Takeuchi TB 250 Hydraulic Excavator Manuals

Takeuchi TB 250 Hydraulic Excavator Manuals

Manuals and User Guides for Takeuchi TB 250 Hydraulic Excavator. We have 2 Takeuchi TB 250 Hydraulic Excavator manuals available for free PDF download: Workshop Manual, Operator's Manual

Takeuchi TB 250 Workshop Manual

Takeuchi TB 250 Workshop Manual (353 pages)

Brand: Takeuchi | Category: Compact Excavator | Size: 27 MB

Table of Contents

Foreword
2
Safety
3
Safety Alert Symbol
4
Safety Label
4
Safety Precautions
5
Checks after Maintenance
10
Cautions When Working
11
Table of Contents
13
Dimensional Drawing
14
- Machine Dimensions
  14
- Operating Range
  15
Specifications Tables
16
Lubricant and Fuel Chart
21
- Diesel Fuel Standards
  22
- Standard Values Table
  23
Performance Criteria
23
- Hydraulic Pump Assignment Table
  25
- Methods for Inspecting Performance
  26
- Adjusting Method
  26
- Hydraulic Oil Pressure
  26
- Main Relief Valve Set Pressure
  26
- Slewing Relief Valve Set Pressure
  27
- Pilot Pressure
  27
- Travel Speed
  28
- Straight-Ahead Travering
  28
- Travel Posture
  28
- Overrun When Slewing Stops
  29
- Natural Slew Drop
  29
- Slew Time
  29
- Natural Travel Drop
  29
- Boom Cylinder Speed
  30
- Arm Cylinder Speed
  30
- Bucket Cylinder Speed
  30
- Dozer Blade Cylinder Speed
  30
- Swing Cylinder Speed
  31
- Natural Cylinder Drop
  31
- Swing Cylinder
  31
- Lever Operating Force
  31
- Lever Play
  32
- Backlash
  32
- Slew Bearing Play
  32
- Crawler Tension
  32
- Bite-Type Pipe Fitting for Steel Pipe
  33
- Hydraulic Hose
  33
Tightening Torque
33
- Joint for Piping
  34
- Equipped with Options
  37
Hydraulic Circuit Diagram
37
Electric Circuit Diagram
45
Wire Harness Wiring Diagram
50
- Control Unit
  54
- Auxiliary Piping Detent
  58
- Starter Switch
  65
- To the Connector for Optional
  77
- Function
  82
- Discharge Volume Control
  83
- Operation
  83
- Piston Pump
  83
  - Relief Valve and Solenoid Valve
    85
  - Solenoid Valve
    85
- Gear Pump
  86
- Control Valve
  87
  - Load Check Valve
    87
  - Main Relief Valve
    88
  - Port Relief Valve
    88
  - Relieving Operation
    88
  - Suction Operation
    89
  - Anti-Cavitation Valve
    90
  - Anti-Drift Valve
    90
  - Switch Valve
    91
- Pilot Valve
  93
- Proportional Control Solenoid Valve
  94
- Emergency Shut-Off Valve
  95
- Cushion Mechanism
  96
- Cylinders
  96
  - Counter Balance Valve
    97
  - Hydraulic Motor
    97
- Travel Motor
  97
  - 2-Speed Mechanism
    98
  - 2Nd Speed Control Valve
    98
  - Automatic 2-Speed Switching System
    99
  - Swash Plate
    99
  - Parking Brake
    100
  - Reduction Gears
    100
  - Relief Valve
    101
- Slew Motor
  101
  - The 1St Stage
    101
  - The 2Nd Stage
    101
  - Anti-Rebound Valve
    102
  - Make-Up Valve
    102
  - When the Brake Is Actuated
    102
  - When the Motor Rebounds
    102
  - Timer Valve
    104
- Swivel Joint
  105
  - Disassembly and Assembly
    106
  - Carrier Roller
    107
  - Drive Sproket
    107
- Service Standards
  107
  - Track Roller
    107
  - Clearance for Pin and Bushing
    108
- Drive System
  110
  - Removing the Engine
    110
  - Installing the Engine
    111
  - Removing the Radiator and Oil Cooler
    112
  - Installing the Radiator and Oil Cooler
    113
  - Removing the Hydraulic Pump
    114
  - Cautions on Starting the Hydraulic Pump
    115
  - Installing the Hydraulic Pump
    115
  - Removing the Fuel Tank
    116
  - Installing the Fuel Tank
    117
  - Adjusting the Throttle Lever
    118
  - Control Force
    118
  - Engine Revolution
    118
  - Installing the Crawler Belt
    119
  - Removing the Crawler Belt
    119
- Travel System
  119
  - Installing the Steel Crawler
    120
  - Removing the Steel Crawler
    120
  - Installing the Carrier Roller
    121
  - Installing the Track Roller
    121
  - Removing the Carrier Roller
    121
  - Removing the Track Roller
    121
  - Exchanging between Rubber Crawlers and Steel Crawlers
    122
  - Installing the Idler and the Track Adjuster
    123
  - Installing the Travel Motor
    123
  - Removing the Idler and the Track Adjuster
    123
  - Removing the Travel Motor
    123
  - Installing the Slew Motor
    124
  - Removing the Slew Motor
    124
- Slew System
  124
  - Installing the Slew Bearing
    125
  - Removing the Slew Bearing
    125
  - Installing the Swivel Joint
    126
  - Removing the Swivel Joint
    126
