As a leading manufacturer of hydraulic breakers (also known as hammer breakers or rock breakers), we understand how frustrating it is when your equipment fails to operate. A non-firing hydraulic breaker can halt construction, demolition, or mining projects, leading to costly downtime. If you’re wondering, “Why is my hydraulic breaker not firing?” this article outlines common causes and practical solutions to get you back on track quickly.
Common Reasons Your Hydraulic Breaker Isn’t Working
1. Insufficient Hydraulic Flow or Pressure
Hydraulic breakers require specific oil flow and pressure to operate. If your carrier machine (excavator, skid steer, etc.) doesn’t supply the correct flow rate or pressure, the breaker may not fire.
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Solution: Check your carrier machine’s hydraulic settings. Ensure it meets the breaker’s required flow and pressure specifications (refer to your product manual). Adjust the hydraulic system settings if necessary.
2. Problems with Hydraulic Fluid
Dirty, contaminated, or low hydraulic fluid can prevent the breaker from functioning.
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Solution: Check the hydraulic fluid level and quality. Replace contaminated fluid and clean or replace filters regularly. Use the recommended hydraulic oil type for your system.
3. Air in the Hydraulic System
Air trapped in the breaker or hydraulic lines can cause spongy operation and failure to fire.
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Solution: Bleed the air from the system. Follow the manufacturer’s instructions to purge air from the breaker and hoses.
4. Clogged or Damaged Lines and Valves
Debris, dirt, or internal damage can obstruct hydraulic lines or valves, restricting oil flow.
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Solution: Inspect lines and valves for blockages or damage. Clean or replace components as needed. Always use clean hydraulic connections to avoid contamination.
5. Tool Stuck or Wear Issues
If the tool (moil point/chisel) is stuck, worn, or broken, it can prevent the piston from moving correctly.
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Solution: Inspect the tool and replace it if worn or broken. Ensure the tool is properly lubricated and free to move in the bushings.
6. Accumulator Problems
Some breakers use an accumulator to assist with operation. If the accumulator is faulty or loses precharge, the breaker may not fire.
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Solution: Check the accumulator precharge pressure. Recharge or replace it if necessary.
7. Control System Issues
Faulty solenoid valves, control switches, or electrical problems (in automated systems) can disrupt operation.
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Solution: Test electrical connections and switches. Replace any faulty components.
8. Piston or Seal Damage
Internal damage to the piston or seals can lead to loss of pressure and hammer action.
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Solution: Disassemble and inspect the breaker for worn or damaged parts. Replace seals and other components as needed.
Regular Maintenance Tips to Avoid Problems
To minimize the risk of your hydraulic breaker failing:
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Follow the manufacturer’s maintenance schedule.
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Lubricate the tool regularly.
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Check and clean hydraulic connections before use.
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Use clean, high-quality hydraulic fluid.
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Store the breaker properly when not in use.
Need Professional Support?
If you’ve tried these solutions and your hydraulic breaker still isn’t firing, it might be time for professional service or replacement parts. As a specialized factory with years of experience, we offer reliable, high-performance hydraulic breakers and genuine spare parts for all major brands.
Contact us today for expert advice or to explore our product range – we’re here to help keep your projects running smoothly.
