KROHNE DW 181-182-183-184 EN - Manual (Page 22)

22 Installation and operating instructions DW 181 - 184
5.5 Basic servicing procedures
DW 181…4 servicing by the customer is limited by warranty to:
• Changing the position of the dial on the type A indicator
• Removing the display assembly
• Removing the spring-loaded probe assembly
• Changing gaskets in DW 183 flow controllers
Other repairs must be done by KROHNE-authorized service staff.
Read all servicing instructions carefully.
5.5.1 Changing the position of the dial on the type A indicator
Warning :
Do not remove the 4 bolts holding the pressure housing onto the measuring
tube.
For the “A” indication version, it may be necessary to modify the position of the dial when flow
direction has been reversed, in order to read the flow rate correctly. Follow the steps 1 to 6.
Step 1
Remove the locking pin and remove the cap.
1
Dial
2 Screwdriver
Step 2
Extract the pointer using an extractor or the flats of two screwdrivers placed at either side of the
pointer.
3
Pointer
4 Screwdriver
5 Dial
Step 3
Unscrew the dial.