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3610J and 3620J Positioners
10. Install the assembly from step 7 to the 585C
or 585CR actuator by sliding the mounting bracket
slot (see figure 6) onto the yoke leg cap screw. As
you attach this assembly to the actuator, center the
spring-loaded feedback arm under the feedback
roller (key 175) on the stem bracket (key 195). Align
the mounting bracket top holes (see figure 6) with
the cylinder holes and install the remaining two hex
head cap screws (key 196). Tighten all screws.
11. With the actuator still at mid travel and the top
edge of the feedback lever assembly perpendicular
to the actuator stem, install the adjuster
assembly/roller in the appropriate stem bracket slot
with the button head screw (key 173) so the roller
(key 175) is centered over the correct actuator travel
marked on the feedback lever assembly.
12. Tighten the feedback roller button head screw
(key 173) and replace the range spring (key 150,
figure 25).
13. Replace the positioner cover.
Installing the 3622 Electro-Pneumatic
Converter
If installing the converter on an existing pneumatic
positioner, refer to the Gauge Block Disassembly
procedures in the Maintenance section. The
converter module replaces the original pneumatic
gauge block. Refer to the 3622 Electro-pneumatic
Converter Assembly procedure to install the
converter. When calibrating the electro-pneumatic
positioner for a 4 to 20 milliampere DC input range,
use the range spring hole that corresponds to a 0.2
to 1.0 bar (3 to 15 psig) input range [0.8 bar (12
psig) span]. See tables 10 and 11 and figure 15 for
the range spring and range spring hole selection.
14
3610JP, 3611JP,
3620JP AND 3621JP
POSITIONERS
OFFSET TAPER
STRAIGHT TAPER
3610J AND 3620J
POSITIONERS
36A5654-A
A3234-1/IL
Figure 7. Nozzle Block Assembly
FLAPPER
Changing Positioner Types
All 3610J and 3620J Series positioners have the
same basic construction. For 3611JP or 3621JP, a
parallel flexure (key 179, figure 13) is added (not
required on 585 size 100 actuator). When changing
positioner types, other parts may require changing,
such as the nozzle assembly (key 116, figure 25),
the feedback lever assembly (key 117 or 170, figure
29), and the range spring (key 150, figure 25). Refer
to the Parts List for part number identification.
Changing parts may require partial disassembly and
reassembly as described in the Maintenance
section. Figure 7 illustrates the slight difference in
nozzle assemblies between the single-acting (3610J
and 3620J) and double-acting (3610JP, 3620JP,
3611JP and 3621JP) positioners. See the Changing
Positioner Types procedure in the Maintenance
section for additional information.
Pressure Connections
The positioner is capable of providing
full supply pressure to connected
equipment. To avoid personal injury or
equipment damage caused by parts
bursting from system overpressure,
make sure the supply pressure never
exceeds the maximum safe working
pressure of any connected equipment.
Instruction Manual
June 2008
WARNING
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