VACUUBRAND PC 620 NT plastic housing - Manual (Page 102)

page 102 of 113
➨
Bring the diaphragms (F) into a position, in
which they are in contact with the housing
(C) and centered with respect to the bore.
➨
Put on head cover (J) with valve heads (O)
and connections attached.
+
Pay attention to the correct orientation of
the head covers:
Housing with head alignment pin: The head
alignment pin (A) at the pump housing (C)
has to fit into the recess at the head cover
(J).
Housing with mark (A): Align the recess at
the head cover with the mark at the pump
housing.
➨
Loosely screw in the Allen head screws (H)
at the head covers diagonally at first slightly
with a 5 mm wide Allen key, then tighten.
+
Recommended torque: 8.9 ft . lb
f
(12 Nm).
➨
Slide the caps (I) into the head cover.
H
Affix the connection tube (V) to the other side
of the pump, as well as the hose connection to
the inlet or outlet of the vacuum system at the
valve head (O).
➨
Slip connecting tube (V) onto hose connec-
tion of valve head.
➨
Slide on the tube and the hose clip (U) until
touching the nose at the valve head.
➨
Close hose clip (U) with flat pliers.
➨
Put head cover cowling on.
➨
Slide the head cover cowling in the grooves
of the caps (I) and under the connection
fasteners (Q).
➨
Install the washers. Use a Torx driver T20 to
attach the 4 screws holding the head cover
cowling.
I