Wrenching on a Takeuchi TB80FR? This 516-page Takeuchi TB80FR workshop manual PDF (OEM #CL2E000) breaks down the entire compact excavator plus its Yanmar 4TNE94, 4TNE98, and 4TNE106 (T) engines. You get factory hydraulic schematics, wiring diagrams for the complete electrical system, and rebuild procedures for the main pump, control valves, pilot valves, cylinders, travel motor, and slew motor. A full troubleshooting section works symptom by symptom: travel, slewing, boom, arm, bucket, offset, and dozer blade. Chasing slow cycle times? Flow-check the AP2D36LV1RS7-939-0 main pump against its rated 68.4 L/min on both P1 and P2 circuits before you condemn a cylinder. Forum threads won't fix a dead travel motor. Bookmarked and text-searchable, this PDF opens on your phone or tablet right at the machine. Download it and get back to digging.
What's Inside This Takeuchi TB80FR Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 5-22 | Safety Precautions, Disassembly/Assembly Cautions, Hydraulic Unit Removal/Installation, Piping Removal/Installation, Seal Handling, Tightening Torques |
| Specifications | 23-60 | Names of Components, Specification Diagrams, Lifting Capacities, Specification Tables, Mass Tables, Recommended Lubricants, Types of Crawler Belts, Servicing Standards |
| Machine Configuration | 61-130 | Drive System, Slew System, Travel System, Upper Frame, Control System, Attachments, Hydraulic System, Electrical System |
| Hydraulic Units | 131-282 | Hydraulic Pump, Control Valve, Solenoid Valve, Pilot Valve, Cylinders, Tensioning Cylinder, Travel Motor, Slew Motor |
| Troubleshooting | 283-336 | Overall Machine, Machine Travel, Slewing, Boom, Arm, Bucket, Offset, Dozer Blade |
| Engine - Yanmar Tne Series (Bundled Engine Manual) | 337-516 | Yanmar 4TNE94 / 4TNE98 / 4TNE106(T) Diesel Engines: Specifications and Performance Curves, Engine Disassembly and Reassembly, Cylinder Head and Valves, Piston, Rod and Crankshaft, Lubrication and Cooling, Fuel Injection Pump and Nozzles, Turbocharger (4TNE106T), Troubleshooting, Wear Limits |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic Pump (Main) Model | AP2D36LV1RS7-939-0 | p. 31 |
| Hydraulic Pump (Main) Type | variable displacement type double axial piston plus tandem gear | p. 31 |
| Travel Motor Model | GM 09VL2-B-21/40-2 | p. 34 |
| Travel Motor Type | 2-Speed Piston Motor | p. 34 |
| Fuel tank capacity | 100L | p. 36 |
| Tensioning Cylinder Bore Diameter X Rod Diameter | 110 × 60 mm | p. 34 |
| Tensioning Cylinder Stroke | 115 mm | p. 34 |
| Hydraulic Oil Pressure Boom Standard Values | 27.5 +2.0 MPa | p. 48 |
| Hydraulic Oil Pressure Arm Standard Values | 27.5 +2.0 MPa | p. 48 |
| Fuel tank | 45 kg | p. 73 |
| Shaft | 1 | p. 133 |
Takeuchi TB80FR Common Problems This Manual Covers
Takeuchi TB80FR hydraulic system loses pressure, boom and arm cycle times noticeably slow
Test boom circuit pressure at the main relief valve; the standard value is 27.5 +2.0 MPa per the chart on page 48. If pressure reads low, check hydraulic oil viscosity, since the table on page 162 calls for replacing oil of improper viscosity. Inspect pump pistons; cylinder block clearance of 0.05 mm or more means replacement.
Manual Section: Hydraulic Units Troubleshooting p. 48Engine cranks but won't start in cold weather, needs multiple attempts before firing
Measure compression pressure; standard is 3.43 ± 0.1 MPa at 250 rpm, covered on page 364. Verify fuel injection pressure holds 21.57 to 22.55 MPa. Replace the fuel filter element if past its 500 hour interval, drain water from the separator, and clean the air cleaner element every 250 hours per the schedule on page 381.
Manual Section: Engine Troubleshooting p. 364Machine travels in a curve, one track runs slower than the other under load
Check crawler tension on both sides and adjust within the rubber track range of -7 to +20 shown on page 44. Verify travel motor parking brake release pressure reaches 0.45 MPa; a sticking brake drags one track. Drain and refill each final drive with 1.7 L of reduction gear lubricant and inspect sprocket teeth for hook wear.
Manual Section: Machine Travel Troubleshooting p. 44Upper structure slews slowly with no power, overruns when the operator stops the swing
Test slew circuit relief pressure; the standard value is 24.5 ±1.0 MPa listed on page 48. Adjust or replace the slew relief valve if pressure falls outside that range. Check pilot pressure against the 3.4 +0.8 MPa standard, since low pilot supply gives sluggish response. Replace all O-rings, backup rings, and seals when opening the valve, per page 186.
Manual Section: Slewing Troubleshooting p. 48Rubber track keeps loosening and links wear out early under heavy digging loads
Grease the tensioning cylinder and set track sag within the rubber crawler adjusting range of -7 to +20 listed on page 44. Inspect the tension coil spring; free length should measure 323 with an installed length of 291 ±1.0. If the cylinder leaks, loosen the rod cover, torqued to 431 N·m on page 244, and replace the seals.
Manual Section: Hydraulic Units Troubleshooting p. 44Frequently Asked Questions
What are the recommended service intervals?
The periodic maintenance schedule outlines various service intervals, including daily checks, and inspections every 50, 250, 500, 1000, and 2000 hours for different components like fuel tank level, oil replacement, radiator fin cleaning, and air cleaner element replacement. For example, fuel filter element replacement is recommended every 250 hours. p. 381
What fluids and capacities does this machine require?
The machine requires various fluids with specific capacities. For the engine oil pan, the upper limit is 10.2L and the lower limit is 5.7L. The hydraulic tank has a total system capacity of 165L, with a tank level of 125L. The fuel tank capacity is 100L, and the engine cooling system requires 10.5L of coolant. p. 36
How to troubleshoot engine won't start?
To troubleshoot an engine that won't start, first check the hydraulic oil level and replenish if insufficient. If the pump or coupling is faulty, repair or replace them. Additionally, the quick reference table suggests checking for starting failure, which might require adjusting valve clearance (refer to 3.5 in Chapter 3). p. 361
What are the valve clearance specifications?
The standard valve clearance specifications vary by engine model. For 4TNE94/98 engines, the clearance is 0.15-0.25 mm, while for 4TNE106(T) engines, it is 0.25-0.35 mm. This adjustment should be performed when the engine is cold. p. 369
What torque specifications are listed?
Various torque specifications are listed throughout the manual. For hydraulic hoses, a 1/8 inch union nut (G) requires 9.8 ±0.9 N-m (7.3 ±0.7 ft-lb). For main bolts and nuts, a cylinder head bolt for 4TNE94/98 (M11 x 1.25) requires 102.9 - 112.7 Nm (10.5 - 11.5 kgf*m). p. 19
What format is this manual in?
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