Jump to content

Nominations for Tractor of the Month
Garden Tractors and Parts on eBay



Photo
- - - - -

Century Fox Hydraulic Pump Repair


  • Please log in to reply
9 replies to this topic

#1 Alc ONLINE  

Alc

    Tractorholic

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1094
  • 5,449 Thanks
  • 6,616 posts
  • Location: Bangor Pa

Posted November 01, 2014 - 07:12 AM

On my Jim Dandy ( Economy )  it uses a Century Fox hydraulic pump with the control valve built in for implement lifting  . Last week when using it it stopped working , . The other night had some time to take a closer look , started by removing the belt and spinning the pulley ,not much resistance , then tried moving the shaft in & out yep it moved but shouldn't , there is one nut with a sealing washer that holds the fluid in , once that's off you can see the return spring for the control valve with the cover for the pump underneath .Removing the cover shows the 2 pump gears , one just rides on a little stub shaft the other is driven by a shaft going to the pulley held onto the shaft by a roll pin which was broken . If you look closely  you can see the roll pin goes between two teeth then into a blind hole that's  about 1/16" deep .  Thought I should check the pressure relief setting just in case that was the problem with the broken roll pin . "T" a gauge in one of the lines going to the cylinder , deadheaded it and got 400psi , I believe that it's supposed to be 700 psi . Removed the aluminum plug which holds the relief spring in , wasn't broken so just put it back in place . It's lifting the tiller just fine so not to mess with the pressure unless it get to be a problem .     I'm  glad it was just a roll pin and nothing   major .

Attached Thumbnails

  • DSCN1102.JPG
  • DSCN1104.JPG
  • DSCN1105.JPG
  • DSCN1106.JPG
  • DSCN1107.JPG
  • DSCN1108.JPG
  • DSCN1109.JPG
  • DSCN1110.JPG
  • DSCN1111.JPG

  • Bruce Dorsi, KennyP, tractorgarden and 4 others have said thanks

#2 HANKG ONLINE  

HANKG
  • Senior Member
  • Contributor
  • Member No: 29484
  • 4,877 Thanks
  • 2,791 posts
  • Location: Pt.Pleasant N.J.

Posted November 01, 2014 - 07:23 AM

I love it when you find the problem quickly and are able to fix it.


  • Alc said thank you

#3 KennyP ONLINE  

KennyP

    FORDoholic

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2253
  • 28,419 Thanks
  • 39,668 posts
  • Location: Collinsville, Oklahoma

Posted November 01, 2014 - 07:39 AM

Thanks for giving us a look inside one of these pumps. Glad you got it going again!


  • Alc said thank you

#4 Bolens 1000 ONLINE  

Bolens 1000

    DR. Bolens

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 7
  • 12,680 Thanks
  • 17,200 posts
  • Location: Western NY

Posted November 01, 2014 - 07:44 AM

I wonder what the relation is between this brand and the Hein Werner pumps as they look the same!

 

Same internals and everything!



#5 Alc ONLINE  

Alc

    Tractorholic

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1094
  • 5,449 Thanks
  • 6,616 posts
  • Location: Bangor Pa

Posted November 01, 2014 - 08:17 AM

 

I wonder what the relation is between this brand and the Hein Werner pumps as they look the same!

 

Same internals and everything!

It would be nice to know if or what parts interchanged , I wonder if any parts are still available  . A little web searching I did find the shaft seal is a CR4911  , people sometimes used  2 because it's thinner , but that's only what I read .



#6 Bolens 1000 ONLINE  

Bolens 1000

    DR. Bolens

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 7
  • 12,680 Thanks
  • 17,200 posts
  • Location: Western NY

Posted November 01, 2014 - 08:21 AM

It would be nice to know if or what parts interchanged , I wonder if any parts are still available  . A little web searching I did find the shaft seal is a CR4911  , people sometimes used  2 because it's thinner , but that's only what I read .

 

Is that the 1/2'' shaft?

If so these appear to be identical to the heinwerners internals and all.

I have the special seals instock if anyone needs them as well as many other parts I have been able to reproduce for these.

http://gardentractor...-now-available/


  • Alc said thank you

#7 Username OFFLINE  

Username

    Member

  • Senior Member
  • Member No: 2568
  • 2,065 Thanks
  • 1,425 posts
  • Location: Punxsutawney,Pa

Posted November 01, 2014 - 09:17 AM

That's the first time I have seen the inside of one of those pumps.You should be right on the money as PK rates them at 2 1/2 gpm at 400 psi.


  • Alc said thank you

#8 Alc ONLINE  

Alc

    Tractorholic

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1094
  • 5,449 Thanks
  • 6,616 posts
  • Location: Bangor Pa

Posted November 01, 2014 - 09:37 AM

The spec's for the  shaft seal is 1/2" . I wasn't sure where I got the 700psi from lol . Glad to know it's only supposed to be the 400psi that I got , thanks



#9 Alc ONLINE  

Alc

    Tractorholic

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1094
  • 5,449 Thanks
  • 6,616 posts
  • Location: Bangor Pa

Posted November 01, 2014 - 09:42 AM

 

I have the special seals instock if anyone needs them as well as many other parts I have been able to reproduce for these.

That's great to know , there was a member looking for parts for his PK pump



#10 glgrumpy ONLINE  

glgrumpy

    Getting Out!

  • Senior Member
  • -GTt Supporter-
  • Member No: 8360
  • 6,659 Thanks
  • 6,470 posts
  • Location: Huntington, IN 46750 North East in State

Posted November 01, 2014 - 12:14 PM

Think the big spring is also broken often and hard to find from what I've read on the PK forums.  Other brands did use this pump and can still get some parts.


  • Alc said thank you




Top