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. 

The guys at HTS Plant Sales are great. They obviously have a wealth of experience in compact equipment which makes dealing with them very easy.
Construction Company, Leeds