Manual

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.: 01-005-005-36-1
page 27 of 35 Translation of the original instructions
➨ Position valve heads, with hose nozzle, if applicable, con-
nection tube or connection fastener, and disc springs on
the valve seats. Position disc springs with large opening
downwards. Pay attention to the correct orientation of the
valve heads.
+ Center the valve head with respect to the valve seat. The
valveheadmustlieatonthevalveseat.
Valve head with gas ballast or hose nozzle connection:
➨ Insert square nut in the groove of the head cover or posi-
tion square nut in the groove and then screw on connec-
tion fastener.
+ Looselyfastenllisterheadscrew.
➨ Position clamping bracket with countersunk bores facing
upwards.
➨ Align the countersunk bores with the threaded pegs.
➨ Loosely fasten the countersunk screws and correct the
alignment of the valve heads if necessary.
➨ Tighten countersunk screws with Torx screwdriver T20.
+ Torque: 3 Nm.
➨ Bring the diaphragms into a position, in which they are in
contact with the housing and centered with respect to the
bore.
➨ Put on head cover with valve heads and connections at-
tached.
+ Pay attention to the correct orientation of the head cov-
ers:
Housing with head alignment pin: The head alignment pin
atthepumphousinghastotintotherecessatthehead
cover.
Housing with mark: Align the recess at the head cover with
the mark at the pump housing.
➨
Loosely screw in the Allen head screws at the head cov-
ersdiagonallyatrstslightlywithanAllenkeysize5,then
tighten.
+ Recommended torque: 12 Nm.
➨ Slide the caps into the head cover.
Afxtheconnectiontube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.
➨ 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atpliers.