PROCESSTEC ViscoTwin 130 G8 Operation & Maintenance Manual page 76

4. MAINTENANCE
STEP 5)
Select a feeler gauge that is sized to this "half-gap"
dimension, and insert it at S30, for use as a shim.
STEP 6)
Turn the Driven Shaft Spindle (Pos. 2201) until it
closes onto the feeler gauge/shim at S30. If done
correctly, this will now give you the exact same
gap at S20.
STEP 7)
Hand tighten just ONE (1) Socket Head Cap Screw
(Pos. 2186). The shaft should be blocked and both
spindles turn synchronized.
Page 70 PROCESSTEC INC. 2022