3660 and 3661 Positioners
Instruction Manual
Form 5265
March 2006
29
5. To mount the positioner on the actuator, refer to
the Positioner Mounting section.
6. Install a new converter, and secure to the
housing with the two captive screws. Reconnect the
input signal wires.
7. Refer to the Calibration section for the calibration
procedure.
Parts Ordering
When corresponding with your Emerson Process
Management sales office about this equipment,
always mention the positioner type number. When
ordering replacement parts, refer to the part number
of each required part as found in the following parts
list.
Note
Use only genuine Fisher replacement
parts. Components that are not
supplied by Emerson Process
Management should not, under any
circumstances, be used in any Fisher
instrument. Use of components not
supplied by Emerson Process
Management will void your warranty,
might adversely affect the
performance of the instrument, and
might jeopardize worker and
workplace safety.
Note
Neither Emerson, Emerson Process
Management, Fisher, nor any of their
affiliated entities assumes
responsibility for the selection, use,
and maintenance of any product.
Responsibility for the selection, use,
and maintenance of any product
remains with the purchaser and
end-user.
Parts Kits
Repair Kits
Key
Description
Part Number
Type 3660 w/0.2 to 1 bar
(3 to 15 psig) input
R3660X00012
Key
Description
Part Number
Type 3660 w/0.4 to 2 bar
(6 to 30 psig) input
R3660X00022
For Type 3660, the kits contain keys 9, 26, 27, 28, 29, 43, 44,
45, 49, 95, and 97. Keys 43, 44, 45 and 49 are used for
Type 3660 with bypass only. An additional O-ring is
included in kit R3660X00012, but is not used for the
Type 3660.
Type 3661
R3660X00012
For Type 3661, the kit contains keys 9, 26, 27, 28, 29, 43, 44,
45, 49, 95, and 97. Keys 43, 44, 45, and 49 are
included in kit R3660X00012, but they are not used
for the Type 3661. An additional O-ring is also included in
the kit for the I/P converter outlet.
Mounting Kits
Types 1250 and 1250R, sizes 30 and 34
Clamp mounting (kit contains key numbers 64, 65, 66,
67, 68, 69, and 70)
21B3931X0A2
Center-bolt mounting (kit contains key numbers 68, 69,
70, 71, and 72)
21B3932X0A2
Types 1250 and 1250R, size 45
Clamp mounting (kit contains key numbers 64, 65, 66,
67, 68, 69, 70, and 101 through 104)
21B3931X0B2
Center-bolt mounting (kit contains key numbers 68, 69,
70, 71, 72, and 101 through 104)
21B3932X0B2
Types 657 and 667
Sizes 30, 34, and 40 (kit contains key
numbers 69, 70, 82, 83, 84, 85, 86, 87, 88,
89, 90, 91, 92, and 93)
31B6741X0A2
Sizes 45 and 46 (kit contains key
numbers 70, 82, 83, 84, 85, 86, 87, 88,
89, 90, 91, 92, and 93)
31B6741X0B2
Sizes 50 and 60 (kit contains key
numbers 70, 82, 83, 84, 85, 86, 87, 88,
89, 90, 91, 92, and 93)
31B6741X0C2
Type 3024S (kit contains key numbers 64, 65, 66,
67, 68, 69, and 70)
21B3931X0C2
Parts List
Positioner Common Parts
Key
Description
Part Number
1
Housing assembly, A03600
For Type 3660
31B7319X012
For Type 3661
41B7321X012
2*
Valve assembly, A96061
11B3889X012
3
Spring, 316 stainless steel
11B3892X012
4*
Restrictor assembly, aluminum (includes
filtration screen)
11B3887X012
5
Damping screw, stainless steel
11B3893X012
6
Calibration tool, aluminum
11B3950X012
7
Cheese head screw stainless steel
(7 req’d for Type 3660;
13 req’d for Type 3661)
11B3938X012
8
Cover plate assembly, aluminum
11B3894X012
*Recommended spare parts
