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 – 79
11. Remove gear pump from transmission. Remove and
discard O–ring (item 3). Locate and remove coupler
from transmission or gear pump shaft.
12.If necessary, remove hydraulic fittings from pump.
Remove and discard O–rings from fittings.
Installation (Fig. 94)
1. If hydraulic fittings were removed from pump, lubri-
cate and install new O–rings to fitting. Tighten fittings to
torque values identified in Figure 94 (see Hydraulic Fit-
ting Installation in the General Information section of this
chapter).
2. Slide coupler onto transmission shaft. Lubricate O–
ring (item 3) with grease and position on flange of gear
pump.
IMPORTANT: Position gear pump to the transmis-
sion so that the gear pump suction port is facing up.
3. Position gear pump to the transmission and secure
with two (2) cap screws and lock washers.
4. Move hydraulic tank toward rear of machine to its
proper position and secure with reservoir support (see
Hydraulic Tank Installation in this section).
5. Install parking brake handle to machine (see Parking
Brake Assembly in the Service and Repairs section of
Chapter 6 – Chassis). Make sure that parking brake
switch operation is correct after brake handle is
installed.
6. Remove plugs that were installed to hydraulic hoses
and fittings during the removal procedure. Attach hy-
draulic hoses to fittings on gear pump and hydraulic tank
using labels placed during removal (see Hydraulic Hose
and Tube Installation in the General Information section
of this chapter).
7. Fill hydraulic tank with new hydraulic oil.
8. Install operator seat and seat base (see Operator
Seat Installation in the Service and Repair section of
Chapter 6 – Chassis).
1. Hydraulic tank
2. Transmission
3. Gear pump
4. RH wheel motor
5. LH wheel motor
Figure 95
1
2
3
FRONT
4
5
Hydraulic
System