Mitutoyo Indicator Help?

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Mitutoyo Indicator Help?

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Viewing 17 posts - 1 through 17 (of 17 total)
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  • #223110
    Steve Cole 1
    Participant
      @stevecole1

      Ok so… I have a problem with my indicator, i purchased it secondhand and all it needed was a bit of WD40 and a clean up. Perfect… so i did that and its been working fine or so i thought… Its accurate don't get me wrong, i checked it against a set of slip gauges however if i tilt it left to right it moves around 0.05mm

      Has anyone else had this problem? I took the side case off to see if anything was loose or broken and all looked fine. Its a Mitutoyo 513-204 lever indicator. As i said accuracy doesn't appear to be effected and when its on a stand and i press the stylus up and down the needle returns to the same spot however if i tilt it left to right the needle sags/ moves? I thought about sending it to Mitutoyo but i only paid £10 for it and i would imagine the repair bill would be 3 times that so I'm hoping i can fix it at home?

      Hope someone can shed some light

      Regards

      Steve

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      #17981
      Steve Cole 1
      Participant
        @stevecole1

        Lever sagging 0.05 left to right

        #223113
        Michael Gilligan
        Participant
          @michaelgilligan61133

          Steve,

          Mitutoyo's spares list might be useful:

          **LINK**

          MichaelG.

          #223122
          roy entwistle
          Participant
            @royentwistle24699

            I would strongly advise that WD40 is not used on any indicator especially on brass As it should not be used on clocks As regards the movement when it is tilted can you adjust the bearings on the lever ?

            Roy

            #223131
            Tomk
            Participant
              @tomk39956

              Steve

              I have repaired a few mercer clocks and yours looks very simmilar. Your problem could be 1 of 3 faults

              1) stylis is loose (do not tighten with plyers unless you can grip pivot with modified plyers as the bearings will be damaged)

              2) The ball ball bearings that support the stylis pivit requiire adjustment.

              3) The ball bearings are damaged

              Tom

              #223133
              Ajohnw
              Participant
                @ajohnw51620

                Sounds like the sleeve the plunger runs in is worn. Plunger too. It's a common problem on used DTI's and is probably why they are being sold. They are sometimes used in jig's to check the dimensions of parts and have a hard life.

                There was some one in the classified selling DTI's cheaply might be worth seeing if they still have any. A worn plunger is no good at all when they are used to centre rotating parts.

                John

                #223146
                Michael Gilligan
                Participant
                  @michaelgilligan61133
                  Posted by Ajohnw on 30/01/2016 00:08:53:

                  Sounds like the sleeve the plunger runs in is worn. Plunger too. It's a common problem …

                  .

                  John,

                  I have to ask:

                  • What sleeve ?
                  • What plunger ?

                  The problem Steve presented is on a 513 series Lever indicator.

                  MichaelG.

                  #223152
                  Ajohnw
                  Participant
                    @ajohnw51620
                    Posted by Michael Gilligan on 30/01/2016 08:23:27:

                    Posted by Ajohnw on 30/01/2016 00:08:53:

                    Sounds like the sleeve the plunger runs in is worn. Plunger too. It's a common problem …

                    .

                    John,

                    I have to ask:

                    • What sleeve ?
                    • What plunger ?

                    The problem Steve presented is on a 513 series Lever indicator.

                    MichaelG.

                    cheeky

                    John

                    #223156
                    Clive Hartland
                    Participant
                      @clivehartland94829

                      I dont think gauges like this take kindly to WD40.

                      Any lube on an indicator should be absolutely minimum, one to stop dust etc sticking and to stop oil drag.The ssmallest drop of watch oil will suffice.

                      Side play is mostly caused by the ball bearing out of adjustment in the pivot. They do suffer badly from side strain. Also check that the touch pin is tight in its holder.

                      Clive

                      Edited By Clive Hartland on 30/01/2016 09:13:48

                      #223158
                      mechman48
                      Participant
                        @mechman48

                        IIRC there was a member who seemed to specialise in DTI repairs who often posted on this forum, with pics, … possibly on another forum, if I can find it again I'll place link to his posts.

                        George.

                        #223165
                        Jerry Wray
                        Participant
                          @jerrywray14030

                          I should endorse Clive's comment about WD40. This and other similar products are not simple lubricants. They leave a deposit on the surface, which is part of how they function. Although this is only a thin film it is such that anything which is built to close tolerances will be sufficiently affected as to cause problems, in some cases leading to jamming.

                          Jeryy

                          #223171
                          Michael Gilligan
                          Participant
                            @michaelgilligan61133
                            Posted by Michael Gilligan on 29/01/2016 21:44:38:

                            Steve,

                            Mitutoyo's spares list might be useful:

                            **LINK**

                            MichaelG.

                            .

                            Here is an earlier version, which mentions the 513-204 specifically.

                            MichaelG.

                            #223175
                            mechman48
                            Participant
                              @mechman48

                              Here is the link to the guy that does DTI repairs, he's on another forum…

                              **LINK**

                              Also a post on how he fixed a DTI…

                              http://madmodder.net/index.php/topic,11094.0.html

                              Drop him a pm, I'm sure he'll help you out

                              George

                              Edited By mechman48 on 30/01/2016 10:59:58

                              #223260
                              Steve Cole 1
                              Participant
                                @stevecole1

                                Thank you all for the help, i have now managed to sort it. yes Believe it or not, if anyone has this problem it was the springs which help return the stylus, they didn't appear bent however i was looking at it and decided if they were to week then it would cause the hand to flop as nothing would take up the play within the gears. As Jerry mentioned the tolerance is very fine so if theres not enough tension then the gear would drop. They must have been pressed on hard over time and as a result bent them. A quick tweak on each spring and a re adjust on the tension screw bearing screw and i have virtually no needle/ hand drop (it just about drops between 0-0.01) probably half the thickness of the needle so virtually nothing at all. I don't want to keep going as i don't want to bend it to hard incase i bend it. I think for a £10 indicator thats spot on, pretty sure a brand new one would have some movement?

                                I have managed to set it so it does one full revolution + 0.13 up and down and returns to bang on 0 every time! Whilst i was in there i also decided to clean up that WD blush and apply some zx1 micro lube and its silky smooth!

                                #223265
                                Michael Gilligan
                                Participant
                                  @michaelgilligan61133

                                  Well done, Steve

                                  MichaelG.

                                  #223311
                                  Neil Lickfold
                                  Participant
                                    @neillickfold44316

                                    I use baby oil to lube the insides of my DTI's . Seems to work a treat.

                                    Neil

                                    #223313
                                    roy entwistle
                                    Participant
                                      @royentwistle24699

                                      Does anybody know how to get rid of the gunge left by WD40 on brass I have tried all solvents even as far as boiling the clock plates in washing soda

                                      Roy

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