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
Rev. A
Groundsmaster 7200/7210Page 5 - 16Electrical System
Parking Brake Switch (Serial Number Below 310000000)
The parking brake switch on machines with serial num-
ber below 310000000 is a normally closed switch that
opens when the parking brake is applied. The switch is
located under the front panel (Fig. 16 and 17).
The Standard Control Module (SCM) monitors the sta-
tus of the parking brake switch. If the ignition switch is
in the ON p osition and the parking brake is disengaged,
the SCM Parking Brake Off input LED should be illumi-
nated. The parking brake switch and circuit wiring
should be tested as a SCM input before performing the
following testing procedure.
Testing
1. Before disconnecting the parking brake 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 brake switch and circuit
wiring are functioning correctly, no further brake switch
testing is necessary.
3. If the SCM determines that the brake switch and cir-
cuit wiring are not functioning correctly, test switch as
follows:
A. Remove front panel to access parking brake
switch.
B. Make sure ignition switch is in the OFF position.
Locate parking brake switch for testing.
C. Disconnect machine wire harness electrical con-
nector from the parking brake switch.
D. Check the continuity of the switch by connecting a
multimeter (ohms setting) across the connector ter-
minals.
E. When the switch plunger is extended there
should be continuity (closed) between the switch ter-
minals.
F. When the switch plunger is depressed, there
should be no continuity (open) between the switch
terminals.
G. Replace brake switch if necessary.
H. If the brake switch tests correctly and a circuit
problem still exists, check wire harness (see Electri-
cal Schematics and Circuit Drawings in Chapter 8 -
Foldout Diagrams).
I. Connect switch connector to machine wire har-
ness. Check brake switch operation.
1. Front panel 2. Washer head screw
Figure 16
1. Brake lever assembly 2. Brake switch
Figure 17
2
1
1. Brake shaft tab
2. Parking brake switch
3. Screw
Figure 18
0.015” TO 0.045”
(0.4 to 1.0 mm)
DISTANCE
BRAKE APPLIED
BETWEEN TAB
AND SWITCH
BODY WITH