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“Extended time” procedure
Section 4: Orifice plate installation and removal instructions
Owner and operator manual
January 2015
3-9008-001 Rev M
32.
Insert the Orifice Plate Carrier (8DM or 8DMC) into the Top (14) until the Upper Plate
Carrier Shaft (7) gears and plate carrier gear rack mesh.
33.
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.
34.
Once the Orifice Plate Carrier (8DM or 8DMC) is aligned, rotate the Upper Plate Carrier
Shaft (7) with the Operating Wrench (2), in a direction to lower the Orifice Plate Carrier
(8DM or 8DMC) into the Top (14) until all of the Orifice Plate Carrier (8DM or 8DMC) is
below the Sealing Bar Gasket (9A, 9A-HP or 9CF) surface.
Step 34
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.
