Hydraulic pump leak....

[Mitch D]

Took our 7520 for a test drive after the clutch job, it was outside running about a half hour then drove it awhile. Turned into the driveway and oil started spraying out from up front so got it into the shop (while leaving a big trail) shut it off and looked for a blown hose or something but saw nothing. Started it again and nothing but a slight seeping from 2 of the plugs (hex heads holding the pistons in the pump) Guessing it may be time for a new pump but would something else on the tractor have caused it? Don't want to mess up another pump. Any ideas?
Thanks Mitch

 

[Tx Jim]

Leaking plugs only dictate new pump if pump housing bores are cracked. New o-rings with protective sheave might repair leak.

 

[tim s]

Most likely the shaft seal was where it was coming from, I have seen them act like that just before they fail completely.. the inner high pressure seal gets worn thin and sorts waves in the groove, I have re-sealed some that were worn so bad that I couldn't beleave the held at all. You should look into a "New" after market pump, rather than re-sealing your old one,, they are in the $8-900 range Deere pumps are around $2000..and probably from the same source..