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Does a Volvo 2007 ec210 Excavator heaven in tank hydraulic filter? What’s the part number ?

Discussion in 'Shop Talk' started by bigrich954rr, Nov 16, 2020.

  1. bigrich954rr

    bigrich954rr Well-Known Member

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    I broke a fitting On a hose And pump most of the hyd tank out. so going to drain the hydraulic tank and refill it does it have an intank hydraulic filter.?

    If so what’s the part number ?

    anything special to do when I drain it?
     
  2. farmerlund

    farmerlund Senior Member

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    Pretty sure it does. Should put up the ser #. so the correct one can be identified. Its under the round cover with the ring of bolts on top of the tank.
     
  3. bigrich954rr

    bigrich954rr Well-Known Member

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    The SN is 110985
     
  4. funwithfuel

    funwithfuel Senior Member

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    You have an in tank return filter, you also have a last chance suction strainer. On top of your hydro tank there are 2 lids. One holds the suction strainer down, the other covers the in tank return. You also have a case drain filter which is a short large diameter spin on which should be mounted in the pump room. When you remove the lid off the tank, the part number should be there staring you in the face. Good luck.
     
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  5. bigrich954rr

    bigrich954rr Well-Known Member

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    whats the case drain filter for . i have a replacement i planned to replace
     
  6. Nige

    Nige Senior Member

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    The "case" in this instance is the case of the main implement pump, or pumps in the case of more than one. These piston pumps leak internally by default and the "case drain" takes the internal leakage oil back to the tank. As these pumps also continually generate small amounts of wear material a filter is installed on the case drain line to catch any wear or failure particles before they can contaminate the whole hydraulic system.
     
  7. funwithfuel

    funwithfuel Senior Member

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    Yes, pumps and motors on Volvos use a tiny amount of oil for cooling and lubrication. This is case drain. It is a good snapshot of the health of your machine. When you replace it, keep the old one upright until you can cut it open with a filter cutter. If you see nothing but clean oil in the bottom, you're good to go. If you see sparkles, it's time to look for a root cause. Good luck. Fingers crossed for clean oil only.
     
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  8. bigrich954rr

    bigrich954rr Well-Known Member

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    Copy will keep it upright and check it.
    Just drained the tank . Going to let it drip over night then pop the top and replace in tank filter .

    When I refill the tank with clean fluid is it worth while to try to get the old fluid out of the rams and stuff before it mixes with the new fluid is there any good way to do it ?
     
  9. funwithfuel

    funwithfuel Senior Member

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    I wouldn't do that unless you've had a catastrophic failure. That's a lot of work and if not done properly could result in more harm than good. If you have the tank empty, be sure to remove and inspect your sump strainer. Make sure she's clean and has no damage. Also check the ledge that the return filter sits on. Make sure its clean.
     
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  10. funwithfuel

    funwithfuel Senior Member

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    Almost forgot the most important part. Since you let the system drain overnight, you'll want to be sure you flood the pumps with oil prior to start-up. Just follow the hose from case drain filter back to the pump . Loosen at the pump end. Fill tank till oil dribbles from fittings. Do NOT come off idle for at least a minute. Wait for her to stop howling and wailing from the air. Then you can start exercising one function at a time. Start at the furthest and work your way back. Work bucket cylinder, slow and easy being sure not to reach end of travel. Do this 5-6x, then move to your arm. Check the oil level and keep going. Then when all that's done you can swing and walk slowly. Recheck oil level. The big thing is, until all the foam and air have worked their way out, don't hit the relief. You can have issues. The arm cylinder is the worst since it is the highest. Good luck.
     
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  11. bigrich954rr

    bigrich954rr Well-Known Member

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    Ok thank you for all the help will do. Thinking about pulling off some of the leaking hyd lines before I refill it to.
     
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  12. Nige

    Nige Senior Member

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    Makes sense to fix any leaks that are fixable before refilling the tank.
    Remember though that the more hoses you remove to fix leaks the faster the oil level in the tank will drop when you start to exercise the functions after startup. I'd seriously consider ignoring the sight glass and filling the tank right to the neck as a starting point, it gives you a bit more leeway as the level starts to fall. It would be a good idea to have a 2nd person who could watch the tank level during the process.
     
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  13. funwithfuel

    funwithfuel Senior Member

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    I wouldn't fill it up that much. Not unless your boom cylinders were fully extended and you were replacing one of those hoses. That's a lot of oil. Be careful of which lines you are servicing. The cylinders could have trapped energy or be have gravity waiting to get ya. Look closely and take your time.
     
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  14. Nige

    Nige Senior Member

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    Remember to stay away from the line of fire as you loosen off hoses.
     
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