by Doug Hanson » Fri Sep 03, 2010 6:54 pm
I think someone has substituded PVB 15 rotating group for your TA15. They are almost the same. they are the same except for the pins. TA15 should have 248811 pins, the PVB15 Rotating group part# 938273 uses 248812 pins.
Sorry I don't have the lengths, but I would assume the longer pins go into the TA to provide more resistance against the higher barrel lift off force used in a closed loop pump.
Doug Hanson
Predsident
Hanson Hydraulics Ltd.