Cat 315 CL excavator bucket curls by itself

Posted in the Caterpillar Forum


Hesperia, CA

#1 Oct 1, 2012
engine running, bucket works fine in both directions but if curled out, it will by itself slowly curl in.

Marion, IN

#2 Oct 2, 2012
I would check the hydraulic control valve for the bucket. Sounds like it's not returning to "center" when you release it, allowing the bucket to slowly curl in.

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