JosephGozo
Member
Equipment
Kubota B7001 + an ever growing list of attachments (restored / homemade) :(
Hi,
I am in the process of building a loader for my B7001. I am following some measurements i obtained from "Lil Foot". As far as cylinders go i have ordered a set with sizes obtained through online reading and such. I am quite handy with welding and design but I am mixed up when it comes to the hydraulic pump. I contacted a local machinist/engineer who said he can fabricate a splined bush to match the crankshaft PTO - he is visiting the tractor tomorrow for measurements/pitch design. (hope it will be ok)
I have read that the B219 came with a 5gpm hydraulic pump. some people say they installed 4gpm pumps.
My question is What is the difference between group 1 and group 2 pumps?
The pumps i am following on online shops give a reading of cc/rev.
8cc/rev x 2800rpm = 22,000 = 24lpm = 5.8gpm
9cc/rev x 2800rpm = 25000 = 25lpm = 6.6gpm
Do these calculations make sense?
(Pressure is not important as the spool valve on the b219 is set to 800PSI or 55Bar)
Thanks
Joseph
I am in the process of building a loader for my B7001. I am following some measurements i obtained from "Lil Foot". As far as cylinders go i have ordered a set with sizes obtained through online reading and such. I am quite handy with welding and design but I am mixed up when it comes to the hydraulic pump. I contacted a local machinist/engineer who said he can fabricate a splined bush to match the crankshaft PTO - he is visiting the tractor tomorrow for measurements/pitch design. (hope it will be ok)
I have read that the B219 came with a 5gpm hydraulic pump. some people say they installed 4gpm pumps.
My question is What is the difference between group 1 and group 2 pumps?
The pumps i am following on online shops give a reading of cc/rev.
8cc/rev x 2800rpm = 22,000 = 24lpm = 5.8gpm
9cc/rev x 2800rpm = 25000 = 25lpm = 6.6gpm
Do these calculations make sense?
(Pressure is not important as the spool valve on the b219 is set to 800PSI or 55Bar)
Thanks
Joseph