Ryobi 3302H Operation Manual page 182

Chapter 2 Periodic Inspection
a. The pressure between the water form roller and water oscillating roller (B)
Checking procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - - . ,
<Adjustment procedures>
Maintenance Edition - 16
Apply ink on the roller thinly and run the press.
Feed the ink to the water rollers by shifting the water roller cleaning
lever.
Push the water form roller ON button to contact the water form
roller with the water oscillating roller.
After running the press for a few minutes, stop the press. After a
few seconds, push the crawl button and check the nip width that
appears on the water oscillating roller.
Turn the adjustment screws (B) to adjust the pressure.
The adjustment screws are located on both the operation and non operation
sides. When turning them in the "+"direction (counterclockwise), the
pressure will be increased.