Kubota U25-3 - Repair Manual

Other manuals for Kubota U25-3

Operator's Manual83 pages

Questions and Answers

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David RodriguezAug 15, 2025
Why is my Kubota U25-3 Excavators engine overheating?
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  jeanette36Aug 15, 2025
  If your Kubota Excavators engine is overheating, several factors could be responsible. Check for a worn or torn fan belt and adjust or replace it if needed. Ensure the coolant level is at the prescribed level. Clean any clogs from the radiator grill or fins. If the coolant is contaminated with rust, replace it and add anti-rust. A defective radiator cap can also cause overheating, so replace it if necessary. Clean corroded coolant pipes. Avoid continuous operation under full load and ensure the engine oil level is at the prescribed level. Finally, ensure you are using the prescribed fuel.
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Jodi RichAug 18, 2025
How to troubleshoot starting difficulties in Kubota Excavators?
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  scottdustinAug 18, 2025
  If your Kubota Excavators are hard to start, several factors could be the cause. The fuel might be too viscous; in this case, check the fuel tank and filter, remove any impurities and water, and replace the filter if necessary. There might be air or water in the fuel system; remove water from the fuel tank and check the fuel pipe joint bolts and nuts for looseness. Purge the fuel system. If the oil viscosity is too high, especially in winter, pour hot water over the radiator or use oils of different viscosities depending on the ambient temperature, such as SAE10W, SAE10W-30, or SAE10W-40. Lastly, a nearly dead battery or insufficient compression can cause starting difficulties, so recharge the battery.
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Mr. Ray Carter MDAug 22, 2025
What to do if Kubota U25-3 Excavators engine suddenly stops?
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  Ashley HensleyAug 22, 2025
  If your Kubota Excavators engine suddenly stops, it might be due to a low fuel level. Check the fuel and add more if necessary. Also, purge the fuel system.
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Destiny CannonAug 25, 2025
Why is the power too low in my Kubota U25-3 boom, arm, bucket, drive, swing and dozer?
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  Penny ReedAug 26, 2025
  If your Kubota Excavators lack power in the boom, arm, bucket, drive, swing, or dozer, it could be due to a low hydraulic oil level. Add oil to the system. Also, check for leakages in hoses and/or joints, and replace any leaking hose or joint.
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Charles HernandezAug 28, 2025
Why does my Kubota U25-3 engine have insufficient power?
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  jonesmistyAug 28, 2025
  If your Kubota Excavators engine has insufficient power, check the fuel level and add fuel if necessary. Also, inspect the air cleaner for clogs and clean the air filter element if needed.
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Teresa KellySep 1, 2025
What causes abnormal exhaust gas color in Kubota U25-3 Excavators?
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  Amanda BarnesSep 1, 2025
  If the exhaust gas color is abnormal in your Kubota Excavators, it could be due to poor fuel quality. Use high-quality fuel. It could also be caused by too much engine oil, so drain the engine oil to the prescribed level.
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Randy HermanSep 4, 2025
Why does the drive direction deviate in Kubota U25-3 Excavators?
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  Ryan JohnsonSep 4, 2025
  If the drive direction of your Kubota Excavators deviates, it could be because the track is blocked by stones; remove them. Alternatively, the track may be too loose or too tight; adjust it accordingly.
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smithvictorSep 7, 2025
What to do if swing motor and front attachment does not work in Kubota Excavators?
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  Chad SmithSep 7, 2025
  If the swing motor and front attachment of your Kubota Excavators do not work, check if the lock lever is in the "LOCK" position. If so, move the lock lever into the "UNLOCK" position.
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Matthew WilliamsSep 12, 2025
What to do if the drive lever does not move in Kubota Excavators?
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  Courtney NolanSep 12, 2025
  If the drive lever of your Kubota Excavators does not move, check if the lock lever is in the "LOCK" position. If it is, bring the lock lever into the "UNLOCK" position.