Genuine repair parts for F6 Hydraulic Breaker Parts by FRD Kent

Maintenance and Repair Guide for Furukawa (FRD) Hydraulic Breaker

Maintaining and fixing your Furukawa (FRD) hydraulic breaker is crucial for ensuring its longevity and optimal performance. Below is a detailed guide based on the Furukawa Rock Drill USA manual.

Long-Term Storage (More than Three Weeks)

• Elevate the Breaker: Place the breaker onto blocks with the top elevated.
• Remove Working Steel: Refer to the Working Steel section in the manual. Apply rust preventive oil inside the breaker.
• Discharge Gas: Remove the plug from the backhead charge port and discharge the gas.
• Push Piston: Push the piston completely into the cylinder to prevent rust.
• Indoor Storage: Store the breaker indoors in a dry, warm environment. If not possible, use a raised platform and cover it with a waterproof cloth.

Daily Maintenance

• Grease: Every 2-3 hours or more frequently if needed, using 15-25 shots with a 0.9 cc/stroke grease gun. Do not overload.
• Inspection: Check for loose, missing, or damaged bolts, nuts, valves, charge port plugs, caps, hydraulic hoses, fittings, oil leaks, and rubber plugs.

Weekly Maintenance (Every 50 Hours)

• Hydraulic Oil Level: Check in the carrier's reservoir.
• Torque Check: Ensure all bolts, nuts, plugs, caps, and valves are properly torqued.
• Working Steel: Inspect for cracks and damage.

Monthly Maintenance (Every 150 Hours)

• Front Bushing: Check for wear.
• Rod Pins and Working Steel: Inspect wear surfaces and remove burrs.
• Backhead Charge: Check and charge if necessary.
• Operating Pressure: Check and change the carrier's return filter.

Semi-Annual Maintenance (Every 600 Hours)

• Hydraulic Oil: Check the condition and change the carrier's return filter.
• Replace Pins: Rod and stop pins should be replaced.
• Accumulator Gas Charge: Check and recharge if needed.

Annual Maintenance (Every 1200 Hours)

• Disassemble and Reseal: Full disassembly and resealing of the breaker.
• Check Components: Piston, liner, valve, seal retainer, and front bushing for wear.
• Replace Through Bolts: Ensure all bolts and nuts are undamaged and properly replaced.

Hydraulic Fluids and Greases

• Hydraulic Oil: Proper selection and contamination control are crucial.
  • Oil Types: Shell Tellus S2 MX 68/46, Esso Nuto H68/46, Mobil DTE 26/25.
• Grease: Use NLGI NO.2 grease like Shell Gadus S2 G 220-2 or Mobil Mobilplex 48.

Charging Procedures

Accumulator Charging

• Temperature Check: Charge the breaker at its current temperature.
• Connect Hose Assembly: To nitrogen tank and adjust regulator.
• Charge Adapter: Install and ensure O-ring is seated.
• Charging: Open shut-off valve and charge to the appropriate pressure.

Backhead Charging

• Horizontal Position: Ensure the breaker is horizontal with working steel fully extended.
• Connect Adapter and Hose: Attach to nitrogen tank.
• Charging: Follow similar steps to the accumulator procedure.

Torque Specifications

• General Rule: Torque all bolts in sets and use anti-seize compound.
• Specific Torques:
  • Through Bolt Hex Nut: 650 ft-lbs
  • Accumulator Mounting Bolt: 180 ft-lbs
  • Lower Cross Bolt: 360-600 ft-lbs

Troubleshooting Guide

• No Hammering: Check control valve connections, supply hoses, oil flow, operating pressure, and backhead pressure.
• Slow or Erratic Operation: Inspect hydraulic oil temperature, flow, pressure, down pressure, grease levels, and steel engagement.
• Weak Hammering: Adjust control valve, check pump and relief valve, replace contaminated oil, and inspect for leaks.
• Excessive Oil Leakage: Replace the seal kit if oil consumption exceeds one pint per hour.
• Pressure Hose Issues: Recharge accumulator, replace diaphragm, or shuttle valve if necessary.

Importance of Genuine FRD Parts

Using genuine FRD parts is essential for maintaining the integrity and performance of your hydraulic breaker. Authentic parts are specifically designed and tested to meet the high standards set by Furukawa Rock Drill USA. They ensure compatibility, reliability, and longevity of your equipment.

Purchasing genuine FRD parts from an authorized dealer like Danse USA guarantees that you are getting the quality and performance expected from your hydraulic breaker. Authorized dealers provide not only original parts but also expert advice and support for your maintenance needs. Using non-genuine parts can lead to poor performance, increased wear and tear, and potential damage to your breaker, resulting in higher costs and downtime.

By following these maintenance and repair procedures and using genuine parts, you can ensure that your Furukawa hydraulic breaker remains in optimal working condition, reducing downtime and extending the lifespan of the equipment. Regular checks and proper storage are key to preventing major issues and maintaining the breaker’s performance.