Fisher 3660 - Page 38

Instruction Manual
D101402X012
3660 and 3661 Positioners
September 2015
38
Figure 25. Fisher 3661 Positioner Assembly (continued)
SECTION B‐B
51B3945
Key Description
51 Adhesive, Loctite
R
4210t Prism
R
Instant Adhesive,
(not furnished with positioner)
54 Self‐tapping screw, stainless steel (2 req'd)
55 Cover plate for 3661, A95052
56* Cover plate gasket for 3661, silicone
57 Hex nut, aluminum/chromate
58 Pipe plug, stainless steel
1 req'd for 3661 w/o output gauge option
2 req'd for 3660 & 3661 w/o instrument
and output gauge option
Key Description
79 Wire tie for 3660 with bypass valve only,
plastic
95* O‐ring, EPDM
(2 req'd for 3660; 3 req'd for 3661)
96 Plain washer, stainless steel
97* Cover screw gasket, silicone (2 req'd)
98 Washer, stainless steel (4 req'd)
99 Flapper spring stop, stainless steel
100* I/P converter module for 3661
*Recommended spare parts