Kubota KC120HC - User Manual

Questions and Answers

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Nathan JohnsonAug 7, 2025
Why is the cylinder power insufficient in my Kubota Construction Equipment?
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  kellyderekAug 7, 2025
  If the cylinder power of your Kubota Construction Equipment is insufficient, possible causes include insufficient oil (check and replenish), air intrusion into the suction pipe (check and tighten), or improper oil viscosity (replace with specified oil). Other potential issues are a released safety valve (disassemble, check, and clean), an excessively worn pump (check, repair, or replace), a defective piston (replace cylinder), defective piston packing (replace as assembly), oil leaks from the oil pressure hose (replace), oil leaks from the cylinder packing area (check and replace as assembly), defective or worn control valve spool or valve (check, repair, or replace), loose pump fittings (check and tighten), or oil leaks from piping (check and tighten or replace).
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Brian JimenezAug 13, 2025
How to troubleshoot abnormal noise in Kubota Construction Equipment?
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  Brittany LeeAug 13, 2025
  If you hear abnormal noise from your Kubota Construction Equipment, it could be due to several reasons. The oil level might be insufficient, so supply oil up to the specified level. Air could be intruding into the suction oil, so check for defects and repair them. Pipes, hoses, or joints might be deformed, requiring repair or replacement. The oil viscosity might be too high, so use the specified oil. Pump gears or bearings could be worn out, requiring disassembly, inspection, and replacement. Lastly, a geared pump might be in cavitation due to cold weather, so perform a warm-up operation.
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Douglas MorrowAug 17, 2025
What to do if it takes much time to raise the deck body on Kubota Construction Equipment?
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  Gary CurtisAug 18, 2025
  If it takes much time to raise the deck body of your Kubota Construction Equipment, it could be due to several reasons. The power package may be excessively worn, requiring repair or replacement. The engine speed may be insufficient, so increase the speed. The piston or packing may be worn out and need replacement as an assembly. The control valve spool may be worn out and need replacement. There could be an oil leak out of the cylinder or piping, so check and repair or replace. The safety valve may be released, so disassemble, check, and clean.
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Kyle BrownAug 23, 2025
Why is the deck body retaining insufficient in Kubota Construction Equipment?
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  Adrian DanielAug 23, 2025
  If the deck body retaining is insufficient on your Kubota Construction Equipment, it could be due to several reasons: * Piston packing is worn out or broken: Replace as assembly. * Oil is leaking from valve spools area: Check and repair or replace. * Oil is leaking from piston: Check and replace as assembly. * Oil is leaking from oil pressure hose: Replace.
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Erin SummersAug 27, 2025
What to do if the piston rod does not move when control lever is operated on Kubota Construction Equipment?
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  sean12Aug 28, 2025
  If the piston rod does not move when the control lever is operated on your Kubota Construction Equipment, it could be due to a defective geared pump (disassemble, check, and repair or replace) or a defective cylinder piston (replace as assembly).
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Emily WilkersonSep 1, 2025
Why is the deck body movement opposite to the control lever operation on Kubota Construction Equipment?
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  Timothy FloydSep 1, 2025
  If the deck body movement is opposite to the control lever operation in your Kubota Construction Equipment, the piping is wrong. Reverse the oil pressure hose position.