Beilite Hydraulic Breakers Maintenance and Operation: 3 Key Things You Should Know

1. Daily Inspection: The First Step to a Healthy Breaker

Chisel Inspection: Details Make All the Difference

• Length Specifications: Never use chisels exceeding the specified length. An overly long chisel can cause rebound, damaging the cylinder and piston.

• Chisel Tail Condition:
• Check if the striking face is flat.
• Confirm all R-angles meet standards.
• Inspect the chisel pin slot for compliance.
• Important Tip: If the striking face is uneven or the R-angles are not up to standard, it can easily damage the cylinder and piston.

• Chisel Bushing and Pin:
  • Clean the inside of the chisel bushing and apply grease before installing it into the front head.
  • Ensure the chisel pin is free of burrs and wipe it clean before installation.

Cylinder and Piston Strain Check: Focus on Core Components

• Swing Risk: Chisel swing can lead to cylinder and piston strain.
• Wear Clearance: If the wear clearance between the chisel bushing and thrust bushing exceeds 8mm, replace the bushings immediately.
• Angled Striking: When the piston and chisel are not aligned, angled striking will damage the piston head and chisel tail, leading to cylinder and piston strain. Always avoid angled striking.

Fastener Bolt Inspection: Ensuring Secure Connections

• Daily Check: Daily inspect through-bolts, side plate bolts, and accumulator and valve seat bolts.
• Loosening Treatment: If found loose, always retighten to the specified torque.
• Potential Risks: Failure to check or retighten can lead to bolt breakage, cylinder oil leaks, and strain.

Grease Application: Proper Lubrication for Optimal Performance

• Appropriate Amount: Correct grease application is vital. If there's too much grease on the piston head and chisel tail surfaces, it can cause slippage and swing, damaging the cylinder and piston.
• Excessive Harm: Excessive grease can enter the striking chamber, leading to hydraulic oil degradation, dust seal failure, and cylinder and piston strain.

Hydraulic Oil Check: The "Blood" of the Hydraulic System

• Shift Check: Check the hydraulic oil level and cleanliness every shift.
• Replacement Cycle:
  • Replace hydraulic oil after the first 500 hours of operation.
  • Subsequently, replace it every 1500 hours.
  • Always ensure the oil level is sufficient.
• Abnormal Striking: Insufficient or contaminated hydraulic oil, or untimely filter replacement, can lead to abnormal striking and damage to the cylinder and piston.

Return Filter Check: Keeping the Oil Flow Clear

• Replacement Cycle:
  • Replace the return filter after the first 250 hours of operation.
  • Subsequently, replace it every 500 hours.
• Clogging Risk: A clogged or restricted filter can lead to cylinder and piston damage.

2. Operating Precautions: Proper Operation for Extended Lifespan

Warm-up: Waking Up Your Equipment

• Warm-up Time: Operate at a low gear for at least 10 minutes to warm up, ensuring the hydraulic oil temperature reaches 50-70°C (122-158°F).
• Insufficient Lubrication: Insufficient lubrication can lead to cylinder and piston strain.

Oil Temperature Check: Beware of High Temperature Alarms

• High Temperature Action: When the oil temperature reaches 80°C (176°F), stop operation immediately and contact your local service provider.
• High Temperature Hazards: High temperatures can cause seal failure, oil leaks, and cylinder and piston strain.

Avoid Blank Firing: Prevent Unnecessary Wear

• Timely Stop: Stop operation immediately after breaking the rock; avoid continuous blank firing.
• Blank Firing Hazards: Blank firing can lead to through-bolt, front head assembly, chisel pin, and chisel breakage, as well as damage to the cylinder and piston.

Avoid Continuous Striking: Give Your Equipment a "Breather"

• Striking Duration: Do not strike the same point for more than 1 minute continuously.
• Continuous Striking Hazards: Can lead to chisel tip annealing, deformation, accelerated wear, increased oil temperature, and damage to the cylinder and piston.

