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
- Kubota Diesel Engine Service Manual
- 4 - Hydraulic System
- Specifications
- General Information
- Hydraulic Schematic
- Hydraulic Flow Diagrams
- Special Tools
- Troubleshooting
- Testing
- Traction Circuit Charge Pressure (Using Pressure Gauge)
- Traction Circuit Relief Pressure (Using Pressure Gauge)
- Counterbalance Pressure (Using Pressure Gauge)
- Rear Traction Circuit (RV) Relief Pressure (Using Pressure Gauge)
- Traction Circuit Reducing Valve (PR) Pressure (Using Pressure Gauge)
- Cutting Deck Circuit Pressure (Using Pressure Gauge)
- PTO Relief Pressure (Using Tester with Pressure Gauges and Flow Meter)
- Cutting Deck Motor Case Drain Leakage (Using Tester with Pressure Gauges and Flow
- Cutting Deck Gear Pump Flow
- Steering Circuit Relief Pressure
- Lift/Lower Circuit Relief Pressure
- Steering and Lift/Lower Gear Pump Flow
- Engine Cooling Fan Circuit
- Engine Cooling Fan Circuit Gear Pump Flow
- Adjustments
- Service and Repairs
- General Precautions for Removing and Installing Hydraulic System Components
- Check Hydraulic Lines and Hoses
- Flush Hydraulic System
- Charge Hydraulic System
- Hydraulic Reservoir
- Hydraulic Oil Cooler
- Gear Pump
- Gear Pump Service
- Traction Circuit
- Piston (Traction) Pump
- Piston (Traction) Pump Service
- Rear Axle Motor
- Front Wheel Motor
- Rear Axle and Front Wheel Motor Service
- 4WD Manifold
- 4WD Manifold Service
- Traction (Flow Divider) Manifold
- Traction (Flow Divider) Manifold Service
- Filter Manifold
- Filter Manifold Service
- Steering and Cooling Fan Circuits
- Steering Valve
- Steering Valve Service
- Steering Cylinder
- Steering Cylinder Service
- Engine Cooling Fan Motor
- Engine Cooling Fan Motor Service
- Fan Drive Manifold
- Fan Drive Manifold Service
- PTO Circuit
- Cutting Deck Motor
- Cutting Deck Motor Service
- PTO Manifold
- PTO Manifold Service
- Lift/Lower Circuit
- Lift/Lower Control Valve
- Lift/Lower Control Valve Service
- Side Deck Lift Cylinder
- Front Deck Lift Cylinder
- Lift Cylinder Service
- Counterbalance Manifold
- Counterbalance Manifold Service
- Eaton Piston Pump Repair Information
- Eaton Piston Motor Repair Information
- 5 - Electrical System
- General Information
- Special Tools
- Troubleshooting
- Electrical System Quick Checks
- Component Testing
- Ignition Switch
- Fuses
- Warning Lights
- PTO Switch
- Alarm Silence and Temperature Override Switches
- Transport / 4WD Switch
- Flow Divider Switch
- Cooling Fan Switch
- Seat Switch
- Parking Brake Switch
- Hour Meter
- Audio Alarm
- Glow and Power Relays
- Start, Engine Shutdown, Seat, PTO, PTO Overtemp, Alarm and Over Temperature Relays
- Hydraulic Valve Solenoids
- TEC-5002 Controller
- Fuel Sender
- Fuel Gauge
- Fuel Pump
- Glow Controller
- Temperature Sender
- Dual Temperature Switch
- Temperature Gauge
- Traction Neutral Switch
- Diode Assemblies
- Diode Circuit Board
- Fusible Link Harness
- Cutting Deck Position Switch
- Engine Coolant and Hydraulic Oil Temperature Senders
- Service and Repairs
- 6 - Axles, Planetaries and Brakes
- 7 - Chassis
- 8 - Cutting Decks
- 9 - Foldout Drawings
- Hydraulic Schematic
- Electrical Schematic
- Glow Plug Circuits
- Crank Circuits
- Run (Transport) Circuits
- Run (Mow) Circuits
- High Temperature Warning Cuircuits
- Over Temperature Shutdown Circuits
- Engine Wire Harness
- Engine Wire Harness Diagram
- Front Wire Harness
- Front Wire Harness Diagram
- Console Wire Harness
- Console Wire Harness DIagram
Groundsmaster 4000--DPage 5 -- 16Electrical System
Parking Brake Switch
Theswitch usedforthe parkingbrake is anormally open
switch that is located under the steering tower cover
(Fig. 24). When the parking brake is not applied, the
parking brake pawl depresses the switch plunger to
close the switch. When the parking brake is applied, the
parking brake pawl is positioned away from the switch
plunger so the switch is in its normal, open state.
Testing
1. Make sure the engine is off. Locate parking brake
switch for testing.
2. Disconnect wire harness connector from the switch.
3. Check the continuity of the switch by connecting a
multimeter (ohms setting) across the connector termi-
nals.
4. When the switch plunger is extended there should
not be continuity between the s witch terminals.
5. Whentheswitch plunger is depressed, thereshould
be continuity between the switch terminals.
6. After testing, connect switch connector to wire har-
ness.
1. Parking brake switch
2. Parking brake rod
3. Parking brake pawl
Figure 24
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3
2