DMC piston check valves

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#24950 - 10/10/18 01:36 PM DMC piston check valves
Joined: Oct 2016 Posts: 38 Philelevman newbie
Philelevman newbie Joined: Oct 2016 Posts: 38 St Louis Mo	I have a telescopic jack on a Thyssen DMC and the pistons will not resync. Ordered new piston check valves but I've yet to perform this task. Any helpful suggestions? Philelevman

#24967 - 10/11/18 08:39 PM Re: DMC piston check valves [Re: Philelevman]
Joined: May 2013 Posts: 224 Jcjmowrey enthusiast
Jcjmowrey enthusiast Joined: May 2013 Posts: 224 Atlanta ga	Order seal kits as well. That’s more than likely your problem. If all else fails, read the instructions

#25005 - 10/16/18 08:28 PM Re: DMC piston check valves [Re: Jcjmowrey]
Joined: Oct 2016 Posts: 38 Philelevman newbie
Philelevman newbie Joined: Oct 2016 Posts: 38 St Louis Mo	Thanks. We did. The pistons are carrying oil so not sure that is keeping us from synchronizing with zero pressure but I figured if I'm taking it apart I'm not gonna do it twice lol Philelevman

#25028 - 10/19/18 05:22 AM Re: DMC piston check valves [Re: Philelevman]
Joined: Apr 2018 Posts: 1 Daniel freeland stranger
Daniel freeland stranger Joined: Apr 2018 Posts: 1	order the internal seals for the bottom of the pistons. 3 stage tele has 2 internal seals and the 2 stage has 1 internal. Per jack

#25029 - 10/19/18 10:37 PM Re: DMC piston check valves [Re: Philelevman]
Joined: Dec 2015 Posts: 1,536 Indirtwetrust ElevatorPractitioner
Indirtwetrust ElevatorPractitioner Joined: Dec 2015 Posts: 1,536 Local 18	Make sure you use Gorman packing.

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