9.4 Disassembling the diaphragm head
NOTICE
Damage caused by pointed or sharp-edged tools
Sharp-edged tools damage pump parts during maintenance.
► Never disconnect pump parts such as diaphragm heads using pointed or sharp-edged tools.
► Never use pointed or sharp-edged tools to lift diaphragms.
► If necessary, use a rubber mallet to loosen parts.
Fig. 9:
Disconnecting diaphragm head
35
1
37
12
2
3
4
5
Fig. 10:
Disassembling the diaphragm head
1
Diaphragm head
4
Head cover
2
O-rings
5
Connection rod
3
Valves
Disassembling the diaphragm head
Tools required
● Allen key (5 WAF)
● Rubber mallet
1. Use the Allen key to unscrew the four cheesehead screws from the diaphragm head.
2. Remove top of housing (diaphragm head and head cover).
– Do not allow the head cover to fall out of the diaphragm head when doing so.
3. Remove the head cover from the diaphragm had in order to check the valves.
4. Note the position of the valves and O-rings, and remove them.
Maintenance
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