2006 32 meter schwing no volume control...tried the panel,hard wire remote, and wireless. there is a knob i tried to open/close on the stroke  limitting valve control box  no control....machine still strokes whatever it feels like it, sometimes 100% sometimes 30%  pump is useless , trying to pump walls last 4 weeks. called schwing they said  you need to be pumping concrete in order for the volume control to work ?>???????/ need help............. I run putzmeisters just trying to help a contractor who bought a schwing................this should be a simple problem not three weeks down!!!!!!!!!!!!with tech support........glad we own putzmeisters...............

electrical was eleminated w/ panel ,wire remote and wireless functions 12 volts is fine at the coil and new cartrige was installed..no manual override. needs to be a signal from the hydraulic brain or swash plate...but then again, I don't work on schwings..............

Hi:

If you have a manual volume control valve in your pump (3 side plastic knob threaded into a control valve) you can follow the hidraulic lines to the pumps, there should be a connection "tee" into both pumps, if you plug the hose and this connection to the pumps you will be bypassing the volume control circuit, plug like this start your pump and try first with water to check if is in full volume, if is like that your volume control is faulty, if not it may be your pumps regulators, usually contamination or wear and tear.

I hope this help you

                   Jorge

are you in by-pass mode? red handle pointing which way? 

If you adjusted the knob I am thinking about you need to be in bypass for it to work. Please supply the SN so we can talk about the correct system. Give me a call so we can finish this issue.

Jeff Popa

Technical Service Manager and Spare Parts Specialist

Off – 651/429/0999 X 213

Direct – 651/653/4213

Cell – 612/845/6981

jpopa@schwing.com

thanks ...the hose at the tee.. when we stroke the pump i cracked that line no hydraulic oil...tried bypass mode.nothing.main line going to limit control no oil.....

popa you have been working with lance for three weeks problem still not solved..............no reason for a 2006 to be down for three weeks........thanks......96740

just had this problem with a 2006 45m , had a blown o-ring on the presuure relief valve on the brain, pump should start overheating the hydraulic oil if its a vector system it will start destroking the pump, also they have the manual adjustment you need to screw it all the way in and out to make sure the spring isnt hung up on the spool or just contaminated , there has been problems with water getting in hydraulic oil causing rust issues on springs and componenets in the volume control.

sk 38 relief valve turn valve on hopper side of brain, you can inbox me your phone # and i'll call you, once you get o-rings in , doesnt take long at all to fix.

I had a problem once with my 02. It lost almost all volume, i had to hand manually hand valve the pump.

It turned out to be a clogged air regulator. Air runs your hand pump valves. There is a guage on the lower brake air tank this is for the hand valve. Check and make sure you have proper air pressure. I fixed mine with just a rap with a hammer they get clogged sometimes.