Vacuubrand PC 3012 VARIO User Manual download pdf (Page 67)

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.: 999164 / 19/05/2009

page 67 of 75

Assembling the pump heads

➨ Bring connecting rod into a position in which the diaphragm

is in contact with the housing and centred with respect to

the bore.

Reassemble in reverse order.

➨ Install head cover with O-rings, valves and housing cover

with housing cover insert.

☞ Make sure that the valves are correctly seated: Valves at

the outlet with round centred opening under valve, valves

at the inlet with kidney-shaped opening beside valve.

☞ Pay attention that the diaphragm stays positioned centrally

so that it will become clamped uniformly between housing

and head cover.

➨ Screw in four socket head screws xing the housing cover

crosswise rst slightly, then tighten.

☞ Do not tighten until head cover is in contact with housing,

torque 12 Nm.

By measuring the pressure at the inlet port of the individual head:

Use a suitable vacuum gauge (e. g. DVR 2, cat. no.: 682902), make sure that it is correctly calibrated,

and measure the pressure at the inlet port. A vacuum of less than 120 mbar should be indicated.

☞ If the reading is higher, recheck the pump chamber and make sure that the valves and the dia-

phragms are correctly seated (diaphragms concentric with bore).

Individual performance check of a pump head:

Replace diaphragms and valves of the opposite side of the pump in the same

way!

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 73 74 75

No comments

Vacuubrand PC 3012 VARIO User Manual Page 67