Terrain King KB21 User manual

KB21
10-14
2014
37002994247S

KB21 Service Manual Pub 09-14 2

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1-800-882-5756
1-800-882-5758

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Section 10 - Safety................................................... 7
General Safety Instructions and Practices............................................................................... 8
Operator Safety Instructions and Practices.............................................................................. 9
Connecting & Disconnecting Implement Safety Instructions and Practices............................. 12
Equipment Operation Safety Instructions and Practices.......................................................... 12
Maintenance and Service Safety Instructions and Practices.................................................... 18
Transporting Safety Instructions and Practices........................................................................ 21
Concluding Safety Instructions and Practices........................................................................ 22
DecalLocations........................................................................................................................ 23
Decal Descriptions................................................................................................................... 25
Federal Laws and Regulations................................................................................................. 31
Tractor Side Denition.............................................................................................................. 32
Mounting Work Site Requirements........................................................................................... 33
Warning: Do Not Weld.............................................................................................................. 34
Section 30 - Hydraulics........................................... 35
30-AHydraulicControl Circuits................................................................................................. 37
BoomControlCircuits............................................................................................................... 39
30-B Hydraulic Tank Repair...................................................................................................... 41
30-CGearPumps..................................................................................................................... 43
HydraulicPowertoMotor.......................................................................................................... 43

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Gear Motor and Tandem Gear Pump Operation...................................................................... 43
TandemPumps......................................................................................................................... 44
Motor Circuit Control Valve Operation...................................................................................... 46
Motor Control Valve Function................................................................................................... 47
Section 40 - Cylinder Control Systems.................. 48
40 -A. Bucher Series L.8S Open Center Directional Control Valve, Manual Control........ 49
Cylinder Hydraulic Control Circuit............................................................................................ 50
OneWayRestrictors................................................................................................................. 52
Valve Sections Function........................................................................................................... 52
Hose End Fitting Torque Specication..................................................................................... 52
Work Port Relief Operation...................................................................................................... 54
Anti-Cavitation Check/Work Port Relief Operation................................................................... 55
Control Circuit Main Relief Valve Operation............................................................................. 56
Remote Cable Operation and Installation................................................................................. 57
Control Assembly - Controller End - Installation Procedure..................................................... 59
Mechanical Control Valve......................................................................................................... 61
ValvePorts................................................................................................................................ 62
40 -B. Bucher Series L.8S Open Center Directional Control Valve, Electrical Control.... 63
GeneralOperation.................................................................................................................... 65
Joystick Functions.................................................................................................................... 66

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Electrical Signals...................................................................................................................... 67
Emergency Stop (E-Stop) Switch............................................................................................. 69
ControlValves........................................................................................................................... 70
Fixed Displacement Valve End Cap......................................................................................... 71
Valve Section Components...................................................................................................... 72
Valve Spool Functions & Specs............................................................................................ 72
Section 60 - Motors and Spindles.......................... 75
60-A Rotary Mowers............................................................................................................... 76
Typical Modes of Failure.......................................................................................................... 77
Motor Mount Flange (Spindle Housing) Breaking or Cracking................................................. 81
60-B SpindleAssembly Repair................................................................................................. 83
Spindle Housing....................................................................................................................... 84
Spindle Housing Inspection...................................................................................................... 87
Spindle HousingAssembly....................................................................................................... 88
Section 80: Testing.................................................. 93
80-A Mechanical Control Valve............................................................................................. 94
Section 90: References......................................... 97
90-A Pump Repair................................................................................................................ 98
90-B Pump Repair - Part Location........................................................................................ 109
90-C Pump Shaft Issues....................................................................................................... 111
90-D Hydraulic System Operation......................................................................................... 113
90-E PVG32 Troubleshooting................................................................................................ 115
90-F Safety References......................................................................................................... 117

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Section 10:
Safety

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Table of contents
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