When doing so, check that the liquid material vat stopper is resting on the edge of the liquid material vat.
MEMO
In the next procedure (step 5), the liquid material vat retaining screws are only loosened by a fixed amount. For this reason, the liquid material vat retaining screws
are tightened securely at this stage.
5.
Loosen the liquid material vat retaining screws one turn.