backhoe thumb

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    • #30901
      DavidPrivett
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        does anyone here have any experience making a thumb for a backhoe I would like a hydro.one but will be happy with a manual one. It will be for my jcb 214 hoe

      • #37019
        Bob Rooks
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          Do you have a power beyond port in your valve stack?

          There are many aftermarket kits on the web including eBay and Amazon.

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        • #37021
          DavidPrivett
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            It had been set up for a demo hammer so it has  some of what I need,on the gauge panel there is a electric switch to enable a foot pedal that works a  electric valve.There is a large hose with a quick connector on the top side of the boom.I am still in the thinking end of this.

          • #37025
            Bob Rooks
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              Demo hammers are usually pin mounted. To my knowledge there are no pin mounted thumb kits. There are kits that have large U-bolts that clamp to the stick but I don't know anything about them. You will also need a return line to your valve so you can operate a double acting cylinder, with a pressure relief valve on it.

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            • #37040
              Bob Rooks
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                This is the type valve you want if want to add a hydraulic thumb and you don't have a power beyond port. I used this type valve in my excavator dozer blade circuit. For instance, you could, say, install this valve in your right side stabilizer circuit. Then when you wanted to use the thumb just flip the toggle switch and use the right side stabilizer control valve to operate the thumb. Be sure to install a pressure relief valve in the return line set to about 1,750 psig to avoid damage to the thumb, and possibly shearing pins.

                 

                http://www.princessauto.com/pa…../8051799.p

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              • #37041
                Bob Rooks
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                  I predict you will be using a manual thumb soon. laugh

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                • #37042
                  DavidPrivett
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                    you are right .there is some on a auction I am looking at, Excalibur is the manf. 36 incher they have two so hopefully I can get one.

                  • #37044
                    Bob Rooks
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                      Great. Lets see some pics when you get it installed.

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                    • #37046
                      DavidPrivett
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                        well I got lucky I won the bid on that thumb I was looking at,no one else bid on it so it went for the starting bid,200 bucks now I have to run to Knoxville,tn. and get it .I will keep you all up to date.

                      • #37047
                        Bob Rooks
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                          $200 for a thumb? That's almost too good to be true. hailking

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                        • #37049
                          DavidPrivett
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                            yea there was two of them ,but being a online auction I did not place a bid on the other one,cause I could not watch it live could have made a few bucks, but oh well shouldda coulda woulda crystal ball not working.

                          • #37050
                            DavidPrivett
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                              well I picked up the thumb looks like the construction of it was pretty good .When I placed the thumb on the stick I saw it was not made for this stick(the sale  said it was generic) but all I need is a piece of steel 3/4 thick tapered from 4- 3/4 inches to 6 – 1/2 inches by 42 inches long to flatten out the bottom of the stick and add one grease fitting on the thumb,the deal was too good to be to easy.oh well open another beer!

                            • #37051
                              ronjin
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                                I don't understand what you mean by 'stick'.  Can you post any pictures?

                                ronjin

                              • #37052
                                Bob Rooks
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                                  “Stick” is slang for “dipper stick” or “jib”. It's the part that the bucket articulation is mounted to.

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                                • #37053
                                  Bob Rooks
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                                    David wrote:

                                    “all I need is a piece of steel 3/4 thick tapered from 4- 3/4 inches to 6 – 1/2 inches by 42 inches long”

                                     

                                    There's $75.00 right there. embarassed

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                                  • #37054
                                    DavidPrivett
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                                      yea actually 100.00 priced it today but I am still coming out cheap on this whole deal

                                    • #37112
                                      DavidPrivett
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                                        well got it all put together and man that is nice not having to try to curl logs against the boom to pick them up.took pictures of each step to post them ,but my camera that works with my old xp computer will not load the disc on this 8.1 computer,so until I figure it out you will have to take my word on it.sorry

                                      • #37115
                                        Bob Rooks
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                                          laugh hailking

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