Hydraulic Schematics 4 - Toro Greensmaster 3250-D 04383 Service Manual

Table of Contents
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION
Operator's Manual . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Hydraulic System Fluid
Towing Traction Unit . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Hose and Tube Installation
Hydraulic Fitting Installation
HYDRAULIC SCHEMATICS
Serial Number Under 220999999
Serial Number From 230000000 To 230001500
Serial Number From 230001501 To 260999999
Serial Number Above 270000000
HYDRAULIC FLOW DIAGRAMS
Traction Forward and Reverse
Raise and Lower Cutting Units
(Serial Number Under 260999999)
(Serial Number Above 270000000)
Mow and Backlap
(Serial Number Under 260999999)
(Serial Number Above 270000000)
Right and Left Turn . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . .
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Precautions for Hydraulic Testing
Traction Drive Hydrostat (P3) Flow Test
Wheel Motor Efficiency Test
Charge Relief Valve (R4) Pressure Test
Gear Pump (P2) Flow and Implement Relief
Valve (R5) Pressure Test
Lower Cutting Units Relief Valve (R2)
Pressure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Pump (P1) Flow Test
Mow Circuit Relief Valve (R1) Pressure Test
Reel Motor Case Drain Flow Test
Steering Control Valve Test
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjust Transmission for Neutral
Adjust Transport Speed
Adjust Mowing Speed . . . . . . . . . . . . . . . . . . . . . . .
Adjust Cutting Unit Drop Speed
Adjust Implement Relief Valve (R5) (Machines
with Serial Number Under 220999999)
Adjust Manifold Relief Valves (R1 and R2)
Greensmaster 3250--D
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Hydraulic System
3
SERVICE AND REPAIRS
4 General Precautions for Removing and
4
Installing Hydraulic System Components
4 Gear Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Gear Pump Service
6 Hydraulic System Start--up
7 Hydrostatic Transmission
8
Piston Pump Service
Piston Pump Crush Ring Replacement
Change Hydraulic Oil and Filter
Wheel Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel Motor Service
Flush Hydraulic System
Implement Relief Valve
Reel Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reel Motor Service
Serial Number Under 220999999
Serial Number Over 230000000
Oil Cooler (If Equipped)
Lift Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lift Cylinder Service
Hydraulic Manifold
Hydraulic Manifold Service
Serial Number Under 260999999
Serial Number Above 270000000
Flow Control and Backlap Valves (If Equipped on
Serial Number Under 260999999)
Rear Lift Cylinder Flow Control Valve
Steering Control Valve
Steering Control Valve Service
Serial Number Under 220999999
Serial Number From 230000000 to 270999999106
Serial Number Above 280000000
Steering Cylinder
Steering Cylinder Service
Hydraulic Reservoir
Leak Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EATON GEAR PUMPS, REPAIR INFORMATION, SE-
RIES 26, MODEL 26000, MULTIPLE GEAR PUMPS
EATON, MEDIUM DUTY PISTON PUMP, REPAIR
INFORMATION, MODEL 70160 VARIABLE DIS-
PLACEMENT PISTON PUMP
ROSS TORQMOTOR
MJ SERIES SERVICE PROCEDURE (SERVICE
MANUAL 2704--003)
SAUER/DANFOSS STEERING UNIT TYPE OSPM
SERVICE MANUAL
Rev. J
Chapter 4
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MG, MF, MP, MB, ME, AND
TM
Hydraulic System (Rev. I)
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