We are a small company in Northern Canada. We bought a old Thomsen pumper truck. The modell is a 875 and we are looking for a manual for the pump. Appreciate all help I can get.

There will not be much in print available, but there are some of Thomsen's original patents online showing the flapper valve, transverse hydraulic cylinders etc. Look up Marvin & Richard Bennett's videos that Todd has here on CP.com and talk to some of the older pump operators who ran them.There is still an 845 operating in my area . GL Concrete Pumping Vankleek Hil On.

Thank you very much for the info. I will get in contact with GL maybe they still have a manual.

I have a parts manual let me know if that would help.

Yes that would help. Im looking to get as much infoarmation as possible about this pump. I like to keep it running.

Smithsonian? lol

I have one. Its even in surprisingly excellent condition considering. 

Give me a call or message me (907)202-3288

Hey Too Tall : I would buy a copy from you , for my library :-)

                    Always something to learn.

                    My email <monkmaneric@yahoo.ca>

Are you familiar with Thomsen mechanical ball valve pumps? Similar to the mayco c30. I am trying to find out the model I have and where i can get parts. jackpumping@gmail.com