IX-4 4181383 First Edition
INDEX
IX
Hydrostatic Power Train
Component Location . . . . . . . . . . . . . . . . . . . 5-3
Field Test Procedures . . . . . . . . . . . . . . . . . 5-12
Instrument Test Procedures . . . . . . . . . . . . . 5-14
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Tests and Adjustments . . . . . . . . . . . . . . . . . 5-10
Traction Circuit Forward Schematic
and Theory of Operation . . . . . . . . . . . . . . 5-4
Traction Circuit Reverse Schematic
and Theory of Operation . . . . . . . . . . . . . . 5-6
Traction Circuit-Forward Schematic . . . . . . . . 5-5
Transmission Neutral Adjustment . . . . . . . . . 5-10
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . 5-8
I
Indicator Lamps
Removal and Installation . . . . . . . . . . . . . . . 4-72
Instrument Panel
Removal and Installation . . . . . . . . . . . . . . . 4-71
Instrument Test Procedure
Front Cutting Units Circuit . . . . . . . . . . . . . . 6-24
Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23
Instrument Test Overview . . . . . . . . . . . . . . 6-23
Instrument Test Procedures
Charge Pressure Test . . . . . . . . . . . . . . . . . 5-15
Front Cutting Units Motors Test . . . . . . . . . . 6-28
Hydrostatic Power Train . . . . . . . . . . . . . . . . 5-14
Instrument Test Overview . . . . . . . . . . . . . . 5-14
Lift/Steer Pump Test . . . . . . . . . . . . . . . . . . . 6-39
Lift/Steer System Relief Valve Pressure Test 6-36
Rear Cutting Units Circuit Test . . . . . . . . . . . 6-30
Rear Cutting Units Circuit Valve Tests . . . . . 6-33
Rear Cutting Units Motors Test . . . . . . . . . . 6-34
Rear Cutting Units Pump Test . . . . . . . . . . . 6-32
Traction Pump Tests . . . . . . . . . . . . . . . . . . 5-18
Traction System Test . . . . . . . . . . . . . . . . . . 5-16
Wheel Motors Test . . . . . . . . . . . . . . . . . . . . 5-20
Instrumentation Circuit
Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
Theory of Operation . . . . . . . . . . . . . . . . . . . 4-38
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 4-52
J
Job Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
K
Key Switch
Removal and Installation . . . . . . . . . . . . . . . 4-71
Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58
L
Lift Cylinders
Disassembly, Inspection, and Assembly . . . 6-50
Removal and Installation . . . . . . . . . . . . . . . 6-49
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-49
Lift Valve
Disassembly, Inspection, and Assembly . . . 6-44
Removal and Installation . . . . . . . . . . . . . . . 6-44
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-44
Lifting Equipment, Safety . . . . . . . . . . . . . . . . . 1-6
Light Circuit
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 4-55
Light Switch
Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60
Lights
Component Symbols . . . . . . . . . . . . . . . . . . . 4-6
Lower Circuit
Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
M
Miscellaneous Symbols
Component Symbols . . . . . . . . . . . . . . . . . . . 4-7
Motors and Generating Devices
Component Symbols . . . . . . . . . . . . . . . . . . . 4-6
Mow Circuit
Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35
Theory of Operation . . . . . . . . . . . . . . . . . . 4-34
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 4-50
Mow Circuit (On) Schematic and Theory of
Operation
Mow Circuit (On) Schematic . . . . . . . . . . . . 6-19
Mow Switch
Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-62
Mower Deck Housing
Disassembly and Assembly . . . . . . . . . . . . 8-19
Repair-AR-522 . . . . . . . . . . . . . . . . . . . . . . 8-19