Need assistance reversing hand drill

Discussion in 'The Projects Forum' started by coolmack, Jun 12, 2016.

  1. coolmack

    Thread Starter New Member

    Jun 10, 2016
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    I am trying to reverse a hand drill with a DPDT switch, need a little help on how to wire it.
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
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  3. MaxHeadRoom

    Expert

    Jul 18, 2013
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    Presumably it is a mains powered drill and not battery portable?
    Max.
     
  4. coolmack

    Thread Starter New Member

    Jun 10, 2016
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    Yes this is an electric older Bosch 1/2" hammer drill model 1198VSR. The fwd/rev switch was bad, but could not find the original replacement so I thought I would try to a DTDP switch.
     
  5. Dr.killjoy

    Well-Known Member

    Apr 28, 2013
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    Personally I would have my hand go the other way on a hand drill..
     
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  6. ian field

    Distinguished Member

    Oct 27, 2012
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    With most regular corded electric drills - reversing it will unscrew the chuck.
     
  7. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    Can you post a picture of the switch? I had a similar tool (not Bosch) in which the switch "went bad" but there were an extra set of contacts I could use.

    As for the comments about the chuck coming off, many drills (also lathes, mills and other quality tools) are made to be reversible. The chuck doesn't unscrew. Either there is a locking screw on the inside of the chuck, the chuck is a taper fit to the spindle (J33 is popular for drills), or there is some other locking mechanism.

    Finally, can't you get the part from Bosch? That is really a quality tool.

    John
     
  8. ian field

    Distinguished Member

    Oct 27, 2012
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    I've seen a few expensive Bosch tools that weren't ant better than cheap & nasty Black & Decker.

    "Reassuringly expensive" doesn't always work like that......................
     
  9. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    @ian field
    More to your unsubstantiated and silly point, please give the model number for a Bosch reversible drill (hammer or regular twist type) with a RH threaded spindle.

    Best regard, John
     
  10. ian field

    Distinguished Member

    Oct 27, 2012
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    The TS didn't initially make it clear that the drill was originally reversible - in the vast majority of cases the chuck is simply screwed on.

    Cordless usually have a keyed or non circular shaft and the chuck is secured by a bolt through the middle.

    The common type for reversible mains drills is the SDS type chuck - or Morse taper for the real heavy duty stuff.
     
  11. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    The TS, post #4, made it clear it was a Bosch, reversible hammer drill. What is so hard to understand about that?

    John
     
  12. Dr.killjoy

    Well-Known Member

    Apr 28, 2013
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    Thats a little harsh but unit might not be designed to have reverse for a reason like the gearing or the hammer mechanism
     
  13. djsfantasi

    AAC Fanatic!

    Apr 11, 2010
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    Why would a REVERSIBLE drill NOT be designed to have REVERSE? I am confused?

    And why would it have a forward/reverse switch?
     
  14. coolmack

    Thread Starter New Member

    Jun 10, 2016
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    Well seems like everyone is cutting each other down while the question @ hand is still on the board.

    I have had this hammer drill for many years & the original fwd/rev switch went bad on me last year. I have tried to get the original switch from Bosch, ereplacement, and a few other online companies, but the switch they send me is not the original and will not work. So I have decided to replace the switch with a simple DPDT switch, just asking for a little help from someone that could help me wire this up without burning the motor up, too good of a hammer drill to throw away.
     
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  15. coolmack

    Thread Starter New Member

    Jun 10, 2016
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    I use it a lot & it being a hammer drill, it does need to reverse sometimes.
     
  16. coolmack

    Thread Starter New Member

    Jun 10, 2016
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    What silly point? Either you can help me or you can't!!
     
  17. coolmack

    Thread Starter New Member

    Jun 10, 2016
    11
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    Precisely!!
     
  18. coolmack

    Thread Starter New Member

    Jun 10, 2016
    11
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    Originally, it came with a fwd/rev switch, used it many times. SWITCH WENT BAD!!
     
  19. coolmack

    Thread Starter New Member

    Jun 10, 2016
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    The model # is 1198 VSR 1/2" Hammer Drill.
     
  20. coolmack

    Thread Starter New Member

    Jun 10, 2016
    11
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