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Textron JACOBSEN GP400 - Page 343

Textron JACOBSEN GP400
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Index
4252490-Rev A IX-5
IX
Instrument Panel
Removal and Installation . . . . . . . . . . . . . . . 4-52
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52
Instrument Panel Cover
Removal and Installation . . . . . . . . . . . . . . . 9-13
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
Instrument Test Overview
Instrument Test Procedures . . . . . . . . 5-35, 6-31
Instrument Test Procedures
Charge Pressure Test . . . . . . . . . . . . . . . . . 5-36
Cutting Units Circuit Test . . . . . . . . . . . . . . . 6-32
Flushing Valve Check Valve Test . . . . . . . . 5-48
Gear Pump Test . . . . . . . . . . . . . . . . . . . . . . 6-33
Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31
Hydrostatic Power Train . . . . . . . . . . . . . . . . 5-35
Implement Relief Valve Pressure Test . . . . . 6-39
Instrument Test Overview . . . . . . . . . 5-35, 6-31
Left Front, Right Front, Rear Wheel Motors Test .
5-43
Lift Relief Valve Pressure Test . . . . . . . . . . . 6-41
Reel Motors Test . . . . . . . . . . . . . . . . . . . . . 6-36
Reel Valve Test . . . . . . . . . . . . . . . . . . . . . . 6-35
Traction Pump Test . . . . . . . . . . . . . . . . . . . 5-41
Traction System Test . . . . . . . . . . . . . . . . . . 5-37
Instrumentation Circuit
Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Theory of Operation . . . . . . . . . . . . . . . . . . . 4-33
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 4-38
K
Key Switch
Removal and Installation . . . . . . . . . . . . . . . 4-54
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54
Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42
L
Left and Right Front Lift Cylinders
Disassembly, Inspection, and Assembly . . . 6-55
Removal and Installation . . . . . . . . . . . . . . . 6-54
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-54
Left Front Wheel Motor
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-64
Disassembly and Inspection . . . . . . . . . . . . 5-60
Removal and Installation . . . . . . . . . . . . . . . 5-57
Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43
Lift Cylinder Leakage Test
Field Test Procedures . . . . . . . . . . . . . . . . . 6-28
Lift Relief Valve Pressure Test
Instrument Test Procedures . . . . . . . . . . . . 6-41
Lift Valve
Disassembly, Inspection, and Assembly . . 6-46
Removal and Installation . . . . . . . . . . . . . . 6-46
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-46
Lift Yoke
Removal and Installation . . . . . . . . . . . . . . 8-23
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23
Lifting Equipment
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Lights
Component Symbols . . . . . . . . . . . . . . . . . . 4-5
Lower Circuit
Schematic . . . . . . . . . . . . . . . . . . . . . . 4-25, 6-23
Theory of Operation . . . . . . . . . . . . . . 4-23, 6-22
Troubleshooting . . . . . . . . . . . . . . . . . . . . . 4-37
Lower Solenoid
Removal and Installation . . . . . . . . . . . . . . 4-61
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-61
Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
M
Machine Identification
Engine Serial Number . . . . . . . . . . . . . . . . . . 2-2
Machine Serial Number . . . . . . . . . . . . . . . . 2-2
Specifications and General Information . . . . 2-2
MCU
Removal and Installation . . . . . . . . . . . . . . 4-50
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50
Mechanical Troubleshooting
Troubleshooting . . . . . . . . . . . . . . . . . . . . . 8-16
Miscellaneous Symbols
Component Symbols . . . . . . . . . . . . . . . . . . 4-6
Motors and Generating Devices
Component Symbols . . . . . . . . . . . . . . . . . . 4-5
Mow Circuit
Schematic . . . . . . . . . . . . . . . . . . . . . . 4-27, 6-25
Theory of Operation . . . . . . . . . . . . . . 4-26, 6-24
Troubleshooting . . . . . . . . . . . . . . . . . . . . . 4-37
Mow Solenoid
Removal and Installation . . . . . . . . . . . . . . 4-62
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-62
Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47
Mow Speed Stop Adjustment
Checks and Adjustments . . . . . . . . . . . . . . . 9-6

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