Thread
:
Hydraulics problem
View Single Post
#
11
Posted to rec.crafts.metalworking
Ignoramus32163
external usenet poster
Posts: 8
Hydraulics problem
Lower power output of pumps does happen due to wear. Pay to have it
rebuilt.
i
On 2014-06-12,
wrote:
I have a mid 70s Case CK780 backhoe. The thing had seen lots of abuse
before I bought it and I have used it pretty hard since. The power of
the hydraulics has gotten weaker over the years. I used to be able to
kill the engine by trying to push or pull too hard. Now this doesn't
happen. So I'm thinking that the pump has a lot of wear. Over 30 years
ago I used to repair gear pumps in a lumbermill I worked in by
grinding the end plates of the pumps to remove scoring. But I don't
know how much more pressure the pumps put out after this repair, it
was just what I was told to do and I did it a lot. Considering the age
of the tractor I'm wondering if I might just be better off buying a
new pump and also if there is somwhere else I should look for the
lowered power of the hydraulics. The power loss has been gradual over
the years so I'm thinking it's probably the pump.
Thanks,
Eric
Reply With Quote
Ignoramus32163
View Public Profile
Find all posts by Ignoramus32163