Owner and operator manual
Section 4: Orifice plate installation and removal instructions
3-9008-001 Rev M
January 2015
“Quick change” procedure
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continue to rotate the Upper Plate Carrier Shaft (7) until the Upper Plate Carrier Shaft
(7) gears and the Plate Carrier (8DM or 8DMC) gear rack ratchet.
Step 18
19.
Remove the Orifice Plate Carrier (8DM or 8DMC) from the Top (14) and perform the
scheduled work on the Orifice Plate (13) and Orifice Plate Carrier (8DM or 8DMC).
20.
Insert the Orifice Plate Carrier (8DM or 8DMC) into the Top (14) until the Upper Plate
Carrier Shaft (7) gears and the plate carrier gear rack mesh.
21.
With the Operating Wrench (2), rotate the Upper Plate Carrier Shaft (7), located in the
Top (14), a minimum of one quarter turns OPPOSITE of the direction required to lower
the Orifice Plate Carrier (8DM or 8DMC) into the Top (14). This action allows the Orifice
Plate Carrier (8DM or 8DMC) to properly “align” the Orifice Plate Carrier (8DM or
8DMC) with the plate carrier shaft.
Important
Align the Orifice Plate Carrier (8DM or 8DMC) with the Upper Plate Carrier Shaft (7). Failure to do
so may damage the Senior.
PRESSURIZED FLUID HAZARD
Do not lower the Plate Carrier (8DM or 8DMC) directly onto the slide valve as it may damage the
sealing features and release pressurized fluid.
Damaging the sealing features may cause contamination and/or accumulation of volatile gas
mixtures, resulting in serious injury or death and equipment damage.
