Troubleshooting and Maintenance Guide for SLYM Hydraulic Breakers: Common Issues and Solutions

Essential Safety Notice

Before performing any maintenance or disassembly on your hydraulic breaker, always release the gas from the nitrogen chamber first to prevent injury.

I. Weak Impact Force

If your breaker is underperforming, check the following:

• Low Engine Speed: Adjust the throttle control knob to the recommended RPM.

• Insufficient Nitrogen Pressure: Check the nitrogen chamber and accumulator. If gas has leaked, refill to specified levels.

• Relief Valve Abnormalities: Verify the safety pressure settings and adjust if necessary.

• Chisel Damage: Use a grinder to smooth out damaged areas on the chisel and bush.

II. Breaker Fails to Strike

If the hammer stops working entirely, investigate these factors:

• Incorrect Relief Valve Pressure: Readjust the relief valve to the standard operating pressure.

• Excessive Nitrogen Pressure: Bleed the gas until it reaches the regulated level.

• Oil in the Gas Chamber: This indicates a seal failure; replace the step seals immediately.

• Mechanical Damage: Inspect the piston, cylinder, and valves for scoring. Refurbish contact surfaces with fine sandpaper.

• Connection Errors: Ensure high and low-pressure hoses are not reversed and that stop valves are fully open.

III. Irregular or Unstable Striking

• Back Pressure Issues: High back pressure in the return line can cause instability. Inspect, clean, or replace the filter elements and cooler.

• High Oil Temperature: Clean the cooler or switch to high-viscosity hydraulic oil.

• Low Oil Level: Top up the hydraulic fluid to prevent cavitation.

IV. Gas Leakage Diagnosis