9�2
Maintenance intervals
Î
Inspect the WEH
®
Product at regular intervals depending on the respective operating
conditions, but at least every 3 months. After 20,000 cycles or 3 years at the latest,
depending on what happens first, starting from the date of delivery (invoice/ goods
issue date by WEH or the distributor), the WEH
®
Product must be sent to WEH for
maintenance.
These intervals can also be significantly shorter, which depends especially on your
individual application/use. Therefore, in case of abnormalities – especially during
regular inspection – send the WEH
®
Product immediately to WEH for maintenance.
If the WEH
®
Product is not regularly inspected and sent to WEH for maintenance,
leakage may occur and under certain circumstances this may result in failures and/
or accidents.
- Dry running is possible with devices for cold and hot water applications. Indications
of dry-running could include stiffness when connecting and disconnecting. If these
indications occur, send the WEH
®
Product to WEH for maintenance.
9�3
Overview of minimum intervals for inspection and maintenance
No�
Inspection
Initial
(before com-
missioning for
the 1st time)
Daily
Weekly
1
Check sealing disc for damage and
dirt accumulation
X
X
2
Check exterior for damage and dirt
X
X
3
Check sliding sleeve for damage
X
X
4
Check clamping jaws for correct
functioning and any damage
X
X
5
Check connector and media line for
leakage (see
X
X
No�
Maintenance
After 3 years or 20,000 cycles*
7
Return to WEH for in-factory main-
tenance
X
* whichever comes first
Note:
Component arrangement see
Chapter 3. Product overview / product description on
Î
If your application requires, set shorter intervals thanindicated above. A significant
shortening of the minimum intervals is particularly necessary if abnormalities are
found during the inspections.
MD-10235-L51-R1.0.0-03
Page 20
Operating instructions
AE
