JCB 19C-1 Mini Excavator

The JCB 19C-1 Mini Excavator is a robust and popular machine for various construction tasks. However, like any equipment, it may experience issues during operation. Below is a list of common problems associated with the JCB 19C-1 Mini Excavator, their potential causes, and recommended solutions:


1. Hydraulic System Issues

  • Symptoms: Slow or unresponsive hydraulic functions, unusual noises, or leaks.
  • Causes:
    • Low hydraulic fluid levels.
    • Contaminated hydraulic oil.
    • Worn-out or damaged hydraulic hoses or seals.
    • Blockages in the hydraulic system.
  • Solutions:
    • Check and refill the hydraulic fluid to the recommended level.
    • Replace the hydraulic fluid if contaminated, and clean the hydraulic system.
    • Inspect hoses and seals for wear and tear; replace as necessary.
    • Flush the system to remove blockages.

2. Engine Problems

  • Symptoms: Difficulty starting, loss of power, or excessive smoke.
  • Causes:
    • Clogged air filters.
    • Faulty fuel injectors or fuel contamination.
    • Weak or dead battery.
    • Overheating due to coolant issues.
  • Solutions:
    • Clean or replace air filters regularly.
    • Ensure the fuel is clean and of high quality; replace fuel filters if needed.
    • Check and charge or replace the battery.
    • Inspect the cooling system, ensuring proper coolant levels and no blockages.

3. Electrical System Failures

  • Symptoms: Malfunctioning lights, display panel, or controls.
  • Causes:
    • Loose or corroded electrical connections.
    • Blown fuses or faulty relays.
    • Defective alternator or starter motor.
  • Solutions:
    • Inspect and tighten all electrical connections; clean corrosion with contact cleaner.
    • Replace blown fuses and test relays for proper function.
    • Check and replace the alternator or starter motor if required.

4. Track and Undercarriage Wear

  • Symptoms: Uneven movement, excessive noise, or difficulty in turning.
  • Causes:
    • Worn track pads or sprockets.
    • Loose or misaligned tracks.
    • Insufficient lubrication of moving parts.
  • Solutions:
    • Inspect and replace worn tracks or sprockets.
    • Adjust track tension according to the manufacturer’s guidelines.
    • Lubricate moving parts in the undercarriage regularly.

5. Boom and Arm Issues

  • Symptoms: Reduced lifting capacity, jerky movement, or structural cracks.
  • Causes:
    • Hydraulic cylinder problems.
    • Loose pivot pins.
    • Overloading or improper operation.
  • Solutions:
    • Check hydraulic cylinders for leaks or damage; repair or replace them if needed.
    • Tighten or replace worn pivot pins.
    • Ensure proper loading practices and adhere to the machine’s weight limits.

6. Control Lever Problems

  • Symptoms: Controls are hard to move or unresponsive.
  • Causes:
    • Debris or dirt in the control system.
    • Worn-out control cables.
    • Hydraulic fluid contamination affecting joystick operation.
  • Solutions:
    • Clean the control levers and surrounding areas.
    • Replace worn or damaged control cables.
    • Flush and replace the hydraulic fluid if contamination is suspected.

7. Overheating

  • Symptoms: Engine overheating light on, loss of performance, or smoke.
  • Causes:
    • Blocked or damaged radiator.
    • Insufficient coolant.
    • Faulty thermostat or water pump.
  • Solutions:
    • Clean the radiator and ensure it is free from blockages.
    • Top up or replace the coolant.
    • Test and replace the thermostat or water pump if faulty.

8. Fuel System Blockages

  • Symptoms: Engine stalling, reduced efficiency, or difficulty starting.
  • Causes:
    • Clogged fuel filters.
    • Air trapped in the fuel system.
    • Contaminated or old fuel.
  • Solutions:
    • Replace fuel filters regularly.
    • Bleed air from the fuel system.
    • Use clean, fresh fuel and ensure tanks are clean.

Preventative Maintenance Tips

  1. Daily Checks: Inspect fluid levels, hoses, tracks, and filters before operation.
  2. Regular Servicing: Follow the manufacturer’s recommended maintenance schedule.
  3. Proper Operation: Avoid overloading, aggressive use, and ensure trained operators handle the machine.
  4. Storage: Store the excavator in a clean, dry location when not in use.

These steps should address most common issues with the JCB 19C-1 Mini Excavator. For persistent problems, consulting the operator’s manual or seeking professional assistance – That’s Us!

Spares & parts bibliography

For all spares and parts we recommend our sister company – HTS Spares

For all JCB excavator parts: JCB Style Excavator Spares | All products shown are quality replacement parts and are not genuine JCB products. 

Spoke to Jeremy at HTS Plant on Monday morning about a generator they had in stock agreed a deal, arrived onsite Tuesday lunchtime "excellent service" Hard to find likeminded honest genuine company’s these days HTS are spot on. Jeremy even took the time to phone making sure everything was ok.
Paul B, Developer in Asselby