[TheForge] Kinyon style hammer help

[David E. Smucker]

Todd,  A guess -- something is getting hot and getting tight.  Could it be 
your ram guides?  Could be your air cyclinder?  Could it be you main spool 
valve?   What feels hot to the touch?

Dave Smucker

-----Original Message----- 
From: Todd Rich
Sent: Wednesday, October 19, 2011 9:43 AM
To: Blacksmithing List Sponsored by ABANA
Subject: [TheForge] Kinyon style hammer help


Several years ago, I built a power hammer based off of the Kinyon plans.
I did the modification with the regulator to balance strike and return
pressures.

Anyway, it seems to have a bit of a problem.  After running for about 15
minutes, the speed of the ram slows way down.  This doesn't seem to have
anything to do with the switch sticking (I installed a line oiler right
before the sensor switch), or the height of the work.  It seems to be
mostly time of use related.  I need some help in figuring out what is
wrong and fixing it. I'm willing to post pictures or run tests as
needed.

Here is a link to a video I made shortly after I built it.

http://www.youtube.com/watch?v=KkUFgoU_LO0

                    Todd Rich
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