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4660 Pressure Pilot
May 2014
5. Repeat steps 2 through 4 if both set point assemblies are to be replaced on a high‐low version of the pilot.
6. Install the front plate and the panel mounting plate (if required).
7. Align the three posts on the set point indication module(s) with the three holes on the front plate.
8. Push the set point indication module(s) flush with the front plate and tighten the set screws. Do not overtighten the
set screws.
9. Perform steps 6 through 11 of the Bourdon tube/flapper assembly replacement procedure.
Parts Ordering
Whenever corresponding with your Emerson Process Management sales office about this equipment, always mention
the pilot serial number located on the nameplate (key 76, figure 8) on the rear of the pilot. When ordering
replacement assemblies or parts, refer to the 11‐character part number of each assembly or part as found in the
following parts list.
WARNING
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 may void your warranty and hazardous area approval, might adversely affect the performance of the
instrument, and could cause personal injury and property damage.
Parts Kits
Description
Block‐and‐Bleed Relay Assembly
Block‐and‐Bleed Relay Replacement Assembly
(Includes block‐and‐bleed assembly
and keys 53 and 57)
Bourdon Tube/Flapper Assembly
Bourdon Tube/Flapper Assembly (Includes
Bourdon tube/flapper and keys 18, 27, 73)
Stainless Steel Bourdon Tube
Bourdon Tube Rating
6.9 bar (100 psig)
17.2 bar (250 psig)
34.5 bar (500 psig)
69.0 bar (1000 psig)
103.4 bar (1500 psig)
344.8 bar (5000 psig)
517.1 bar (7500 psig)
20
Key
Part Number
R4660XAVR52
R4660XBTFJ2
Front Cover Assembly
R4660XBTFK2
R4660XBTFL2
R4660XBTFM2
R4660XBTFN2
R4660XBTFR2
R4660XBTFS2
Description
NACE Compliant Bourdon Tube
Bourdon Tube Rating
6.9 bar (100 psig)
17.2 bar (250 psig)
34.5 bar (500 psig)
69.0 bar (1000 psig)
103.4 bar (1500 psig)
172.4 bar (2500 psig)
344.8 bar (5000 psig)
517.1 bar (7500 psig)
689.5 bar (10,000 psig)
Front Cover Assembly (Includes keys 4,
6, 12, and 19)
Instruction Manual
D200163X012
Part Number
R4660XBTF12
R4660XBTF22
R4660XBTF32
R4660XBTF42
R4660XBTF52
R4660XBTF62
R4660XBTF72
R4660XBTF82
R4660XBTF92
R4660XFCA22
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