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Always replace both diaphragms.
(see breakdown effect analysis, page 22)
REPAIR
Repairs must be carried out by qualified personnel (experts). (VBG 87).
Only our (the manufacturer's) replacement parts may be used.
Our replacement obligation for the pumps and equipment no longer applies if replacement
parts other than ours are used (Produkthaftungsgesetz/Product Liability Law of 15 Dec 1989)
After dismantling, all parts which are to be reused should be cleaned thoroughly.
Do not damage sealing surfaces; therefore do not throw parts around or knock them.
Do not use any tension tools.
Check all PE sealing rings thoroughly for damage, replace if necessary. Always replace any
FPM O-rings which have been dismantled.
Apply lubricant to all threads and fits with lubricant before assembling (lightly grease), and
on no account use grease containing silicone.
Compressed air supply to diaphragm pump must be interrupted and the pump made free
from pressure before any dismantling work.
When traces of wear can be seen on running or sealing surfaces the components affected
must be exchanged.
17
B.6.50.80-B-GB
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