)
- E−Reels Wire Harness Drawing
- E−Reels Wire Harness Diagram
- E−Reels Wire Harness Drawing
- E−Reels Wire Harness Diagram
- E−Reels Wire Harness Drawing
- E−Reels Wire Harness Diagram
Greensmaster 3320/3420 Page 6 − 51 Electrical System
Neutral and Mow Switches
The neutral and mow switches are normally open prox-
imity switches that mount to the console assembly (Fig.
57). The sensing plate for these switches is a tab on the
functional control lever. The Toro Electronic Controller
(TEC) monitors the operation of the neutral and mow
switches.
When the functional control lever is in the neutral posi-
tion, the tab on the lever is positioned near the target end
of the neutral switch causing the switch to close. The tab
on the functional control lever is moved away from the
neutral switch when the lever is in either the mow or
transport position causing the switch to be in its normal
open state.
When the functional control lever is in the mow position,
the tab on the lever is positioned near the target end of
the mow switch causing the switch to close. The tab on
the functional control lever is moved away from the mow
switch when the lever is in either the neutral or transport
position causing the switch to be in its normal open
state.
Testing
1. Park machine on level surface, lower cutting units,
stop engine and remove key from ignition switch.
2. Before disconnecting the neutral or mow switch for
testing, the switch and its circuit wiring should be tested
as a TEC electrical input using the Hand Held Diagnostic
Display (see Hand Held Diagnostic Display in the Trou-
bleshooting section of this chapter) or InfoCenter Dis-
play (see InfoCenter Display in this chapter). If input
testing verifies that the switch and circuit wiring are func-
tioning correctly, no further switch testing is necessary.
If, however, input testing determines that the switch and
circuit wiring are not functioning correctly, proceed with
the following switch testing procedure.
3. Remove console cover from console assembly to
gain access to neutral and mow switches (see Control
Console Disassembly in the Service and Repairs sec-
tion of Chapter 7 − Chassis). Locate switch that is to be
tested (Fig. 57).
4. Turn ignition switch to the RUN position (do not start
engine) and check LED on cable end of switch.
A. The neutral switch LED should be illuminated
only when the functional control lever is in the neu-
tral position. The neutral switch LED should not be
illuminated when the functional control lever is in the
either the mow or transport position.
B. The mow switch LED should be illuminated only
when the functional control lever is in the mow posi-
tion. The mow switch LED should not be illuminated
when the functional control lever is in the either the
neutral or transport position.
5. If the tested switch LED did not function correctly:
A. Make sure that switch is properly adjusted (see
Neutral and Mow Switches in the Adjustments sec-
tion of this chapter). If necessary, adjust switch and
return to step 4 above.
B. Make sure ignition switch is OFF and disconnect
the switch connector from the machine wire harness.
C. Using a multimeter, verify that the machine wire
harness connector terminal for black wire is closed
(continuity) to ground.
D. Turn ignition switch to the RUN position (do not
start engine) and verify with a multimeter that ma-
chine wire harness connector terminal for pink wire
has system voltage (12 VDC) present.
E. If black wire is closed to ground, pink wire has
system voltage present and switch LED did not func-
tion correctly (step 4 above), replace tested switch.
Adjust switch after installation (see Neutral and Mow
Switches in the Adjustments section of this chapter).
6. After switch testing is complete, make sure that
switch connector is plugged into machine wire harness.
Install console cover (see Control Console Assembly in
the Service and Repairs section of Chapter 7 − Chas-
sis).
Figure 57
1. Functional lever tab
2. Mow switch
3. Neutral switch
2
1
3
Electrical
System