Question about Electric Demolition Jackhammer
Motor works but hammer has very little action. I have disassembled everything loks fine including piston ring. Should the crank shaft be submersed in oil.Should there be a vacuum in the inner cylinder?
Usally their is grease packed in the hammer part,you can usally see a plastic type bung(plug)on outter casing
Posted on Dec 27, 2009
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Posted on Jan 02, 2017
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