US Digital

E3 Assembly Instructions

For Shafts Greater Than 0.394" (10mm):

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    1. Base Mounting

    Secure the base to the mounting surface using two or three screws (sold separately). If a centering tool is used, slip it over the shaft and into the center hole of the base. Tighten the mounting screws and then remove the centering tool.

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    2. Spacer Installation

    Push the spacer tool onto the bottom section of the hub/disk assembly. Make sure the spacer tool snaps only on the lower part of the hub. Align hub set screws as shown in drawing.

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    3. Hub/Disk Assembly Installation

    Slip the hub over the shaft until it bottoms out against the spacer tool. Make sure the spacer tool clears the mounting screws on the base. Tighten both set screws with the hex wrench provided while pressing down on the hub. Remove the spacer tool.

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    4. Encoder Module Installation

    Orientate the module with the connector pins toward the top. Slide the module from front to back, being careful not to damage the disk. Stop when the two alignment pins on the base fit into the holes of the module. Secure with two 4-40 1/2" pan head screws (supplied).

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    5. Cover Installation

    Place the cover over the assembly and secure with the two 4-40 5/8" flat head screws (supplied).

For Shafts Less Than or Equal To 0.394" (10mm):

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    1. Base Mounting

    Secure the base to the mounting surface using two or three screws (sold separately). If a centering tool is used, slip it over the shaft and into the center hole of the base. Tighten the mounting screws and then remove the centering tool.

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    2. Spacer Installation

    Place the spacer tool around the shaft, flat on the base.

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    3. Hub/Disk Assembly Installation

    Slip the hub over the shaft until it bottoms out against the spacer tool. Tighten the set screw with the hex wrench provided while pressing down on the hub. Remove the spacer tool.

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    4. Encoder Module Installation

    Orientate the module with the connector pins toward the top. Slide the module from front to back, being careful not to damage the disk. Stop when the two alignment pins on the base fit into the holes of the module. Secure with two 4-40 1/2" pan head screws (supplied).

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    5. Cover Installation

    Place the cover over the assembly and secure with the two 4-40 5/8" flat head screws provided.

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