Published by Takeuchi under document number CN4E000, this Takeuchi TB2150 service manual PDF runs 422 pages and is the factory shop book for the TB2150 hydraulic excavator. Disassembly and assembly take up about a third of the book, covering the drive system, travel system, slew equipment, upper frame and attachments, and a troubleshooting section sorts faults by travel, slewing, boom, arm and bucket. Hydraulic schematics trace the pump, pilot valve and slew motor circuits, wiring diagrams lay out the electrical side, and the back holds the maintenance software manual plus air conditioner service. Check your sprocket against dimension A: 530.6 mm (20.9 in.) new, 524.6 mm (20.7 in.) allowable, then torque each 1/2 hose union nut to 58.8 ± 4.9 N·m on reassembly. Calling sprocket wear by eye wastes good steel. With section bookmarks and a searchable text layer, you can measure against the wear limits and order the right sprocket or rollers the first time.
What's Inside This Takeuchi TB2150 Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 3-13 | Safety Precautions, Cautions When Working |
| Service Data | 14-70 | Dimensional Drawing, Specification Tables, Table of Masses, Lubricant and Fuel Chart, Performance Criteria |
| Function | 71-98 | Hydraulic Pump, Pilot Valve, Slew Motor |
| Disassembly and Assembly | 99-237 | Service Standards, Drive System, Travel System, Slew Equipment, Upper Frame, Attachments |
| Troubleshooting | 238-295 | Overall Machine, Traveling, Slewing, Boom, Arm, Bucket |
| Other | 296-422 | Maintenance Software Manual, Air Conditioner |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic hose union nut (G) 3/8 | 49.0 ± 4.9 N·m | p. 49 |
| Hydraulic hose union nut (G) 1/2 | 58.8 ± 4.9 N·m | p. 48 |
| Sprocket Standard dimension A | 530.6 mm (20.9 in.) | p. 100 |
| Sprocket Allowable value A | 524.6 mm (20.7 in.) | p. 100 |
| Track roller Standard dimension A | 130 mm (5.1 in.) | p. 100 |
| Track roller Allowable value A | 124 mm (4.9 in.) | p. 100 |
| Carrier roller Standard dimension A | 120 mm (4.7 in.) | p. 100 |
| Carrier roller Standard dimension B | 40 mm (1.6 in.) | p. 100 |
| Idler Standard dimension A | 454 mm (17.9 in.) | p. 100 |
| Idler Allowable value A | 448 mm (2.8 in.) | p. 100 |
| Segmented rubber crawler weight | 812 kg (1790 lb) | p. 120 |
| Engine Oil Pan Capacity (Upper limit) | 10 L | p. 34 |
Takeuchi TB2150 Common Problems This Manual Covers
Takeuchi TB2150 sprocket measuring worn below standard dimension A of 530.6 mm during undercarriage inspection
Measure sprocket dimensions A and B against the service standards on page 100. Standard A is 530.6 mm with an allowable limit of 524.6 mm; standard B is 61 mm, allowable 55 mm. If either is past the limit, replace the sprocket and torque the bolts to 281 N·m (207 ft.-lb) per page 122.
Manual Section: Disassembly and Assembly p. 100Track roller worn, dimension A measuring under the 130 mm standard during undercarriage inspection
Measure track roller dimension A against the service standards on page 100: standard is 130 mm and the allowable limit is 124 mm. Check dimension B against its 50 mm standard. Replace any roller past the limit and torque track roller bolts to 299 N·m (221 ft.-lb). Torque carrier roller bolts to 256 N·m (189 ft.-lb) following page 121.
Manual Section: Disassembly and Assembly p. 100Right or left travel speed decelerates, or 2nd-speed travel not possible on one track
Check whether the slowdown is on one side or both before chasing parts. Work through the Traveling charts in the Troubleshooting section, starting with the no-travel and deceleration flows. Check travel reduction gear oil on the slow side against the 2.1 L capacity listed on page 34 before you pull anything apart.
Manual Section: TravelingSlewing slow or lacks force, overrun large, upper cannot maintain posture on slope
Check slew reduction gear oil first; the capacity is 5.3 L per page 34. Then work through the Slewing troubleshooting charts for slow slew, large overrun and failure to hold on a slope. Review how the slew motor works in the Function section starting on page 71 before tearing into the slew equipment.
Manual Section: SlewingBoom or arm cylinder spontaneous drop too large, actuator drops once when raised
Inspect the control valve before you condemn the cylinder. Check whether the spool holds neutral, whether the sliding part moves smoothly, and whether oil is leaking from the spool seal. Then run the Boom and Arm spontaneous drop charts in the Troubleshooting section to separate a valve fault from the cylinder itself.
Manual Section: Control Valve p. 288All systems working but power insufficient, boom, arm, bucket and slew too slow
Check the hydraulic tank level first. Tank capacity is 106.5 L and total system oil is 248.3 L per page 34. Then test the piston pump for insufficient discharge, pressure not increasing, noise or abnormal heat, and check the gear pump for insufficient discharge, following the Overall Machine troubleshooting flow.
Manual Section: Overall MachineFrequently Asked Questions
What are the torque specifications for the Takeuchi TB2150 track adjuster check valve?
The torque specification for the track adjuster check valve on the Takeuchi TB2150 is 177 N·m (130 ft.-lb). p. 119
What is the procedure for bleeding air from the hydraulic pump on the Takeuchi TB2150?
To bleed air from the hydraulic pump, loosen the plug (1) on the pump until hydraulic oil overflows from the plug hole, then tighten the plug. p. 166
What is the torque spec for the slew motor mounting bolts on the Takeuchi TB2150?
The slew motor mounting bolts must be tightened to 476 N·m (351 ft-lb). p. 123
What is the replacement interval for the engine oil in the Takeuchi TB2150?
The engine oil in the engine oil pan should be changed every 500 hours or every 1 year. p. 34
What is the capacity of the hydraulic tank for the Takeuchi TB2150?
The total amount of oil in the hydraulic system is 248.3 L (65.6 US gal.), and the tank capacity is 106.5 L (28.1 US gal.). p. 34
Will this Takeuchi TB2150 Service Manual download right away?
You get a 422-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Am I able to print pages from this Takeuchi TB2150 manual?
Yes. It prints from any PDF reader, so run off the pages you need for your own repair work.
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