hello,i bought a mayco st 30 concrete pump.during cycle the pump sometimes stalls on one pump cylinder,which may indicate one of the directional valve needs replacement.how would i know which directional valve is bad?do it carry more than one directional valve?if it carry more than one directional valve,do both the valve looks the same,?would it be easier changing both valve instead of trying to figure out which valve is bad? Also the shuttle needs adjustment.how do i adjust the shuttle?does adjusting the shuttle means changing the shuttle valve?need some help figuring this out.

Call George Clingerman at Transcrete America 323.662.9615 he is the expert on Mayco ST30 as he designed the hydraulic circuit. They also sell parts to suit all Mayco models.

Digger I got a better idea get a backhoe dig a big hole push it in back fill problem over.

Digger how are you doing

I think Ed secrectly loves Mayco pumps.... Just sayin

Hi Ho Ed,

All is well, the Mayco ST30 is a much better pump than your C30HD ... what an experience? 

It will only be something simple with his pump. Do you miss pumping?

Digger good to hear you going strong concrete pumping I don't mis at all, just the friends I made along the way,then theres one or to want-a-bes I never heard from that show up now and then crete get my drift, I hope all of the Owners stay focused on the industry because you guys remember 2008 downturn, 2016 Elections don't be fooled. I better stop now.  Digger stay out of trouble I wish I could have met up with you.

Headin down to Talldega for Nascar race in Oct. If your around Big Ed.

I PM'd you on this with a number for support.