Service Manual

Table Of Contents
Reelmaster 7000- D Hydraulic SystemPage 5 - 1
Chapter 5
Hydraulic System
Table of Contents
SPECIFICATIONS 2............................
GENERAL INFORMATION 3.....................
Operator ’s Manual 3..........................
Hydraulic Component Locations 3..............
Relieving Hydraulic System Pressure 4..........
Traction Circuit Component Failure 4............
Towing Traction Unit 5.........................
Hydraulic Hoses 6............................
Hydraulic Hose and Tube Installation 7..........
Hydraulic Fitting Installation 8..................
HYDRAULIC SCHEMATIC 11....................
HYDRAULIC FLOW DIAGRAMS 12...............
Traction Circuit: LOW Speed (Mow) 12..........
Traction Circuit: HIGH Speed (Transport) 14......
Mow Circuit 16...............................
Steering Circuit 18............................
Lower Cutting Units 20........................
Raise Cutting Units 22.........................
Engine Cooling Fan Circuit 24..................
SPECIAL TOOLS 26............................
TROUBLESHOOTING 31........................
TESTING 38...................................
Traction Circuit
Charge Pressure Test 40....................
Relief Pressure Test 44......................
Piston (traction) Pump Flow Test 46...........
Front Wheel Motor Case Drain
Leakage Test 50..........................
Reverse Reducing Valve (PR)
Pressure Test 54..........................
Rear Relief Valve (RV) Pressure Test 56.......
Cutting Unit Circuit
Pressure Test 58...........................
Relief Pressure Test 62......................
Cutting Unit Motor Case Drain
Leakage Test 66..........................
Steering/Lift Circuit
Steering Relief Pressure Test 70..............
Steering Cylinder Test 72....................
Lift Relief Pressure Test 74...................
Cooling Fan Circuit
Pressure Test 76...........................
Fan Motor Case Drain Leakage Test 78........
Gear Pump Flow Test
(pumpsectionsP2thruP5) 82................
ADJUSTMENTS 86.............................
Control Manifold Relief Valve Adjustment 86......
SERVICE AND REPAIRS 87.....................
General Precautions for Removing and
Installing Hydraulic System Components 87....
Check Hydraulic Lines and Hoses 88............
Priming Hydraulic Pumps 88...................
Flush Hydraulic System 89.....................
Filtering Closed- Loop Traction Circuit 90........
Charge Hydraulic System 91
...................
Ge
ar Pump 92................................
Gear Pump Service 94........................
Piston (traction) Pump 96......................
Piston (traction) Pump Service 98...............
Rear Traction Manifold 100.....................
Rear Traction Manifold Service 102.............
HI/LOW Range Manifold 104...................
Front Wheel Motors 106.......................
Rear Axle Motor 108..........................
Rear Axle and Front Wheel Motor Service 110....
Cutting Unit Motor 112.........................
Cutting Unit Motor Service 114.................
Mow Control Manifold 118.....................
Mow Control Manifold Service 120..............
Steering Control Valve 122.....................
Steering Control Valve Service 124..............
Steering Cylinder 126.........................
Steering Cylinder Service 128..................
Engine Cooling Fan Motor 130..................
Engine Cooling Fan Motor Service 134..........
Fan Control Manifold 136......................
Fan Control Manifold Service 138...............
Lift Manifold 140..............................
Lift Manifold Service 142.......................
Control Manifold Cartridge Valve Service 143.....
Lift Junction Manifold 144......................
Front Lift Cylinders 146........................
Rear Lift Cylinders 148........................
Lift Cylinder Service 150.......................
Hydraulic Reservoir 152.......................
Hydraulic Oil Cooler 154.......................
EATON MODEL 72400 SERVO CONTROLLED PIS-
TON PUMP REPAIR INFORMATION
DANFOSS K AND L FRAME VARIABLE MO-
TORS SERVICE MANUAL
DANFOSS STEERING UNIT TYPE OSPM
SERVICE MANUAL
Hydraulic
System