Grease loaded grapple dampener

Details Grease loaded grapple dampener Grease loaded grapple dampener

B - Operations, Transporting

66

C

B66C 1/42 (2006.01) B66C 3/00 (2006.01) F16F 7/02 (2006.01) F16F 7/04 (2006.01)

Patent

CA 2052616

A grease loaded dampener for the swivel link of a grapple skidder is mounted to the pivot pin of the swivel link. The dampener is provided with a two sets of friction plates. The friction plates are compressed by an annular piston that is slidably mounted to a bushing that is secured to the pivot pin. A grease zerk supplies grease to the cylinder formed between the bushing and the annular piston. A pressure relief valve is in fluid communication with the cylinder and prevents the cylinder from becoming over pressurized unduly compressing the friction plates.

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