Service Manual
Table Of Contents
- Title Page
- Revision History
- Reader Comments
- Preface
- Table Of Contents
- 1 - Safety
- 2 - Product Records and Maintenance
- 3 - Kubota Diesel Engine
- 4 - Hydraulic System
- Specifications
- General Information
- Hydraulic Schematics
- Hydraulic Flow Diagrams
- Special Tools
- Troubleshooting
- Testing
- Traction System Operation Testing
- Charge Relief Valve Pressure Test (Using Pressure Gauge)
- Transmission Piston Pump Flow Test (Using Tester with Pressure Gauges and Flow Meter)
- Traction Relief Valve Pressure Test (Using Tester with Pressure Gauges and Flow Meter)
- Wheel Motor Efficiency Test (Using Tester with Pressure Gauges and Flow Meter)
- PTO Pressure Valve Test (Using Pressure Gauge)
- Implement Relief Pressure Test (Using Pressure Gauge)
- Gear Pump Flow Test (Using Tester with Pressure Gauges and Flow Meter)
- Lift Cylinder Internal Leakage Test
- Service and Repairs
- General Precautions for Removing and Installing Hydraulic System Components
- Flush Hydraulic System
- Charge Hydraulic System
- Hydraulic Tank
- Wheel Motors
- Wheel Motor Service
- Transmission
- Transmission Service
- Gear Pump
- Gear Pump Service
- Manual Lift Control Valve (SN Below 313000000)
- Manual Lift Control Valve Service (SN Below 313000000)
- Lift Control Manifold (SN Above 313000000)
- Lift Control Manifold Service (SN Above 313000000)
- Polar TracTM Hydraulic Control Valve
- Polar TracTM Hydraulic Control Valve Service
- Lift Cylinder
- Lift Cylinder Service
- Polar TracTM Lift Cylinder
- Polar TracTM Lift Cylinder Service
- Oil Cooler
- 5 - Electrical System
- Electrical Schematics and Diagrams
- Special Tools
- Troubleshooting
- Electrical System Quick Checks
- Component Testing
- Ignition Switch
- Indicator Lights
- Hour Meter
- PTO Switch
- Neutral Switches
- Seat Switch
- Parking Brake Switch (SN Below 310000000)
- Parking Brake Switch (SN Above 310000000)
- Standard Control Module
- Standard Control Module Logic Chart
- PTO Solenoid Valve Coil
- Lift Control Manifold Solenoid Valve Coils (SN Above 313000000)
- Fusible Link Harness
- Diode Assembly
- Glow Relay
- High Temperature Warning Switch
- High Temperature Shutdown Switch
- Dual Temperature Switch (Polar TracTM Machines)
- Deck Lift/Lower Switch (SN Above 313000000)
- Fuel Pump
- Fuel Stop Solenoid
- Glow Controller
- Service and Repairs
- 6 - Chassis
- 7 - Cutting Deck
- 8 - Foldout Diagrams
- Electrical Drawing Designations
- Hydraulic Schematics
- Hydraulic Schematic (SN Below 313000000)
- Hydraulic Schematic (SN Below 313000000) with Rear Attach Lift Kit
- Hydraulic Schematic (SN Below 313000000) with Polar Trac Installed)
- Hydraulic Schematic (SN Below 313000000) with Polar Trac and Rear Attach Lift Kit
- Hydraulic Schematic (SN From 313000001 to 314999999)
- Hydraulic Schematic (SN Above 315000000)
- Electrical Schematics
- Circuit Diagrams
- Wire Harness
Groundsmaster 7200/7210Page 5 - 14Electrical System
Neutral Switches
The Groundsmaster 7200 and 7210 use two (2), identi-
cal neutral switches. These neutral switches are nor-
mally open and close when the traction levers are in the
neutral locked position. The neutral switches are lo-
cated under the front panel beneath the operator seat
(Figs. 12 and 13).
The Standard Control Module (SCM) monitors the sta-
tus of the neutral switches. If the ignition switch is in the
ON position and the traction levers are both in the neu-
tral locked position, the SCM Neutral input LED should
be illuminated. The switches are connected in series so
both of the switches must be closed for the neutral input
to be completed for the SCM.
Testing
1. Before disconnecting a neutral switch for testing, the
switch and its circuit wiring should be tested as a SCM
input (see Standard Control Module in this section).
2. If the SCM verifies that the neutral switches and cir-
cuit wiring are functioning correctly, no further switch
testing is necessary.
3. If the SCM determines that the neutral switch and cir-
cuit wiring are not functioning correctly, test each neu-
tral switch as follows:
A. Make sure ignition switch is in the OFF position.
Locate neutral switches for testing.
B. Disconnect machine wire harness electrical con-
nector from the neutral switch.
C. Check the continuity of the switch by connecting a
multimeter (ohms setting) across the connector ter-
minals.
D. When the switch plunger is extended there
should be no continuity (open) between the switch
terminals.
E. When the switch plunger is depressed, there
should be continuity (closed) between the switch ter-
minals.
F. Replace switch if necessary.
G. If the neutral switch tests correctly and a circuit
problem still exists, check wire harness (see Electri-
cal Schematics and Circuit Drawings in Chapter 8 -
Foldout Diagrams).
H. Connect machine wire harness connector to neu-
tral switch. Check neutral switch operation.
1. Front panel 2. Washer head screw
Figure 12
1. Traction lever (LH) 2. Neutral switch
Figure 13
2
1
1. Traction lever
2. Neutral switch
3. Screw
Figure 14
0.015” TO 0.045”
(0.4 to 1.0 mm)
DISTANCE
LEVER IN
BETWEEN LEVER
AND SWITCH
BODY WITH
NEUTRAL LOCK