Instruction Manual
D101728X012
3710 and 3720 Positioners
September 2017
50
Key
Description
82
Lithium Grease (not furnished with positioner)
83
Anti‐seize Sealant
(not furnished with positioner)
84
Cap screw, hex socket
For attaching the converter to the
positioner base plate (2 req'd)
85*
O‐ring (2 req'd)
Used between positioner base plate and converter
86
Pipe plug, hex head
87
Anti‐seize Lubricant (not furnished with positioner)
88*
Filter
89
I/P converter module
90
Nameplate, converter module
91
Screw, self‐tapping, pan head, slotted,
for positioner nameplate (2 req'd)
Positioner Mounting Parts
(refer to figure 33)
Note
To mount the 3710 or 3720 positioner to an existing actuator, replace
the actuator cover plate with a new plate which has the three positioner
mounting holes and the 5/8‐inch purge option knockout plug. Contact
your
or Local Business Partner for any additional
parts required for controller mounting.
Key
Description
Actuator cover plate
For 1051/1052 size 30
, 40 and
1061 size 30
For 1051 size 60, 1052 size 60, 70, and
1061 size 30, 40, 60
Key
Description
42
Tie bar
For 1051/1052 size 33 and 1066 size 20, use tie bar extension
(key 44) instead of the tie bar (key 42)
For 1051/1052 sizes 30
, 40, 60
For 1052 size 20, size 70
For 1061 sizes 30, 40, 60, 68, sizes 80, 100
For 1066 size 27, size 75
43
Mounting plate
For 1052 size 20
For 1051/1052 size 33
For 1061 sizes 80, 100
For 1066 size 20, 27, size 75
For 2052 size 1, 2, 3
44
Tie bar extension
For 1051/1052 size 33
For 1066 size 20
For 2052 size 1, 2, 3
45
Cap screw, hex head
For attaching the mounting plate to
the actuator cover plate
For 1052 size 20 (4 req'd)
For 1051/1052 size 33 (2 req'd)
For 1066 size 20, size 27, size 75 (2 req'd)
For 2052 size 1, 2, 3
46
Cap screw, hex socket
For attaching the positioner base
plate to the mounting plate or
actuator cover plate
For 1051/1052 sizes 30
, 40, 60;
1052 size 70; 1061 sizes 30, 40,
60, 68 (3 req'd)
For 1051/1052 size 33; 1052 size 20;
1061 sizes 80, 100; and
1066 sizes 20, 75 (3 req'd)
For 1066 size 27 (3 req'd)
For 1066 size 75 (3 req'd)
For 2052 size 1, 2, 3
*Recommended spare parts
2. The size 30 actuator is no longer manufactured by Emerson.
The 3710 positioner is available for field installation on existing
size 30 actuators.
