66 “Quick change” procedure
Section 4: Orifice plate installation and removal instructions Owner and operator manual
January 2015 3-9008-001 Rev M
29. Using the Operating Wrench (2), rotate the Slide Valve Shaft (5) to the OPEN position.
Step 29 Step 30
30. Rotate the Upper Plate Carrier Shaft (7) with the Operating Wrench (2) in the direction
to lower the Orifice Plate Carrier (8DM or 8DMC) into the Body (4).
31. Rotate the Lower Plate Carrier Shaft (6) with the Operating Wrench (2) until the Orifice
Plate Carrier (8DM or 8DMC) cannot be lowered further.
Step 31
Important
Resistance to turning will be present when the Orifice Plate Carrier (8DM or 8DMC) is
approaching its proper measurement position due to friction between the Senior Body (4) and
the Orifice Plate (13) seal.
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