Chapter 4
Hydraulic System
Table of Contents
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . 3
Traction Unit Operator’s Manual . . . . . . . . . . . . . . . 3
Check Hydraulic Fluid . . . . . . . . . . . . . . . . . . . . . . . 3
Towing Traction Unit . . . . . . . . . . . . . . . . . . . . . . . . . 3
Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Hydraulic Fitting Installation . . . . . . . . . . . . . . . . . . . 4
Relieving Hydraulic System Pressure . . . . . . . . . . 6
Traction Circuit Component Failure . . . . . . . . . . . . 6
HYDRAULIC SCHEMATICS . . . . . . . . . . . . . . . . . . . . 7
HYDRAULIC FLOW DIAGRAMS . . . . . . . . . . . . . . . . 8
Traction Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mow Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Lift Circuit: Raise Cutting Units . . . . . . . . . . . . . . . 12
Lift Circuit: Lower Cutting Units . . . . . . . . . . . . . . . 14
Steering Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Hydraulic Pressure Test Kit . . . . . . . . . . . . . . . . . . 18
Hydraulic Tester (Pressure and Flow) . . . . . . . . . 18
Hydraulic Test Fitting Kit . . . . . . . . . . . . . . . . . . . . . 19
O--Ring Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Measuring Container . . . . . . . . . . . . . . . . . . . . . . . 20
High Pressure Hydraulic Oil Filter . . . . . . . . . . . . 20
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 21
General Hydraulic System Problems . . . . . . . . . . 21
Traction Circuit Problems . . . . . . . . . . . . . . . . . . . . 22
Mow Circuit Problems . . . . . . . . . . . . . . . . . . . . . . . 23
Lift Circuit Problems . . . . . . . . . . . . . . . . . . . . . . . . 24
Steering Circuit Problems . . . . . . . . . . . . . . . . . . . 25
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Traction Circuit Relief Valve (R3) and (R4)
SERVICE AND REPAIRS . . . . . . . . . . . . . . . . . . . . . 54
General Precautions for Removing and Installing
Hydraulic System Components . . . . . . . . . . . . . 54
Check Hydraulic Lines and Hoses . . . . . . . . . . . . 55
Flush Hydraulic System . . . . . . . . . . . . . . . . . . . . . 56
Hydraulic System Start--up . . . . . . . . . . . . . . . . . . 57
Hydraulic Reservoir . . . . . . . . . . . . . . . . . . . . . . . . 58
Hydraulic Pump Drive Shaft . . . . . . . . . . . . . . . . . 60
Hydraulic Pump Assembly . . . . . . . . . . . . . . . . . . . 62
Piston (Traction) Pump Service . . . . . . . . . . . . . . 66
Gear Pump Service . . . . . . . . . . . . . . . . . . . . . . . . . 68
Front Wheel Motor . . . . . . . . . . . . . . . . . . . . . . . . . 70
Wheel Motor Service . . . . . . . . . . . . . . . . . . . . . . . 72
Mow Control Manifold . . . . . . . . . . . . . . . . . . . . . . . 74
Mow Control Manifold Service . . . . . . . . . . . . . . . 76
Lift Control Manifold . . . . . . . . . . . . . . . . . . . . . . . . 80
Lift Control Manifold Service . . . . . . . . . . . . . . . . . 82
CrossTrax
CrossTrax
TM
AWD (Optional Kit) Manifold . . . . . . 84
AWD (Optional Kit) Manifold
TM
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Cutting Reel Motor . . . . . . . . . . . . . . . . . . . . . . . . . 88
Cutting Reel Motor Service . . . . . . . . . . . . . . . . . . 90
Lift Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Lift Cylinder Service . . . . . . . . . . . . . . . . . . . . . . . . 96
Steering Control Valve . . . . . . . . . . . . . . . . . . . . . . 98
Steering Control Valve Service . . . . . . . . . . . . . . 100
Steering Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Steering Cylinder Service . . . . . . . . . . . . . . . . . . 104
Oil Cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
SAUER--DANFOSS LPV CLOSED CIRCUIT AXIAL
PISTON PUMPS REPAIR MANUAL
Pressure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Traction Circuit Charge Pressure Test . . . . . . . . . 30
Gear Pump (P3) Flow Test . . . . . . . . . . . . . . . . . . 32
Front Wheel Motor Efficiency Test . . . . . . . . . . . . 34
Relief Valve (R1) and (R2) Pressure Test . . . . . . 36
Gear Pump (P1) and (P2) Flow Test . . . . . . . . . . 38
Reel Drive Motor Efficiency Test . . . . . . . . . . . . . . 40
Reel Drive Motor Cross--Over Relief Pressure
SAUER--DANFOSS LPV CLOSED CIRCUIT AXIAL
PISTON PUMPS SERVICE INSTRUCTIONS
TM
SERVICE PROCEDURE
(TC, TB, TE, TJ, TF, TG, TH AND TL SERIES)
SAUER--DANFOSS STEERING UNIT TYPE OSPM
SERVICE MANUAL
PARKER TORQMOTOR
Test (Reelmaster 5510 and 5610) . . . . . . . . . . . 42
Lift Relief Valve (R6) Pressure Test . . . . . . . . . . . 44
Gear Pump (P4) Flow Test . . . . . . . . . . . . . . . . . . 46
Lift Cylinder Internal Leakage Test . . . . . . . . . . . . 48
Steering Relief Valve (R10) Pressure Test . . . . . 50
Steering Cylinder Internal Leakage Test . . . . . . . 52
Reelmaster 5010 Series
Page 4 -- 1
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro 5210, Toro 5410, Toro 5510, Toro 5610 |
| Download File |
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| Document Type | Catalog, Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
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| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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