Weh TW156, Operating Instructions Manual

Page: 23 / 52

9�2 Maintenance intervals
Î Inspect the WEH
®
Product at regular intervals depending on the respective oper-
ating 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.
9�3 Overview of minimum intervals for inspection and maintenance
No� Connector Inspection
Initial
(before com-
missioning for
the 1st time)
Weekly
1 all TW156 Check exterior for damage and dirt
X X
2 all TW156
Check clamping jaws for correct
functioning and any damage
X X
3 all TW156
Check connector and media line for
leakage (see Chapter 7. Installation )
X X
4 TW156H
Check function and ease of move-
ment of the hand lever
X X
5 TW156V
Check the tightening torque of the
grub screw
X X
No� Connector Maintenance Monthly
After 3 years or
20,000 cycles*
6 TW156H
Lubricate hand lever
( Chapter 10. Lubrication )
X
7 all TW156
Return to WEH for in-factory
maintenance
X
* depending on what happens first
Note: For component arrangement see Chapter 3. Product overview / product descrip-
tion on page 11 .
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-10021-L51-R2.1.0-03
Page 23
Operating instructions AE