JM 604 Hydraulic Pump Retrofit |

This topic has 13 replies, 5 voices, and was last updated 13 years, 8 months ago by Bluenoser.

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- March 13, 2011 at 7:31 pm #30211
  Bluenoser
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  I am starting the retrofit of the OEM CBN314 pump to a CBN320 pump to run the tractor hydraulics. This should make the loader work a little faster. Here is a pic with the OEM on the right and the new pump on the right.
- March 13, 2011 at 8:33 pm #31640
  Bob Rooks
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  Bluenoser wrote:
  
  “Here is a pic with the OEM on the right and the new pump on the right”
  
  If I didn't know better, I'd say it's a conspiracy.
  
  Why do I keep getting confused??
  
  Account deleted.
- March 13, 2011 at 8:37 pm #31641
  Tinbender
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  Its a Right wing conspiracy!
- March 14, 2011 at 4:54 am #31650
  Bluenoser
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  Oops!
  
  Here is some info on the pumps.
  
  http://www.hzjdyy.com/Pro_Deta……asp?ID=17
- March 14, 2011 at 11:37 am #31654
  Affordable
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  You will see a big differnce, it's really not a retrofit just a replacement pump.Since it's a little longer you have to adjust the inlet pipe. The GPM will change from 7.40 to 10.57
  
  Tommy
  
  Affordable Tractor Sales Co
  
  “Your Jinma Parts Superstore”
  
  http://www.affordabletractorsalesco.com
- March 14, 2011 at 3:14 pm #31657
  Bluenoser
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  The pump is a direct replacement, bolts right up. The suction line is hard piped and you have to bend it back about 1/4″ (+/-), the discharge line is hose to a quick connect, so that is not an issue. I have also added a relief valve, where the quick connect used to be and am changing the hydraulic circut. As I progress I will post pic's.
- March 14, 2011 at 4:12 pm #31658
  Affordable
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  Let us know once you get it going, I think you are going to be very Happy with it
  
  Tommy
  
  Affordable Tractor Sales
  
  ” Your Jinma Parts Superstore”
  
  http://www.affordabletractorsalesco.com
- March 14, 2011 at 5:57 pm #31664
  Bert
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  I've added the CBN-320 pump on my JM 454 and what a big difference it makes on the speed of our FEL.
- March 20, 2011 at 6:12 pm #31710
  Bluenoser
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  Getting closer to finishing the project.
  
  The CBN320 pump bolted right up, had to bend the OEM suction line back about 1/4″. Added a relief valve right off the pump (due to the quick connects for the loader). Ran the pump discharge to a 3 way valve – loader and tractor hydraulic circuts.
- March 20, 2011 at 6:14 pm #31711
  Bluenoser
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  Pump supply to 3 way valve, the LH position is for the loader, the RH position is for the tractor hydraulics.
- March 20, 2011 at 6:16 pm #31712
  Bluenoser
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  Added a pressure gauge to monitor system pressure.
- March 20, 2011 at 6:21 pm #31713
  Bluenoser
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  Loader Quick connects. The OEM setup, you had to use one of the two sets of remotes at the rear of the tractor.
- March 20, 2011 at 8:21 pm #31714
  Bob Rooks
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  Very nice work!
  
  The only thing I would have done differently is on the quick-connects; reverse one set so that there is a male and female opposite each other. That eliminates the possibility of getting them cross connected.
  
  Good job!
  
  Account deleted.
- March 21, 2011 at 5:22 am #31717
  Bluenoser
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  Thanks
  
  I will use one of your tricks and color code the valves to eliminate the possibility of a crossconnection. Worked great on the dozer!
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