Version date: March 26 th 2018 133Operator ManualNA 64-- series gravity3.4 Connection of cooling water• Connect the supply hose to a washing machine tap (3/4’’ water tap withventilation). The water pressure must be a minimum of 1 bar and a maximumof 3 bar.• Connect the discharge hose to the discharge pipe.When connecting, please observe the local water boardconnection conditions.The machine has a check valve. This valve along with aeratedfaucet prevents the backflow of water into the water supply.When setting up or moving the machine, make sure that thewater supply and discharge hoses cannot bend or otherwisebecome blocked.Make sure that no water can enter the machine. If water comesinto contact with electrical parts, this can cause damage and/ordanger.3.5 Adjusting castorsThe castors under the machine can be adjusted in height.Make sure that the machine does not topple over when adjustingthe castors.1. Tighten all castors as far as possible.2. Now adjust the castors so that the machine leans slightly forward(this allows rinsing and washing water to flow to the draining aperture at thefront of the machine).Do not unscrew the castors by more than 5 to 8 mm.3. Place the front castors on the brake.Make sure that the brake of the two front castors is secured afteradjusting.