Fisher 546 - Page 19

Instruction Manual
D200108X012
546 Transducer
March 2015
19
Figure 10. Fisher 82 Relay Assembly
A1504‐1 / IL
NOTE:
KEY 76 IS NOT SHOWN
APPLY LUBRICANT/SEALANT
RESTRICTION HOLES
Key Description Part Number
29
(1)
O‐Ring, nitrile
31 Hex Nut, brass pl
32
(1)
Washer
33 Washer, brass pl
34
(1)
Washer
35
(1)
Washer
36* O‐Ring, nitrile (2 req'd) 1D687506992
37* O‐Ring, nitrile 1C782206992
38
(1)
E‐Ring
40
(1)
Armature
41
(1)
Coil Support
42
(1)
Coil Ass'y
48
(1)
Magnet
49
(1)
Pole Piece
50
(1)
Top Pole Piece Plate
51
(1)
Bottom Pole Piece Plate
52
(1)
Travel Stop
53
(1)
Terminal Mounting Bracket Ass'y
55
(1)
Span Adjustment Ass'y
56 Bellows Screw, brass
Key Description Part Number
57* Bellows Ass'y, brass
Full Size, 21 mm (27/32 inch) O.D. 1U3958000A2
Half Size, 13 mm (1/2 inch) O.D. 1U3975000A2
Quarter Size, 9.5 mm (3/8 inch) O.D. 1R6521000A2
58 Tubing Ass'y, brass/copper
94 Anti‐seize sealant
(not furnished with unit)
96 Silicone‐based lubricant, medium grade
(not furnished with unit)
103 Set Screw, SST/nylon (not shown)
105
(1)
Spacer
Relay (figure 10)
Note
The 546 relay is not repairable. If the relay is defective, order the 82
Relay Replacement Assembly (refer to Parts Kits).
*Recommended spare parts
1. Parts are not field repairable. The torque motor assembly should never be
disassembled because the magnetism in the torque motor will decrease
permanently. Shaded key numbers shown in figure 9 indicate parts that should not
be disassembled.