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Skil 1743-AA Corded SDS+ Hammer Drill Disassembly

O que você precisa

  1. Skil 1743-AA Corded SDS+ Hammer Drill Disassembly, Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 1, imagem 1 %32
    • The Skil 1743-AA Cordles SDS+ Hammer Drill is an affordable tool for serious hole drilling. Note that this one had its labels removed and the cord cut off for educational purposes.

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    • Make sure the drill is not plugged in. In our case, this was easy.

    • With a Phillips size 2 screwdriver, unscrew the four 40mm screws from the front body.

    • The front comes right off. Unfortunately this part is very rigidly put together, in fact so rigidly we were not able to disassemble it any further.

  3. Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 3, imagem 1 %32
    • Flip over the rear body, and unscrew the 9 20mm screws.

  4. Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 4, imagem 1 %32 Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 4, imagem 2 %32
    • With a pry tool, separate the two halves. You might need to go all around before they come loose.

    • Take a moment to admire all that is inside.

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    • Unscrew the two 15mm screws that secure the cord.

    • The cord and its cradle look like one part, but actually they aren't.

  6. Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 6, imagem 1 %32 Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 6, imagem 2 %32
    • Before we go any further, release the rotor from the motor assembly. Beautiful thing to behold, no?

    • You might need to lift the bearing from its position behind the motor in order to take the rotor out.

  7. Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 7, imagem 1 %32 Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 7, imagem 2 %32
    • With pliers, cut the cable ties that secure the cable tree.

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    • The complete innards should come out easily.

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    • We are now going to take out the power cable. Its leads are attached to the trigger box.

    • With a size 3 slotted screwdriver, unscrew the two 10mm brass screws to release the power cord.

  10. Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 10, imagem 1 %32 Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 10, imagem 2 %32 Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 10, imagem 3 %32
    • Pull apart the trigger and polarity switch boxes.

    • With your size 3 slotted screwdriver, or the pry, pry off the lid of the polarity switch. Using this switch the current to the motor is reversed to it turns the other way.

    • Interesting spring mechanism!

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    • Flip over the polarity swith box. The brushes that transfer power to the motor are attached inside here.

    • The wires are not soldered which allows you to replace the brushes. Don't lose the springs that hold 'em in place though!

  12. Skil 1743-AA Corded SDS+ Hammer Drill Disassembly: passo 12, imagem 1 %32
    • You have completed the disassembly!

Conclusão

To reassemble your device, follow these instructions in reverse order.

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