Cleaning and inspecting the pump heads, Notice – VACUUBRAND PC 620 NT User Manual
Page 50
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
1: Cylinder pin / mark
2: Connecting rod
3: Housing
4: Washer
5: Diaphragm support disc
6: Diaphragm
7: Diaphragm clamping disc with square
head screw
8: Socket head screw
9: Blind
10: Head cover
11: Square nut
12: Fillister head screw
13: O-ring
14: Valve
15: Valve head
16:Hose nozzle
17: Connection fastener with hinged cover
18: Disc spring
19: Clamping bracket
20: Countersunk screw
21: Hose clip
22: Connection tube
Cleaning and inspecting the pump heads
The replacement of the diaphragm and the replacement of the valves can be carried out separately.
☞
To replace the valves, the head cover has not to be removed.
☞
To maintain the diaphragms, the valve heads and the fittings don’t have to be disassembled. The
head covers can be removed conjointly with the assembled valve heads and fittings.
View of the disassembled pump head parts
(fig.: MD 4C NT)
Replacing diaphragms and valves is described for a pump
MZ 2C NT (PC 510/511/520 NT).
Perform replacing diaphragms and valves at pumping units PC
610/611/620 NT analogously (see also ahead).
NOTICE
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