Need the factory answers for your Takeuchi TB045 compact excavator? This 308-page Takeuchi TB045 service manual PDF (OEM #WK2-101E2) is the same shop manual Takeuchi techs use, covering the machine from drive system to dozer blade. Inside: full hydraulic schematics, wiring diagrams for the complete electrical system, and a heavy troubleshooting section that walks travel, slew, boom, arm, and bucket faults back to the source. You also get teardown and rebuild procedures for the hydraulic pump, control valve, travel motor, slew motor, and swivel joint. The hydraulic system holds 120 L total (95 L in the tank); set rubber crawler tension between 112 and 122 mm before you send it back to work. No more chasing hydraulic faults with a gauge and a prayer. Bookmarked, keyword-searchable, and it opens on any device; pull it up on your phone and start wrenching.
What's Inside This Takeuchi TB045 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Cautions | 3 | Helmet, Safety Shoes, Work Clothes, Hoisting Equipment, Communications, Crane Operation, Suspended Load, Electrical System |
| Cautions During Disassembly and Assembly | 4 | Machine Conditions, Matching Marks, Disassembled Parts, Seals, Cotter Pins, Electrical Parts, Rubber, V-Belts |
| Cautions During Removal and Installation of the Hydraulic Units | 5 | Hydraulic Oil Temperature, Residual Pressure, Caps, Plugs, Hydraulic Cylinder, Rod Plating, Air Bleeding, Hydraulic Oil Tank |
| Cautions During Removal and Installation of Piping | 6 | Hydraulic Hoses, Fittings, Seal Tape, Spanners, Working Pressure |
| Handling of Seals | 7 | O-Rings, Floating Seals, Gear Oil, Oil Seal Lip, Grease |
| General | 8-16 | General Cautions, Disassembly and Assembly, Hydraulic Units, Piping, Seals, Tightening Torques |
| Specifications | 17-58 | Machine Components, Dimensions, Lifting Capacities, Weights, Fluid Capacities, Lubricants, Servicing Standards |
| Machine Configuration | 59-114 | Drive System, Slew System, Travel System, Upper Frame, Control System, Attachments, Hydraulic System, Electrical System |
| Hydraulic Units, Overview | 115-118 | - |
| Hydraulic Pump | 119-140 | Pump Structure, Regulator, Flow Control, Disassembly and Assembly, Inspection, Noise and Cavitation Checks |
| Control Valve | 141-166 | Valve Structure, Main Relief Valve, Port Relief Valve, Solenoid Valve, Disassembly, Troubleshooting Symptoms |
| Pilot Valve | 167-176 | Pilot Valve Structure, Operation, Disassembly and Assembly, Inspection |
| Cylinders | 177-194 | Boom Cylinder, Arm Cylinder, Bucket Cylinder, Swing Cylinder, Disassembly and Assembly, Special Tools |
| Travel Motor | 195-226 | Motor Structure, Counterbalance Valve, Relief Valve, Parking Brake, Disassembly, Inspection Standards |
| Slew Motor | 227-240 | Slew Motor Structure, Speed Reducer, Relief Valve, Disassembly and Assembly |
| Swivel Joint | 241-250 | Swivel Joint Structure, Disassembly, Assembly, Inspection |
| Troubleshooting | 251-308 | Overall Machine, Machine Travel, Slewing, Boom, Arm, Bucket, Dozer Blade |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Battery | 12-150 V-A-h | p. 28 |
| Hydraulic Oil Tank | 95 L (25.1 gal) | p. 35 |
| Hydraulic Oil Total System | 120 L (31.7 gal) | p. 35 |
| Double Grouser Link Height | 65 ±0.1 mm | p. 39 |
| Rubber Crawler Tension | 112-122 mm | p. 50 |
| Carrier Roller Shaft End Play | 0.6 mm | p. 50 |
| Crawler Belt Weight (Steel) | 267 kg | p. 83 |
| Crawler Belt Weight (Rubber) | 245 kg | p. 83 |
| Idler + Track Tension Weight | 62 kg | p. 85 |
| Travel Motor Weight | 55 kg | p. 85 |
| Hydraulic Tank Level Capacity | 95 L | p. 111 |
| All Circuit Capacity | 120.0 L | p. 108 |
Takeuchi TB045 Common Problems This Manual Covers
Takeuchi TB045 rubber track keeps coming off, derails when turning on soft or uneven ground
Check track sag first; correct rubber crawler tension is 112-122 mm per the servicing standards on page 50. Bleed grease from the tension cylinder fitting, dig packed mud and rock out of the idler and roller path, then re-tension to spec. Inspect the front idler for side play; a wobbling idler lets the track walk off on turns.
Manual Section: Specifications p. 50Boom and arm feel weak, slow cycle times, bucket will not break out hard ground
Check hydraulic oil level before anything else; the tank holds 95 L and a low tank starves the pump. Test system pressure against the 200 kgf/cm2 main relief setting listed on page 28. If pressure is down across every circuit, suspect the relief valve or pump; if only one circuit is weak, work the charts starting on page 251.
Manual Section: Troubleshooting p. 251Hydraulic oil runs hot and machine loses power after an hour of steady digging
Blow out the radiator and oil cooler fins with compressed air from the fan side, not the front. Verify the cooling system is full at its 9 L capacity, shown on page 49. If the hydraulic oil looks dark or milky, drain and refill the circuit; total system capacity is 120 L. Contaminated or aerated oil overheats fast under load.
Manual Section: Specifications p. 49Engine will not crank or turns over slowly, intermittent no-start on cold mornings
Test battery voltage and load capacity first; the machine runs a 12 V, 150 Ah battery per the spec table on page 28. Clean and tighten both cable ends and check the ground strap to the frame for corrosion. If cranking stays weak with a good battery, trace the starter circuit using the wiring diagram.
Manual Section: Machine Configuration p. 49Hydraulic pump whines or growls at idle, noise gets louder under load
Check the sight gauge; tank level capacity is 95 L and a low tank pulls air into the suction line, which is what a whine usually means. Tighten every suction-side fitting and inspect the strainer for sludge before condemning the pump. If the noise persists with clean, full oil, run the pump test procedures starting.
Manual Section: Hydraulic Units p. 131Frequently Asked Questions
What are the replacement specifications for hydraulic filters?
The nominal rating for the filter element is 10 microns. The relief valve set pressure for the filter assembly is 0.1 ± 0.02 MPa, and the rated flow rate is 150 liters per minute. p. 108
What is the tightening torque for the cushion rubber installation nuts on the engine?
The standard tightening torque for the cushion rubber installation nuts is 4.8 kgfm. p. 70
What is the recommended gear oil filling quantity for the travel motor speed reducer?
The speed reducer lubricating oil volume is approximately 1200 cc. p. 221
What is the standard tightening torque for the slew bearing installation bolts?
The installation torque for the slew bearing bolts is 26.1 kgfm for both the inner and outer races. p. 78
How do you pressurize the hydraulic tank after maintenance?
Lower the dozer blade until it contacts the ground, then extend all cylinders fully except the blade cylinder. In this state, tighten the air vent plug to seal the tank tight. p. 11
Will this Takeuchi TB045 Service Manual download right away?
All 308 pages arrive as one searchable PDF at checkout. Read it at the desk, then take the phone out to the machine.
Can I print just the pages I need from this Takeuchi TB045 manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
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