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08

2022

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06

Lubrication cycle for excavator rock bucket shears

We’ve already learned about hydraulic shears—just as we open our mouths wide to eat, these tools are used to bite through metal and other materials found in vehicles. They’re excellent for demolition and rescue operations. Hydraulic shears feature a new design and sophisticated surface treatment processes, made from high-strength steel and aerospace-grade high-strength aluminum alloys. As a result, they offer high strength, compact size, and light weight. We all know that excavator jaw shears are designed for heavy-duty applications and can easily cut through metal. However, it’s crucial to ensure proper lubrication of excavator jaw shears. So, what’s the recommended lubrication cycle for each part of an excavator jaw shear? Let’s find out together with the editor from Weifang Weiyue Machinery. We hope this information will be helpful to you.


  We’ve already learned about hydraulic shears—just as we open our mouths wide to eat, these tools are designed to bite through metal and other materials commonly found in vehicles. They’re excellent for demolition and rescue operations. Hydraulic shears feature a novel design and sophisticated surface treatment processes, made from high-strength steel and aerospace-grade high-strength aluminum alloys. As a result, they boast high strength, a compact size, and a lightweight profile. We all know that excavator jaw shears are capable of cutting through metal even under extremely heavy-duty conditions. However, it’s crucial to ensure proper lubrication of excavator jaw shears. So, what exactly is the recommended lubrication cycle for each part of the excavator jaw shear? Let’s find out together. We hope this information will be helpful to you all.

  1. The gear surfaces inside the blocking plate should be lubricated with grease every three months.

  2. The grease nipples on the excavator’s grapple shear should be lubricated with grease every 15 to 20 days.

  3. For parts with relatively high usage frequency and those prone to wear—such as large open gears, jaw plates, jaw plate frames, upper rollers, lower rollers, brake steel plates, and friction pads—where there is relative motion, lubricating oil should be added once per shift.

  Different parts of the excavator’s boom shear require different types of lubricants, and their lubrication intervals also vary. Excavators have brought convenience to our daily rescue operations and made valuable contributions to our work.