This manual provided the necessary information to properly use the C-3 deck. The manual was an excellent reproduction and very clear.
Text excerpt from page 18 (click to view)
Water inlet filter
If you notice that the machine is taking longer to fill, check that the filter in the water inlet hose is not blocked. Turn off the water tap. Unscrew the hose from the tap and remove the filter. Clean it with a stiff brush. Refit the filter and screw the hose back onto the tap.
The drain filter collects threads and small objects inadvertently left in the laundry. Check regularly that the filter is clean. Open the filter door. Place a container under the filter and unscrew it. Pull out the filter. Clean the filter under a running tap, then refit it, screwing it fully in.