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  1. R

    Case 1845c m91 tandem pump

    The pin is pushed so far into the aluminum housing I can't even remove it. I ordered a new pump and pin and will post the results once reinstalled
  2. R

    Case 1845c m91 tandem pump

    Came to find out on tear down that the previous installer of the charge pump installed it with the top pin an inch to the right of the hole. Hopefully this was causing my issues
  3. R

    Case 1845c charge pump installation on danfoss91

    I actually came to find out that the previous installer had the charge pump pin installed about an inch to the right of the top hole. Hopefully this is what was causin the loss of drive power once the machine was warmed up and causing the charge pressure to drop from 300 to 150 psi when the...
  4. R

    Case 1845c charge pump installation on danfoss91

    How do I know which way the charge pump is supposed to be installed on an m91 pump. It can go in either way and I'm not sure if the previous guy installed correctly. I guess it depends on trotat ion but I need to know which way for each rotation cw and ccw.
  5. R

    Case 1845c m91 tandem pump

    At idle charge pressure is 50psi at full rpm it is 300 psi. When you stroke the levers forward or backward at full rpm it drops from 300 to 200. It also does this with the ports capped off that go to the drive motors so that I could eliminate there being leakage in those. Any thoughts? Also...
  6. R

    Case 1845C weak right side

    Where is this orifice u speak of? Is it on the drive motor or tandem pump?
  7. R

    96 Case 1845c right side drive weak when hot

    I have a 1996 case 1845c that I recently rebuilt the m-91 tandem pump with new cylinder block,rotating groups,and plates. The system pressures are 4500 psi for right and left side on all 4 tst ports when the levers are stroked and the charge pressure is 375 psi. After running the machine and...
  8. R

    1996 case 1845c hto additive

    What would happen if you didn't put the hto additive in the 10w30 that's I'm the hydraulic system. Would the oil foam up once it gets hot and cause the hydraulics to not function properly or does it just preserve the run life
  9. R

    Hto additive

    It's is a 1996 case 1845c
  10. R

    Hto additive

    What would happen if you didn't put the hto additive in the 10w30 that's I'm the hydraulic system. Would the oil foam up and cause the hydraulics to not function properly?
  11. R

    Sauer danfoss 40 series m46 tandem drive pump

    This part your talking about is located on the tandem drive pump?
  12. R

    1996 case 1845c drive problem

    It was one of the pumps on the hydrostacic tandem drive. There are 4 5/8 serice ports on the top of the charge pump and they should be about 4500 psi and one side was about 400 psi so I capped off the hydraulic lines on that side and to eliminate the drive motors then swapped relief valves to...
  13. R

    Sauer danfoss 40 series m46 tandem drive pump

    Danfoss m46 tandem hydrostatic drive pump off a 96 case 1845c. New oring kit swash plate rotating groups. The charge pressure is fine but I had a guy tell me there are othe parts in there that get wore out that would let fluid bypass. The problem I'm running into is when you engage into a load...
  14. R

    Sauer danfoss 40 series m46 tandem drive pump

    Danfoss m46 tandem hydrostatic drive pump off a 96 case 1845c. New oring kit swash plate rotating groups. The charge pressure is fine but I had a guy tell me there are othe parts in there that get wore out that would let fluid bypass. The problem I'm running into is when you engage into a load...
  15. R

    Case 1845c hydraulic fluid

    What would happen if I didn't use the hto additive to the 10w30 oil in the hydraulics? Does,it effect pressures?
  16. R

    Case 1845c drive issues

    No they were never replaced when the pump was rebuilt and machine has 3400 hours. It's not odd for all 4 to go bad? They are 300 bar 4350psi. Is there a way to test these?
  17. R

    Case 1845c drive issues

    I meant I checked the bypass valves and put them back in tight and still same issue. Sorry
  18. R

    Case 1845c drive issues

    It has the pins that lock into the drive sprockets vIA cable connected to seat bar. I actually did check those and took them out and put them back in tight and still same issue
  19. R

    Case 1845c drive issues

    There's 2? And how do you open and close them? If they are tight does that mean they are closed
  20. R

    Case 1845c drive issues

    1996 case 1845c with m46 tandem drive pump. Pump is completely rebuilt and new drive motors as well. When you get into a load in forward and reverse the machine just sits and tires do not spin on either side and engine does not die down it just runs wide open as if . Is it possible that all 4...
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