VACUUBRAND PC 620 NT - Manual (Page 55)

page 55 of 63
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
➨ Slot the blinds into the head cover.
➨ Put head cover cowling on.
➨ Slide the head cover cowling in the grooves of the blinds
and under the connection fasteners.
➨ Install the washers. Use a Torx screw driver TX20 to screw
in the 4 screws fixating the head cover cowling.
➨ Slip connecting tube onto hose connection of valve head.
➨ Slide on the tube and the hose clip until touching the nose
at the valve head.
➨ Close hose clip with flat pliers.
➨ Screw in the socket head screws at the head covers di-
agonally first slightly with a hex key size 5, then tighten.
☞ Recommended torque: 12 Nm.
➨ Position clamping bracket with countersunk bores up-
wards.
➨ Align the countersunk bores with the threaded pegs.
➨ Fasten the countersunk screws slightly and correct the
alignment of the valve heads if necessary.
➨ Tighten countersunk screws with Torx screw driver TX20.
☞ Torque: 3 Nm.
➨ Bring the diaphragms into a position in which they are in
contact with the housing and centred with respect to the
bore.
➨ Put on head cover with valve heads and connections.
☞ Pay attention to the correct orientation of the head covers:
Housing with cylinder pin: The cylinder pin at the pump
housing has to fit into the recess at the head cover.
Housing with mark: Align the recess at the head cover with
the mark at the pump housing.