Avoid Prying or Pulling: Protect the Chisel and Front Head

• Stop Operation: When the chisel penetrates 2/3 of the material's depth, stop operation and naturally shift to the next striking point.
• Prying Hazards: Strictly avoid prying or pulling, as this can lead to chisel or front head assembly breakage.

Do Not Use as a Lifting Tool: Specialty Use Only

• Strict Prohibition: Do not use the breaker to lift or move heavy objects or for other dangerous actions.
• Potential Damage: Can lead to chisel breakage or excavator damage.

No Underwater Operations: Standard Models Are Not Designed For This

• Operation Limitation: Standard model breakers are not designed for underwater operation.
• Underwater Hazards: Underwater operation can cause piston rust and corrosion, further damaging seals, and severely harming the excavator's hydraulic system.
• tips：Except for special models that can be used underwater.

Avoid Extreme Position Operation: Protect Hydraulic Cylinders

• Operation Exclusion Zone: Do not perform striking operations when the excavator's hydraulic cylinders are in extreme or end positions.

Avoid Crushing Operations: Prevent Improper Impact

• Operation Exclusion Zone: Do not use the breaker to crush or impact objects.
• Potential Damage: Can damage the breaker, chisel, and excavator arm.

Vertical Striking: Ensure Efficiency and Safety

• Optimal Angle: The chisel should contact the object's surface at a 90° angle.
• Non-Vertical Striking Hazards: Non-vertical striking can lead to chisel breakage, abnormal bushing wear, and cylinder and piston strain.

Correct Operation: Adjust Flexibly, Improve Efficiency

• Slight Adjustment: When striking, slightly adjust the angle (no more than 5°) to clear dust from the chisel tip.
• Excessive Angle Hazards: A large amount of dust will weaken the impact force and reduce work efficiency; if the angle is greater than 5°, it can lead to chisel breakage.

3. Other Considerations: Storage and Maintenance Schedule

Short-Term Storage: The Breaker's Brief Rest

• Storage Posture: For short-term storage, place the breaker vertically with the chisel pressed against the ground to keep the piston centered within the cylinder.
• Improper Storage Consequences: Incorrect storage can lead to seal deformation, piston rust, or damage.

Long-Term Storage: Your Equipment's "Hibernation" Guide

• Storage Steps:
  • Plug the inlet and outlet oil ports to prevent contaminants from entering.
  • Remove the chisel.
  • Place the breaker on dry, flat ground, with the rear head higher than the front head, ensuring good ventilation.
  • Completely release the nitrogen gas.
  • Push the piston into the center cylinder.
  • Apply anti-rust oil to the piston head, chisel, bushings, and other relevant parts.
  • Cover the entire breaker with a waterproof tarp.
• Improper Storage Consequences: Incorrect storage can lead to piston rust, seal failure, oil leaks, or cylinder and piston strain.

Maintenance Schedule: Preventative Care for Peace of Mind

• Seals: Seals replaced beyond their specified time can lead to cylinder and piston damage.
• Bushing Wear: If the wear clearance of the chisel and thrust bushings is too large, it can lead to cylinder and piston strain.

Oil Hose Joint Protection: Prevent Contamination

• Pre-Disassembly Prep: Before disassembling oil hoses, confirm the hydraulic oil temperature and release the hydraulic system pressure.
• Protection Measures: Properly protect oil hose joints to prevent contaminants from entering the cylinder. Otherwise, it could lead to cylinder and piston strain.

Spare Parts Selection: OEM Assurance

• Best Choice: To Achieve Optimal Stability And Service Life Of The Hydraulic Breaker, It Is Recommended To Use Original Spare
• Non-OEM Risks: If Non Original Spare Parts Are Used, Resulting In Malfunction Or Damage, Beilite Will Not Claim Compensation!

Frequently Asked Questions (FAQ)