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 Page 6 – 9 Chassis
IMPORTANT: If wheel hub removal is necessary, do
not hit wheel hub or hub puller with a hammer dur-
ing removal. Hammering may cause damage to the
hydraulic wheel motor or wheel hub.
8. If necessary, use wheel hub puller to loosen wheel
hub from the wheel motor shaft. Remove loosened lock
nut and wheel hub from wheel motor. Remove woodruff
key from the shaft.
Installation (Fig. 4)
1. If wheel hub was removed:
A. Make sure that wheel hub and wheel motor shaft
are cleaned thoroughly.
B. Install key to the slot on the wheel motor shaft.
Slide wheel hub onto the shaft.
C. Secure wheel hub to the motor shaft with lock nut.
2. Place two (2) hardened washers on brake mounting
screws (Figs. 5 and 6).
IMPORTANT: When installing brake to brake sup-
port, take care to not get Loctite on brake pad sur-
face.
3. Apply Loctite #271 (or equivalent) to threads of brake
mounting screws. Secure parking brake to brake sup-
port with two (2) lock nuts. Torque lock nuts from 35 to
40 ft–lb (48 to 54 N–m).
4. Place brake support (with parking brake assembly
attached) to wheel hub disc and frame making sure that
disc is between the two (2) stators (brake pads) in the
brake assembly.
5. Place four (4) cap screws and flange nuts in mount-
ing holes of brake support and frame but do not fully
tighten.
6. Adjust position of brake support so that the clear-
ance between the wheel hub disc and both springs in the
parking brake (Fig. 7) is from 0.030” to 0.070” (0.8 to
1.7 mm). When clearance is correct, fully tighten fasten-
ers.
7. Attach brake rod assembly to parking brake lever
with flat washer and retaining ring.
8. Secure wheel to machine with five (5) lug nuts.
9. Lower wheel to ground. Torque wheel lug nuts in a
crossing pattern from 75 to 85 ft–lb (102 to 115 N–m).
10.If wheel hub was removed, apply parking brake and
torque lock nut (item 6) from 300 to 400 ft–lb (407 to 542
N–m). Release parking brake.
11. Check parking brake and brake switch operation.
1. Parking brake assembly
2. Lock nut
3. Brake support
4. Hardened washer
Figure 5
Loctite #271
35 to 40 ft–lb
(48 to 54 N–m)
2
3
4
1
1. Wheel hub
2. Parking brake assembly
3. Lock nut
4. Brake support
5. Hardened washer
Figure 6
2
3
4
5
1
1. Brake swivel
2. Caliper brake lever
3. Wheel hub disc
4. Hardened washer
5. Clearance
Figure 7
3
1
4
2
5
Chassis