Issued under factory document code MDTN/11. 9. 84., this 64-page Takeuchi TB650S, TB-10S operator manual PDF is the original book for both diesel backhoes, covering controls, operation, transport, and routine care. Wiring and hydraulic schematics show how the electrical and hydraulic circuits run through the machine, and the maintenance and troubleshooting pages take you through daily checks and the faults you can clear on site. Much of the closing section is given to illustrated engine component pages naming each filter, belt, pipe, and switch, from the cylinder block through the cooling, fuel, and thermostart systems. Set fan belt tension to 10 to 15 mm of flexion under about 10 kg of finger pressure, and bring the track roller fixing bolts to 102 Nm. Matching a filter to an older backhoe by eye wastes a morning. Bookmarked and text-searchable, the PDF lets you confirm the component on the page before calling the dealer, so the right part arrives first time.
What's Inside This Takeuchi TB650S, TB-10S Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 53 | Bracket, O-Ring |
| Cylinder Head | 54 | Oil Filler Cap, O-Ring, Pipe |
| Air Cleaner & Silencer | 55 | Air Cleaner, Air Cleaner Element, Gasket |
| Lubrication System | 56 | Oil Filter, O-Ring, Oil Pressure Switch |
| Cooling System | 57 | Fan Belt, Radiator, Radiator Cap, Cooling Fan, Drain Pipe |
| Fuel Oil System | 58 | Fuel Filter, Hose Clip |
| Electrical Starter | 59 | Starter Motor, Terminal Cover, Dynamo |
| Thermostart System | 60 | Thermostart, Fuel Oil Pipe, Header Tank |
| Engine Accessories | 61-64 | Earth Cable, Knob Ball, Lever, Control Wire |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Track roller fixing bolts tightening torque | 10.4kgm/102Nm | p. 34 |
| Fan belt tension | 10-15mm flexion | p. 34 |
| Starter Motor Voltage | 12V | p. 59 |
| Starter Motor Power | 1.3 kw | p. 59 |
| Overall Length | 3270 mm | p. 8 |
| Overall Width | 960 mm | p. 8 |
| Overall Height | 2000 mm | p. 8 |
| Complete Machine Operating Weight | 1100 kg | p. 8 |
| Slew Bearing Fixing Bolts Tightening Torque | 10.4 kgm/102 Nm | p. 34 |
| Engine Fixing Bolts Tightening Torque | 9.9 kgm/97 Nm | p. 34 |
| Engine Mount Fixing Bolts Tightening Torque | 4.8 kgm/47 Nm | p. 34 |
| Engine Oil Capacity | 3.0 L | p. 51 |
Takeuchi TB650S, TB-10S Common Problems This Manual Covers
Takeuchi TB650S engine running hot with steam boiling out of the radiator and thermostat needle swinging
Check the overheating chart once the engine has cooled. Press the fan belt midway between the fan pulley and generator with about 10 kg (98 N); flexion should be 10 to 15 mm. Inspect the radiator, radiator cap and cooling fan shown on page 57 before restarting.
Manual Section: Engine TroubleshootingBackhoe diesel engine does not start when the key is turned and the starter is working
Check the engine does not start chart first. Inspect the fuel filter, fuel injection pipes and return pipe hose clips on page 58 for leaks or loose clamps. Verify the thermostart, its fuel oil pipe and header tank on page 60 are intact, with fuel in the header tank.
Manual Section: Engine TroubleshootingEngine blowing black exhaust smoke out of the silencer while digging and travelling
Check the black smoking causes listed. Remove and inspect the air cleaner element shown on page 55; clean or replace it if it is clogged with dust. Check the silencer and its gasket on the same page for blockage before returning the machine to work.
Manual Section: Engine TroubleshootingStarter motor (cell-motor) does not rotate when turning the key to start the engine
Check the battery terminals and the earth cable connection shown on page 61 for corrosion or looseness. Verify the starter is the 12V, 1.3 kW unit listed on page 59 and inspect its terminal cover and wiring. Trace the starter circuit on the wiring diagram.
Manual Section: Electric Devices TroubleshootingUpper machine does not slew smoothly when swinging left or right during digging
Check the slew bearing fixing bolts for looseness and torque them to 10.4 kgm (102 Nm) following page 34. Verify the operation levers move freely and return to neutral, then work through the remaining slew checks under Body Troubleshooting before calling your dealer.
Manual Section: Body TroubleshootingFrequently Asked Questions
How do you adjust the track tension on a Takeuchi TB650S or TB-10S?
To adjust the track tension, lift the track using the boom. To tighten, feed grease into the grease nipple using a grease pump. To loosen, gradually loosen the grease valve to allow some grease to escape. p. 17
What are the torque specifications for the Takeuchi TB650S slew bearing fixing bolts?
The tightening torque for the slew bearing fixing bolts is 10.4 kgm (102 Nm). p. 34
What is the recommended interval for replacing the engine oil filter on the Takeuchi TB650S?
The engine oil filter should be replaced for the first time after 50 hours of use, and thereafter every 250 hours. p. 38
What is the specified capacity for the hydraulic tank on the Takeuchi TB650S?
The hydraulic tank has a capacity of 45 liters, with a total system capacity of 55 liters, which includes the tank, piping, and equipment. p. 39
What is the proper fan belt tension for the Takeuchi TB650S engine?
The proper fan belt tension is 10-15 mm of deflection when depressed with a force of approximately 10 kg (98 N) at the midpoint between the fan pulley and the generator. p. 36
Is this Takeuchi TB650S manual a PDF I download?
A single searchable PDF file of 64 pages, downloadable right after payment. Nothing ships, nothing waits in the mail.
Does this Takeuchi TB650S manual allow printing?
Yes. Print individual pages or full chapters for your own shop use, on letter or A4 paper.
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