Operating Instructions_VF335_en.pdf - 第345页
8|Service and maintenance 8.7.4 Checking the pneumatic system (in general) ü Visual inspection of all the hoses and connections of the pneumatic system. a) Check hoses for leaks and tightness. b) Have heavily discolour…
8|Service and maintenance
8.7.3 Visual inspection of the differential pressure switches
13 326 4
4 25 3
Fig.114: Differential pressure switches
ü Visual inspection of the differential pressure switches:
a) Check hose connectors (2) and hoses (3).
ð The hoses must be soft, flexible and transparent.
b) Have heavily discoloured, porous or hardened hoses replaced by qualified staff.
ð The tubes in the area of the soldering modules are secured with hose clamps
(6).
a) Check the hose clamps (6) on the differential pressure switches. Tighten loose
hose clamps with a suitable screwdriver.
b) Visual inspection of the plug-in connectors (4) and connection lines (5). Have
damaged plug-in connectors and lines replaced by a qualified electrician.
ð The process has now been completed.
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 344/695
8|Service and maintenance
8.7.4 Checking the pneumatic system (in general)
ü Visual inspection of all the hoses and connections of the pneumatic system.
a) Check hoses for leaks and tightness.
b) Have heavily discoloured, porous or hardened hoses replaced by qualified staff.
ð The process has now been completed.
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 345/695
8|Service and maintenance
8.7.5 Checking the nitrogen system (in general)
ü Visual inspection of all the hoses and connections of the nitrogen system:
a) check hoses for leaks and tightness.
b) Have heavily discoloured, porous or hardened hoses replaced by qualified staff.
ð The process has now been completed.
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 346/695