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Mk Diamond Wet Saws MK660 2010 Motor Replacement

Introduction

Follow this guide to remove and replace a faulty electric motor in a Mk Diamond MK660 Wet Saw.

The replacement part is 154292.

What you need

  1. Mk Diamond Wet Saws MK660 2010 Motor Replacement, Blade Cover: step 1, image 1 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement, Blade Cover: step 1, image 2 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement, Blade Cover: step 1, image 3 of 3

    • Before you begin, make sure to power off and unplug the device from the outlet.

    • If the clear water pump hose is connected, remove it now.

    • Loosen the plastic knob holding the saw's cutting head in place.

    • Lower the cutting head while keeping it steady.

    Edit

  2. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 2, image 1 of 2 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 2, image 2 of 2

    • Unscrew the knob.

    • Remove it from the cutting head.

    Edit

  3. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 3, image 1 of 2 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 3, image 2 of 2

    • Loosen the plastic knob holding the blade cover in place.

    Edit

  4. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 4, image 1 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 4, image 2 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 4, image 3 of 3

    • Loosen the wing nut on the blade cover pivot shaft.

    • Remove the wing nut and accompanying washer.

    Edit

  5. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 5, image 1 of 2 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 5, image 2 of 2

    • Pivot the blade cover up and pull it off the shaft.

    Edit

  6. Mk Diamond Wet Saws MK660 2010 Motor Replacement, Blade: step 6, image 1 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement, Blade: step 6, image 2 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement, Blade: step 6, image 3 of 3

    • Insert the provided spanner wrench into one of the four tightening holes on the inner flange behind the blade.

    • Use the the provided nut wrench to loosen the hex nut while providing counterforce with the spanner wrench.

    Edit

  7. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 7, image 1 of 2 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 7, image 2 of 2

    • Remove the hex nut.

    • Remove the outer flange.

    Edit

  9. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 8, image 1 of 2 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 8, image 2 of 2

    • Remove the cutting blade.

    • The blade can be sharp, so handle with care.

    Edit

  10. Mk Diamond Wet Saws MK660 2010 Motor Replacement, Cutting Head: step 9, image 1 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement, Cutting Head: step 9, image 2 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement, Cutting Head: step 9, image 3 of 3

    • Pull the entire cutting head straight off the shaft holding it in place.

    Edit

  11. Mk Diamond Wet Saws MK660 2010 Motor Replacement, Bottom Cover: step 10, image 1 of 1

    • Remove the eight Phillips #2 screws on the underside of the cutting head.

    Edit

  12. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 11, image 1 of 2 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 11, image 2 of 2

    • Remove the bottom cover.

    Edit

  13. Mk Diamond Wet Saws MK660 2010 Motor Replacement, Motor: step 12, image 1 of 2 Mk Diamond Wet Saws MK660 2010 Motor Replacement, Motor: step 12, image 2 of 2

    • Remove the Phillips #2 screw holding the ground wires to the chassis.

    • Loosen the wires from each other.

    • The motor's ground wire is green with a yellow stripe.

    • Reassembly tip: there are three ground wires attached here that will need to be reinstalled upon reassembly.

    Edit

  14. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 13, image 1 of 2 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 13, image 2 of 2

    • Remove the black wire's plug from the 4-pin rectifier.

    • These plugs have two wires each, so removing one plug removes two wires.

    Edit

  15. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 14, image 1 of 2 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 14, image 2 of 2

    • Remove the red/orange wire combo plug from the 4-pin rectifier.

    • Use needle-nose pliers if you can't reach this plug with your fingers.

    Edit

  16. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 15, image 1 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 15, image 2 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 15, image 3 of 3

    • Be very careful with this connection, as even minimal bending can break the metal conductor in half.

    • Use a pick to slightly pry up on the crimped metal arms holding the red and orange wires together.

    • Repeat for both sides to loosen the connector.

    Edit

  17. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 16, image 1 of 2 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 16, image 2 of 2

    • Be very careful with this connection, as even minimal bending can break the metal conductor in half.

    • Remove the red wire from the orange wire.

    Edit

  18. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 17, image 1 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 17, image 2 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 17, image 3 of 3

    • Use two flathead screwdrivers to carefully pry the inner flange off the motor shaft.

    • You may need to use the two screwdrivers to "walk" the flange off—it's press-fit onto the shaft. Try prying on various positions of the flange and rotating it as you work.

    • Remove the inner flange.

    Edit

  19. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 18, image 1 of 1

    • Remove the four Phillips #2 screws holding the motor in place.

    Edit

  20. Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 19, image 1 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 19, image 2 of 3 Mk Diamond Wet Saws MK660 2010 Motor Replacement: step 19, image 3 of 3

    • Grab the motor with both hands and tilt it slightly upward.

    • While keeping the motor tilted up, pull back and up to clear the electrical components behind the motor.

    • Remove the motor.

    • You may need to bend the thermal overload switch slightly in order to lift the motor out.

    Edit
Conclusion

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

3 other people completed this guide.

Author

Carsten Frauenheim

Member since: 03/10/20

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