How to Remove a Hydraulic Breaker from an Excavator? Step-by-Step Disassembly & Tips to Prevent Oil Leak & Dust Ingress

5 Steps to Remove a Hydraulic Breaker

1. Choose a clean, flat area and release pressure

• Move the excavator to stable, clean ground (away from dust, mud, and sand).
• Turn off the engine and main power switch.
• If the breaker has high internal gas pressure, release pressure safely first to avoid oil spraying or air entering the system.

2. Close the shut-off valve to stop oil flow

• Turn the shut‑off valve on the arm 90° to the CLOSED position.
• This greatly reduces oil leakage during disconnection.
  

  Zhengzhou Hanyun Hydraulic Breaker — Furukawa HB30G Assembly Precision & Special Offer for Egypt Customer

3. Loosen the hydraulic hose connections

• Loosen the hose fittings in the correct order.
• Move gently to avoid bending, pulling, or damaging threads.

4. Seal hydraulic lines to prevent dust and dirt

• Plug hose ends with protective caps or plugs.
• Keep hoses elevated; do not let them touch the ground.
• Tie high‑pressure and low‑pressure hoses up with wire to avoid dragging or impact damage.

5. Remove the breaker and store properly

• Disconnect the breaker and reattach the bucket to the arm.
• If stored outdoors:
  • Place the breaker on a wooden board to isolate moisture and mud.
  • Cover it with a waterproof sheet to prevent rust and contamination.
   

Important Notes for Disassembly

• Prevent contamination first: Dust and sand cause valve seizure and seal wear.
• Safety first: Always close valves and release pressure before disconnecting hoses.
• Protect hoses: Keep ends sealed and off the ground.
• Good storage: Extends service life and makes next installation faster and cleaner.