EDCO Disk Grinder 50200-HD Sheave Replacement

Written By: Sam Omiotek
  • Comments: 1
EDCO Disk Grinder 50200-HD Sheave Replacement

Difficulty

Moderate

Steps

13

Time Required

30 minutes - 1 hour

Introduction

Follow this guide to replace the sheave on an EDCO Disk Grinder model 50200-HD.

This repair requires two people.

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    • Before you begin, ensure the device is powered down and cool to the touch.

    • Ensure the machine is unplugged.

    • Turn the power switch counterclockwise into the OFF position.

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    • Use a 9/16 inch socket to remove the two bolts securing the weighted hood.

    • During reassembly, ensure the bolts are reinstalled with the washers and lock washers in the correct order.

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    • Remove the weighted hood.

    • The weighted hood weighs 37 pounds. Wear gloves and handle with caution.

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    • Use a 9/16 inch socket to loosen the bolts securing the motor mount.

    • Do not completely remove the bolts.

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    • Slide the motor towards the front of the machine as far as it will go to loosen the belt tension.

    • Use a 9/16 inch socket to tighten the four bolts back down to lock the motor in a position where there's the least belt tension.

    • During reassembly, have one person slide the motor mount towards the rear of the machine to tension the belt while the other person tightens the bolts.

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    • Tilt the front of the machine up and rest the handlebars on the ground.

    • Have someone hold down the handlebars to prevent tipping while working on the belt.

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    • Pinch a flathead screwdriver between the belt and sheave.

    • Rotate the sheave and pivot the belt up and away from its groove.

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    • Continue to rotate the sheave with once hand while holding the flathead screwdriver with the other to fully dislodge the belt from the groove.

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    • Remove the belt from the motor pulley, then fully remove it from the machine.

    • Reassembly tip: loop the belt around the motor pulley before placing it on the sheave.

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    • Reassembly tip: place the belt over the rim and rotate the sheave to guide the belt into the groove.

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    • Tilt the machine back into working position.

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    • Use a 5/32 inch hex wrench to loosen the set screw securing the sheave to the head assembly shaft.

    • If the set screw is seized, use an impact driver with a 5/32 inch hex socket to loosen it.

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    • Lift the sheave straight up off of the head assembly shaft.

    I’m having a hard time taking mine off. It won’t slip out. The wheel on mine seems to be upside down compared to this one. Maybe mine is an older model? Idk how to remove it without damaging it. Please help

    Angel Ramirez -

Conclusion

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

Author

Sam Omiotek

Member since: 25/02/19

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