Terrain King KB21 Service Manual
10-14
37002994247S
KB21
2014
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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
Decal Locations........................................................................................................................ 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-A Hydraulic Control Circuits................................................................................................. 37
Boom Control Circuits............................................................................................................... 39
30-B Hydraulic Tank Repair...................................................................................................... 41
30-C Gear Pumps..................................................................................................................... 43
Hydraulic Power to Motor.......................................................................................................... 43
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Gear Motor and Tandem Gear Pump Operation...................................................................... 43
Tandem Pumps......................................................................................................................... 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
One Way Restrictors................................................................................................................. 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
Valve Ports................................................................................................................................ 62
40 -B. Bucher Series L.8S Open Center Directional Control Valve, Electrical Control.... 63
General Operation.................................................................................................................... 65
Joystick Functions.................................................................................................................... 66
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Electrical Signals...................................................................................................................... 67
Emergency Stop (E-Stop) Switch............................................................................................. 69
Control Valves........................................................................................................................... 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 Spindle Assembly Repair................................................................................................. 83
Spindle Housing....................................................................................................................... 84
Spindle Housing Inspection...................................................................................................... 87
Spindle Housing Assembly....................................................................................................... 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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P/N 30002988455
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P/N D624
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P/N D688
P/N D622
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P/N D626
P/N D619
P/N D620
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P/N D621
P/N D835
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P/N D637
P/N D617
P/N D623
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