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Milwaukee 2780-20 Trigger Assembly Replacement

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Is your Angle Grinder’s trigger not working? If so, here is the guide to fix the problem with a simple change of a trigger assembly. The trigger assembly is the one of the main components for the grinder. Basically, a squeeze of the trigger turns on the electric motor inside thus making the tool run. Without a fully functioning trigger, the machine would not be able to turn on. All you need to make the repair is a Torx T20 and a Torx T10 screwdriver to remove two different types of screws involved with this replacement.

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  1. Milwaukee 2780-20 Trigger Assembly Replacement, Trigger Assembly: crwdns2935265:01crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Milwaukee 2780-20 Trigger Assembly Replacement, Trigger Assembly: crwdns2935265:01crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Milwaukee 2780-20 Trigger Assembly Replacement, Trigger Assembly: crwdns2935265:01crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Using a Torx T20 screwdriver, unscrew the four 16mm screws from the case.

    • Switch to the Torx T10 screwdriver, and remove the last 16mm screw from the hilt.

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  2. Milwaukee 2780-20 Trigger Assembly Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Milwaukee 2780-20 Trigger Assembly Replacement: crwdns2935265:02crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Milwaukee 2780-20 Trigger Assembly Replacement: crwdns2935265:02crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Using the Torx T20 screwdriver, unscrew the four 28mm screws located at the bottom (and top) of the gearcase assembly.

    • Remove the two 12mm screws with a Torx T20 screwdriver in order to get to the others.

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  4. Milwaukee 2780-20 Trigger Assembly Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Pull apart the housing handles.

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  5. Milwaukee 2780-20 Trigger Assembly Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Milwaukee 2780-20 Trigger Assembly Replacement: crwdns2935265:04crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Milwaukee 2780-20 Trigger Assembly Replacement: crwdns2935265:04crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Lift the trigger assembly off of its mount.

    • Dispose of the old trigger assembly and install the new one.

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

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Chris Hopper

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South Arkansas Community College, Team S1-G1, Mitchell Fall 2019 crwdns2935289:0South Arkansas Community College, Team S1-G1, Mitchell Fall 2019crwdne2935289:0

SACC-MITCHELL-F19S1G1

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