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 7200/7210 Hydraulic SystemPage 4 – 47
8. Put clean plugs in disconnected hydraulic hoses and
fittings to prevent system contamination.
9. Remove two (2) washer head screws and tank sup-
port that retain hydraulic tank to frame.
10.Remove hydraulic tank toward front of machine.
11. Inspect foam strips under hydraulic tank. Replace
strips if damaged.
12.As needed, remove fittings from hydraulic tank using
Figure 29 as a guide. Discard and replace any removed
O–rings.
Hydraulic Tank Inspection (Fig. 29)
1. Clean hydraulic tank and suction strainer with sol-
vent.
2. Inspect hydraulic tank for leaks, cracks or other dam-
age.
Hydraulic Tank Installation (Fig. 29)
1. If suction strainer was removed from hydraulic tank,
place new, lubricated O–ring on strainer. Thread strain-
er into tank and torque from 60 to 66 ft–lb (82 to 90
N–m).
2. Attach removed fittings with new, lubricated O–rings
to hydraulic tank using Figure 29 as a guide (see Hy-
draulic Fitting Installation in the General Information
section of this chapter). Tighten fittings to torque values
identified in Figure 29.
3. Position hydraulic tank to machine. Secure tank to
frame with tank support and two (2) washer head
screws.
4. Remove plugs that were installed to hydraulic hoses
and fittings during the removal procedure.
5. Attach hydraulic hoses to fittings on hydraulic tank
using labels placed during removal (see Hydraulic Hose
and Tube Installation in the General Information section
of this chapter).
6. Install brake handle to machine (see Parking Brake
Assembly in the Service and Repairs section of Chapter
6 – Chassis). Make sure that parking brake switch op-
eration is correct after brake handle is installed.
7. Secure front cover to machine (Fig. 30).
8. Fill hydraulic tank with new hydraulic fluid.
9. Install operator seat and seat base (see Operator
Seat Installation in the Service and Repair section of
Chapter 6 – Chassis).
10.Operate machine. Check hydraulic oil level and ad-
just if necessary. Check hydraulic components for leaks.
Tighten any loose connections.
1. Screw (3 used)
2. Front cover
3. Frame
4. Foam strip (3 used)
Figure 30
2
1
3
4
FRONT
RIGHT
1. Hydraulic tank
2. Transmission
3. Gear pump
Figure 31
1
2
3
FRONT
Hydraulic
System