Chapter 4
Hydraulic System
Table of Contents
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . 4
Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Hydraulic Fitting Installation . . . . . . . . . . . . . . . . . . . 4
Pushing/Pulling Machine . . . . . . . . . . . . . . . . . . . . . 6
Check Hydraulic Fluid . . . . . . . . . . . . . . . . . . . . . . . 6
Relieving Hydraulic System Pressure . . . . . . . . . . 6
HYDRAULIC SCHEMATIC . . . . . . . . . . . . . . . . . . . . . 7
HYDRAULIC FLOW DIAGRAMS . . . . . . . . . . . . . . . . 8
Traction Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Coring Head Raise/Lower Circuits . . . . . . . . . . . . 10
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Hydraulic Pressure Test Kit . . . . . . . . . . . . . . . . . . 12
Hydraulic Tester (Pressure and Flow) . . . . . . . . . 12
Hydraulic Test Fitting Kit . . . . . . . . . . . . . . . . . . . . . 13
Wheel Hub Puller . . . . . . . . . . . . . . . . . . . . . . . . . . 13
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 14
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Charge Pressure Test . . . . . . . . . . . . . . . . . . . . . . . 18
Coring Head Raise/Lower Relief (R1)
SERVICE AND REPAIRS . . . . . . . . . . . . . . . . . . . . . 30
General Precautions for Removing and Installing
Hydraulic System Components . . . . . . . . . . . . . 30
Check Hydraulic Lines and Hoses . . . . . . . . . . . . 30
Flush Hydraulic System . . . . . . . . . . . . . . . . . . . . . 31
Hydraulic System Start--up . . . . . . . . . . . . . . . . . . 32
Hydraulic Pump Drive Belt . . . . . . . . . . . . . . . . . . . 34
Hydraulic Pump Control Assembly . . . . . . . . . . . . 36
Hydraulic (Traction/Charge) Pump . . . . . . . . . . . . 38
Hydraulic (Traction/Charge) Pump Service . . . . . 41
Wheel Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Wheel Motor Service . . . . . . . . . . . . . . . . . . . . . . . 44
Hydraulic Lift Control Manifold . . . . . . . . . . . . . . . 46
Hydraulic Lift Control Manifold Service . . . . . . . . 48
Lift Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Lift Cylinder Service . . . . . . . . . . . . . . . . . . . . . . . . 52
Hydraulic Reservoir . . . . . . . . . . . . . . . . . . . . . . . . 54
HYDRO--GEAR BDP--10A/16A/21L HYDROSTATIC
PUMPS SERVICE AND REPAIR MANUAL
SAUERDANFOSSGROUP2GEARPUMPSANDMO-
TORS SERVICE MANUAL
SAUER DANFOSS OMEW HYDRAULIC MOTOR
SERVICE MANUAL
Pressure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Traction (Piston) Pump (P1) Flow Test . . . . . . . . 22
Traction Circuit Relief Pressure Test . . . . . . . . . . 24
Gear Pump (P2) Flow Test . . . . . . . . . . . . . . . . . . 26
Wheel Motor Efficiency Test . . . . . . . . . . . . . . . . . 28
ProCore 648
Page 4 -- 1 Rev. C
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Document Type | Service Manual |
| Language | English |
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