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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
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Bob McCarty
Team Cub
Team Cub
Posts: 11861
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 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
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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
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Scrivet
10+ Years
10+ Years
Posts: 2929
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)?
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Bob McCarty
Team Cub
Team Cub
Posts: 11861
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
Top
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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