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Introduction

If during a work session you accidentally drop the device and fracture the power trigger, you will need to replace it. The inner mechanism can also break resulting in a broken power trigger. This guide will show you how to disassemble the handle and replace the switch.

  1. Using a Torx T20 screwdriver, unscrew  the five M5 x 16 mm screws. Using the T20 screwdriver, remove the M5 x 28 mm screw. Using the T20 screwdriver, remove the M5 x 28 mm screw.
    • Using a Torx T20 screwdriver, unscrew the five M5 x 16 mm screws.

    • Using the T20 screwdriver, remove the M5 x 28 mm screw.

  2. Using a Torx T10 screwdriver, remove the M3 x 10mm  screw.
    • Using a Torx T10 screwdriver, remove the M3 x 10mm screw.

  3. Gently pull off the right side handle. Gently pull off the right side handle.
    • Gently pull off the right side handle.

  4. Using a hex head screwdriver, remove the two 8-16 x 1/2in screws. Using a hex head screwdriver, remove the two 8-16 x 1/2in screws. Using a hex head screwdriver, remove the two 8-16 x 1/2in screws.
    • Using a hex head screwdriver, remove the two 8-16 x 1/2in screws.

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  6. Gently pull away the bend relief.
    • Gently pull away the bend relief.

  7. Remove the one M4 x 14 mm screw using a Phillips screwdriver. Remove the one M4 x 14 mm screw using a Phillips screwdriver.
    • Remove the one M4 x 14 mm screw using a Phillips screwdriver.

  8. Gently lift away the switch and wires.
    • Gently lift away the switch and wires.

  9. Press down the handle lock button. Force-ably twist and pull away the left side handle assembly.
    • Press down the handle lock button.

    • Force-ably twist and pull away the left side handle assembly.

  10. Using a bit driver, carefully remove the 4 M3.5 X 7mm holding the wires on. Remember the order and position of each wire. Remember the order and position of each wire.
    • Using a bit driver, carefully remove the 4 M3.5 X 7mm holding the wires on.

    • Remember the order and position of each wire.

  11. The Switch is now free of the Grinder. Dispose of the broken Switch and install your new Switch.
    • The Switch is now free of the Grinder. Dispose of the broken Switch and install your new Switch.

Conclusion

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

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