  - Removing the Upper Frame
    127
- Upper Frame
  127
  - Installing the Upper Frame
    128
  - Removing the Covers
    129
  - Installing the Covers
    131
  - Installing the Cab
    132
  - Removing the Cab
    132
  - Control Lever
    133
- Control System
  133
  - Removing the Lever Stand
    133
  - Control Lever Pedal
    134
  - Hydraulic Pilot Unit
    136
  - Blade Lever
    138
  - Lever Stand
    139
  - Control Box R
    140
  - Control Box L
    141
  - Installing the Lever Stand
    142
  - Adjusting the Control Cable
    143
  - Removing the Attachments
    144
  - Installing the Bucket
    145
  - Removing the Bucket
    145
  - Installing the Arm
    146
  - Installing the Link
    146
  - Removing the Arm
    146
  - Removing the Link
    146
  - Installing the Boom
    147
  - Removing the Boom
    147
  - Installing the Swing Bracket
    148
  - Removing the Swing Bracket
    148
  - Removing the Dozer Blade
    149
  - Removing the Hydraulic Tank
    150
  - Installing the Hydraulic Tank
    151
  - Inspecting the Hydraulic Oil Tank Level and Reﬁlling
    152
  - Pressurizing the Hydraulic Tank
    153
  - Reﬁlling
    153
  - Bleeding the Air
    154
  - Hydraulic Pump
    154
  - Construction
    155
- Hydraulic Pump
  155
  - Disassembly
    156
  - Special Tools
    156
  - Assembly
    166
  - Checking the Parts
    177
  - Inspection and Adjustment
    177
- Control Valve
  179
  - Left Travel Section
    180
  - Right Travel Section
    180
  - Swing Section
    180
  - Boom Section
    181
  - Slew Section
    181
  - Arm Section
    182
  - Bucket Section
    182
  - Dozer Blade Section
    182
  - 1St Auxiliary Section
    183
  - 2Nd Auxiliary Section
    184
  - Inlet Housing
    184
  - Valve Assembly
    186
  - Manually Operated Section
    187
  - Pilot Operated Section
    188
- Pilot Valve
  191
- Proportional Control Solenoid Valve
  198
- Pilot Valve (Auxiliary)
  200
- Special Tool
  201
- Pilot Valve (Travel)
  211
- Solenoid Valve (1-Section)
  226
- Solenoid Valve (2-Section)
  229
  - Arm Cylinder
    232
  - Boom Cylinder
    232
  - Bucket Cylinder
    233
  - Dozer Blade Cylinder
    233
  - Cylinder Assembly
    236
  - Piston Rod Assembly
    236
  - Bucket Cylinder, Blade Cylinder
    237
  - Boom Cylinder, Arm Cylinder
    238
  - Piston, Piston Packing Holder
    238
  - Holder
    239
  - Retainer
    239
  - Rod Cover
    239
  - Clevis
    240
  - Inspection after Disassembly
    247
  - Bleeding Air from the Hydraulic Cylinder
    248
  - Inspection after Assembly
    248
  - Leak Test
    248
  - No Load Operation Test
    248
- Travel Motor
  249
- Slew Motor
  264
  - Brake Valve
    266
  - Brake Valve and Hydraulic Motor
    268
- Swivel Joint
  283
  - Flange
    286
  - Hub, Shaft
    286
  - Inspection Procedure and Treatment
    286
  - Thrust Ring
    286
- Air Conditioner
  288
  - Cautions on Maintenance
    291
  - Checking the Refrigerant
    291
  - Inspection and Maintenance Interval
    291
  - Troubleshooting
    292
  - Notes on Troubleshooting and Servicing
    293
- No Operation Is Possible
  294
- Overall Machine
  294
- All Systems Working, but Insufﬁcient Force
  295
- Boom, Bucket, Slew and Arm Fail to Move or Are too Slow
  297
- Right or Left Travel Is Impossible
  299
- Traveling
  299
- The Boom Cylinder Does Not Move
  315
- Arm Cylinder Does Not Move
  322
- Arm Cylinder Operation Is Slow or Lacks Force
  324
- Spontaneous Drop of the Arm Is too Large
  326
- Bucket Cylinder Does Not Move or Lacks Force
  327
- Spontaneous Drop of the Bucket Is too Large
  329
- Boom Swing
  330
- Swing Cylinder Does Not Move
  330
- Blade
  335
- Auxiliary Hydraulics
  336
- Proportional Control Is Not Possible
  336
- Piston Pump
  337
- Gear Pump
  338
- Control Valve
  339
- Pilot Valve
  341
- Proportional Control Solenoid Valve
  342
- Cylinders
  343
- 2Nd Speed Control
  344
- Travel Motor
  344
- Hydraulic Motor, Brake Valve
  346
- Slew Motor
  346
- Air Conditioner
  348
- The Outlets Temperature Cannot be Changed
  348
- Compressor Clutch Does Not Engage
  349
- Blower Motor Does Not Rotate
  350
- The Air Flow Cannot be Changed
  351

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Takeuchi TB 250 Operator's Manual

Takeuchi TB 250 Operator's Manual (10 pages)

Brand: Takeuchi | Category: Compact Excavator | Size: 0 MB

Table of Contents

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