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Original Series – Monitor: How upgrade from the S3 monitor to the S4 / S4 Bluetooth monitor

If your older Original Series rower was originally equipped with the S3 Monitor, upgrading to the S4 or S4 Bluetooth monitor will greatly enhance your rowing experience.

Replacement of the monitor assembly is a straightforward task. Follow the steps below.

Illustration showing the rear view of an rowing machine monitor assembly, indicating an adjustable component with an arrow pointing outward.

Step 1

Remove the handle from the handle rests and place the handle in the full forward position as shown.

Diagram showing the assembly of an Original Series rowing machine, highlighting the position of the handle and components for maintenance.

Step 2

Stand the WaterRower upright and disconnect the bungee as shown.

Diagram of the WaterRower components, showing the JCB, barrel nut, and tie rod for assembly instructions.

Step 3

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

Diagram showing the WaterRower assembly with labeled components for monitor upgrade instructions.

Step 4

Remove the Top Deck assembly as shown, being careful not to dislodge the Guide Pulleys. You may have to disconnect the Tacho pulley and disconnect the Tacho motor plug.

Diagram illustrating the components of the S4 Monitor for WaterRower, including arrows and buttons.

Step 5

Remove the old monitor R-clip and the old monitor from the key bracket.

Diagram showing the assembly and components of a monitor bracket for a rowing machine.

Step 6

Remove the old monitor Tacho Pulley from the clutch.

Step 7

Remove the batteries and battery bracket.

Illustration showing the installation of the S4 / S4 Bluetooth monitor with an emphasis on the R-clip and attachment points.

Step 8

Position the S4 / S4 Bluetooth monitor assembly through the right key bracket as shown. Ensure that the spring and washer orientation is correct. Replace the R-clip retaining the monitor assembly as shown. Place the new S4 Top Deck, top side down, on the top of the tank on the side opposite the monitor. Connect the sensor connector.

Schematic diagram illustrating the assembly components of a rowing machine monitor installation.

Step 9

Place the S4 monitor sensor disk onto the clutch. The internal boss fits around the internal boss of the clutch.

Diagram showing the top view of a WaterRower with guidance on monitor assembly replacement.

Step 10

Place the new S4 Top Deck, top side down, on the top of the tank on the side opposite the monitor. Connect the sensor connector to the wire protruding from the spigot tube of the monitor housing.

Diagram showing the positioning of JCB, Tie Rod, and Cross Dowel on a WaterRower assembly.

Step 11

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.

Illustration of the WaterRower showing the handle, bungee connection, and various components labeled for assembly and maintenance.

Step 12

Stand the WaterRower upright and connect the Recoil Belt to the bungee as shown.
Note: If the Recoil Belt buckle and D-Ring have been removed it will be necessary to refit them before Step 9 may be completed. Refer to the Recoil Buckle Replacement instructions for details.

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