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Metallic Series – Monitor: How to replace the sensor disk (S4 and S4 Bluetooth Monitors)

Replacement of the sensor disk of your Metallic Series rower’s S4 Monitor or S4 Bluetooth Monitor is a relatively simple task to perform.

As a guide, watch the video below. Note that this video is for an Original Series rower, but the same concepts apply for the Metallic Series from a procedural standpoint.

Illustration showing the handle assembly of a rowing machine with directional arrows indicating movement.

Step 1

Place handle into the most forward position near the large pulley in the Forward Riser.

Diagram showing the handle assembly replacement process for a rowing machine, illustrating the removal and assembly steps.

Step 2

Using the 5mm ratchet included with your rower, remove the handle rests and handle rest bolts. Set them aside.

Diagram of a rower, highlighting the handle assembly and pulley system.

Step 3

Rotate the footboard away from the tank assembly toward the rear of the rower.

Diagram of a WaterRower showing the handle assembly and its components.

Step 4

Remove the tank cover by sliding it simultaneously upward and toward the rear of the rower.

Illustration showing the components of a WaterRower with labels for JCB screw and Tie Rod.

Step 5

Remove the Tie Rods and JCBs connecting the Top Deck to the Tank assembly as shown.

Diagram showing the WaterRower's top view with components for sensor replacement indicated.

Step 6

Remove the top deck assembly as shown, being careful not to dislodge the guide pulleys. You may have to disconnect the sensor wire plug.

Diagram showing the removal and replacement process of the sensor disk from a WaterRower S4 Monitor with an upward arrow indicating direction.

Step 7

Remove the Sensor Disk as shown.

Illustration showing the installation process of a sensor disk onto a WaterRower's Monitor. The diagram includes an arrow indicating direction for placement.

Step 8

Replace the Sensor Disk as shown.

Illustration showing the top view of a WaterRower with the top deck assembly highlighted for sensor disk replacement.

Step 9

Replace the top deck as shown.

Diagram illustrating the installation of screws on the top deck of a WaterRower, showing the position of the screws and the water tank.

Step 10

Replace the JCBs and Tie Rods connecting the Top Deck to the Tank assembly as shown. Ensure that the Tie Rod cross dowel slots are aligned with the Tie Rod. You may utilize a screw driver to assist this.

Schematic illustration of a rower's tank assembly showing shims and assembly components.

Step 11

Reinstall the tank cover by sliding it simultaneously downward and toward the front of the rower. If your rower is equipped with black plastic shims to secure the front end of the top cover, ensure the cover is fully seated in them.

Illustration showing the forward riser handle being rotated on a rower's tank assembly.

Step 12

Rotate the footboard forward towards the tank and align the handle rest holes with the nuts embedded in the black angled brackets of the tank assembly.

Diagram illustrating the installation of a forward riser component on a rower's tank assembly, showing the orientation and placement of bolts and fittings.

Step 13

Using the 5mm ratchet, reinstall the handle rests and their bolts.

Do not overtighten these bolts as damage to the black angled brackets may occur.

Note: Do NOT use a drill or impact driver when when installing these bolts.

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