Hydraulic pumps

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Buddy&jerry
Posts: 30
Joined: Thu Dec 05, 2019 7:40 pm
Zip Code: 32421

Hydraulic pumps

Postby Buddy&jerry » Sun Dec 22, 2019 3:10 pm

Just curious about the different series of pumps
Any one better than another

Bob McCarty
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Tractors Owned: Cubs, MH Pony, Shaw, Allis G, 1934 Silver King, JD LA and LI, Gibson D, David Bradley Tri-Trac
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Location: CO, Longmont

Re: Hydraulic pumps

Postby Bob McCarty » Sun Dec 22, 2019 3:20 pm

As far as I know, there was only one pump for the Cub.
"We don't need to think more,
we need to think differently."
-Albert Einstein

Buddy&jerry
Posts: 30
Joined: Thu Dec 05, 2019 7:40 pm
Zip Code: 32421

Re: Hydraulic pumps

Postby Buddy&jerry » Sun Dec 22, 2019 3:45 pm

But there are different series

Scrivet
10+ Years
10+ Years
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Joined: Sun Apr 19, 2009 9:51 pm
Zip Code: 63664
Location: MO, Potosi

Re: Hydraulic pumps

Postby Scrivet » Sun Dec 22, 2019 4:54 pm

Don't understand your use of the word "series". Are you referring to the revision number (the number or numbers after the "R" in the part number)?

Bob McCarty
Team Cub
Team Cub
Posts: 11151
Joined: Tue May 25, 2004 8:02 pm
Zip Code: 80501
Tractors Owned: Cubs, MH Pony, Shaw, Allis G, 1934 Silver King, JD LA and LI, Gibson D, David Bradley Tri-Trac
Circle of Safety: Y
Location: CO, Longmont

Re: Hydraulic pumps

Postby Bob McCarty » Sun Dec 22, 2019 5:01 pm

The casting was changed a little, a lip seal was changed to an o-ring on the shaft, several internal components (o-rings, fiber washers) were changed, but overall the pump was the same as far as function and output.
"We don't need to think more,
we need to think differently."
-Albert Einstein

Buddy&jerry
Posts: 30
Joined: Thu Dec 05, 2019 7:40 pm
Zip Code: 32421

Re: Hydraulic pumps

Postby Buddy&jerry » Sun Dec 22, 2019 5:10 pm

This iswhat I was curious about. My 1973 has a Pesco
# ending with 06 it uses a pin seal but pump #s 03,
04,05 don’t. Why did they back to using it?


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