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My pnumatic h.k porter 9190 cutter piston not returning to

My pnumatic 9190 cutter piston not returning to oringal position after cut it jus stick up

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On the 9190 HKP cutter there are 2 large springs. they may have been stretched or even missing. These return the jaws to the open position

Posted on Jun 07, 2017

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Usual cause of stuck pistons in air operated tools is lack of lubrication. Most you have to either put drops into the air inlet before each day's use or use a mist oiler.

Lube your tool at least twice the amount recommended and try to get it to cycle. After it starts to work, make sure you lube it daily.

It is possible that the O-rings were damaged by insufficient lube oil.

Posted on Oct 02, 2009


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Posted on Jan 02, 2017

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