KROHNE DW 181-182-183-184 EN - Manual (Page 24)

24 Installation and operating instructions DW 181 - 184
5.5.3 Cleaning the springs or changing the measuring system sub-assembly
Warning:
Remember to shut off the flow before
performing this operation
Step 1
UNSCREW the 4 nuts and washers dia. M12 (1).
Step 2
SEPARATE the two components (2) and (3) using a
screwdriver.
Step 3
REMOVE the pressure housing (2) in the direction of
the arrow F.
Either Step 4A…
CLEAN the springs (4)
… or Step 4B
CHANGE the measuring system sub-assembly
Step 5
REASSEMBLE by following instructions 1, 2, 3 and 4 in
reverse order. Take care to orient the measuring disc
(A) so that it is facing upstream.
5.5.4 Changing gaskets in DW 183 flow controllers
Warning:
Remember to shut off the flow before
performing this operation
Step 1
UNSCREW 4 nuts and washers dia. M12 (1).
Step 2
SEPARATE the two components (2) and (3) using a
screwdriver.
Step 3
REMOVE the pressure housing (2) in the direction of
the arrow F.
Step 4
REMOVE the gaskets from their recess (4).
Step 5
CHANGE the gaskets and reassemble by following
instructions 1, 2, 3 and 4 in reverse order. Take care to
orient the measuring disc (A) so that it is facing
upstream.