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
Page 8 -- 8
Hydraulic Schematic
Groundsmaster 7200/7210
All solenoids are
shown as de--energized.
(With Optional Hydraulic Kits Shown)
Serial Number Above 315000000
OPTIONAL POLAR TRAC KIT
REPLACES STANDARD DECK LIFT
VALVE IN WINTER CONFIGURATION
CUSTOMER
SUPPLIED
ATTACHMENT
C
D
PB
P
T
OPTIONAL WINTER
KITLIFTCYLINDER
BORE: 2.25”
STROKE: 2.16”
ROD: 1.25”
EXTEND TO LIFT
A
B
ENGINE RATED SPEED
KUBOTA 3250 RPM
4000 PSI
.031”
19.0
CID
TOW
VALVE
1.1 CID
1.1 CID
PTO CLUTCH
PTO PRESSURE TEST
PORT
4000 PSI
.031”
19.0
CID
TOW
VALVE
0.37 CID
0.37 CID
PORT 1
43 PSI
CHARGE PRESSURE TEST PORT
313 PSI
REAR ATTACHMENT
LIFT CYLINDER (OPT)
BORE: 2.00”
STROKE: 1.75”
ROD: 0.75”
EXTEND TO LIFT
.028”
.028”
1:0.691
1:1
1:1.025
1:1.025
PORT 2
.031”
DECK CYLINDER
BORE: 1.50”
STROKE: 3.68”
ROD: 0.75”
EXTEND TO LIFT
S1 S2
C1
P2
P3
T
DECK LIFT MANIFOLD
SV2 SV3
SV4
SV5
SV1
OPTIONAL REAR
ATTACH LIFT KIT
TP
B R M1 M2 CD
4.9 GPM 4.9 GPM
15.1 GPM
15.1 GPM
.047”
WING CYLINDER
BORE: 1.75”
STROKE: 2.25”
ROD: 0.75”
EXTEND TO LOWER
WING CYLINDER
BORE: 1.75”
STROKE: 2.25”
ROD: 0.75”
EXTEND TO LOWER
FORWARD
FORWARD
REVERSE
REVERSE
A
B
A
B
CHARGE
FILTER
BREATHER
OPTIONAL
OPTIONAL 100” DECK
OPTIONAL REAR HYDRAULIC
POWERED ATTACHMENT
.55 CID
.055”
FOR OPTIONAL 100” DECK,
ORIFICE IS INSTALLED
C
D
C
D
OIL COOLER
3000 PSI
86 PSI
D
C
PORT P3 IS PLUGGED W HEN
OPTIONAL REAR ATTACH
LIFT KIT IS NOT USED
OVERFLOW
TANK
SV6
SV6
OPTIONAL
AUXILIARY
HYDRAULIC
POWER KIT