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Cat E70B hydraulic tank drain

Cookie Duster ยท 2017-05-05 13:18

The manual says to remove the 1-1/4" plug and insert a pipe nipple to "open the drain valve". Is there a valve inside the tank that will open when a pipe is threaded in? Or will I get an oil bath?

Replies5
  1. #1check2017-05-05 15:09

    I have been wondering where the hydraulic drain is on my E70B too. Maybe you have to remove that panel underneath. I like to crack the bottom plug on a machine that's been sitting a while to see if there's any water on the bottom.

  2. #2Cookie Duster2017-05-05 15:40

    I have removed the panel and the plug is easily accessible - just a little afraid to remove it.

  3. #3DEMLONE702017-05-06 03:20

    U need to be fast haha

  4. #4John Shipp2017-05-06 08:41

    Especially if you forget to vent the tank first...

  5. #5Mobiltech2017-05-06 08:51

    Yes Cat does have a spring check valve on a lot of their drains. When you take the plug out you will get a few drops of oil coming out. When you screw the 1 inch pipe in it will unseat the valve and let the oil flow.