Caterpillar - Cat

Center-Lock Pin-Grabber Coupler

The Center-Lock Pin-Grabber Coupler for Caterpillar hydraulic excavator models 311 to 385 uses an over-center locking mechanism and two hydraulic locking features to assure positive work tool attachment.

  • Remains positively closed until the operator activates the in-cab switch and extends the bucket cylinder
  • Secondary lock distinctly visible from the cab for easy indication of the coupler's status
  • Tools can be engaged and disengaged with the boom and stick at full extension
  • Accommodates the same Cat work tools as previous versions,┬áplus a range of other brands of buckets and tools

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