Auxiliary hydraulic pump on a Jet Star

I just bought a Jet Star. It has the optional 2nd hydraulic pump. The previous owner never used the pump and knew nothing about it. What pressure and volume is it capable of?[/img:bf4c91556d]
 
Jetstar 3 had 3 pumps. Industrial had one on motor side cover for PS. Two rear available. Vickers or Webster. Either could be
mounted on back or on side where belt pulley hole is. Webster is 15 gpm and Vickers is like 23.
 
You mentioned a belt-pully hole. Like the ones used to drive threshers? I could use that! Do you have any links to details:
rpm
drive connection
examples?

Is the Webster a 2500 psi pump?
 
Yes, where that plate is on the top left upper rear of the diff housing. They are pretty scarce and bring a good price, The drive has a hub and the pulley bolts on. sometimes you can find the drive but not the pulley.
MMDEL
 
It is more than a shaft, It is a housing with bearings that bolts to the side of the diff. With a bevel gear to the inside.
MMDEL
 

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