Installing crushing clamps on an excavator is quite common, but did you know there are crucial steps to take beforehand to prevent potential issues? If impurities or dirt get into the breaker pipeline, they can easily infiltrate the crushing pliers clamp. The precision components like the piston, oil cylinder, and reversing valve are designed with tight tolerances, so any foreign matter can quickly damage these parts.
For instance, consider the image below showing the importance of maintaining cleanliness in these systems. [Insert Image]
Let me walk you through the proper steps to prepare before installation:
1. **Initial Cleaning:** After connecting the breaker hammer pipelines, shut off the Valves on both sides of the excavator's arm. Have the operator start the excavator and keep the throttle at mid-range. Press the breaker hammer switch in the cab for about a minute, then release for another minute, repeating this cycle for around 3-5 minutes. Gradually open the oil inlet valve using a wrench while standing behind it to avoid high-pressure oil exposure. Expect dirty oil to spray out—this is normal as it flushes out contaminants. Ensure the hydraulic oil becomes clear before closing the valve. Repeat the process for the return line valve on the other side. If the oil remains unclear, restart the cycle until clean.
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2. **Secondary Cleaning:** Once the initial cleaning is done, connect a new breaker hose supplied by the manufacturer between the oil lines at both ends of the arm. Open the valves and activate the breaker system briefly again, following the same interval pattern (press-release-stop). This ensures deeper cleaning. Afterward, the excavator’s filter element will trap remaining particles during normal operation. Now the two-way pedal valve can be installed safely.
3. **Final Checks & Maintenance:** Before activating the crushing pliers, verify the hydraulic pressure matches the specifications for your chosen model. Apply grease regularly to the lower cylinder’s grease nipple, hammering for about 2-3 hours daily and greasing every few hits. Aim for around 15 pump strokes each time.
Remember, thorough preparation prevents costly repairs down the road. Always prioritize safety and meticulousness when handling heavy machinery.
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