Replacement of the Forward Riser of your Original Series rower’s tank assembly is fairly straightforward and the process is identical for any Original Series rower.
As a guide, watch the video below:
Step 1
Detach the bungee from the recoil belt.
Step 2
Remove the handle assembly

Step 3
Remove Tie Rod bolts as shown.

Step 4
Remove the fasteners connecting the forward riser bottom bracket to the side rails as shown.

Step 5
Remove the forward riser assembly from the tank assembly as shown.

Step 6
Replace the forward riser assembly against the tank assembly and between the rails as shown.

Step 7
Replace the Tie Rod bolts as shown. Ensure that the cross dowels into which the Tie Rod bolts screw are aligned with the Tie Rods. To do this use a screwdriver to ensure that the cross dowel slot is in line with the cross dowel as shown.

Step 8
Fasten the forward riser bottom bracket to the side rails as shown
Step 9
Replace the handle assembly (see handle replacement instructions).
Step 10
Replace the Recoil Belt (see recoil belt replacement instructions).