Baker Hughes Masoneilan 536V, Instruction Manual

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11 | Baker Hughes Copyright 2021 Baker Hughes Company. All rights reserved.
Maintenance of the actuator
packing box
The actuator packing box requires minimum maintenance.
The PTFE - Kevlar packing rings have a square section and
a skive cut allowing easy replacement. The packing may be
added to or completely replaced without disassembling either
the actuator or regulator body S/A. Be sure to tighten packing
nut (20) lightly. Overtightening will cause excessive friction
resulting in sluggish performance.
● Recommended spare parts
* Complete subassembly includes: Plug-stem (183), Retaining ring (182), Seat ring (3e) and Spacer (3f). (See figure 2)
+ Non-existent on Cv 3.8

Only on range 10-40 ; 30-85 and 60-170 psi

Only on range 0,5-3 psi

Only on range 0,5-3 and 2-5 psi

Only on range 3-15 ; 10-40 ; 30-85 and 60-170 psi
Ref. Part Name Ref. Part Name Ref. Part Name
● 2 Seat Ring Gasket
+
17 Yoke 41 Diaphragm Washer
● 3 Seat Ring 18 Cap Screw (L. diaph. case to yoke) 43 Diaphragm Case (Upper)
3e Seat Ring (Only on Cv < 0.10*) 20 Packing Nut 44 Diaphragm Case (Lower)
3f Spacer (Only on Cv < 0.10*) 22 Actuator Spring 45 Cap Screw (Diaph. case)
4 Seat Ring Retainer

23 Reducing Ring 46 Nut (Diaph. case)
5 Packing Spacer 26 Actuator Stem 47 Actuator Stem Nut (Coupling)
6 Packing 27 Plug Stem Nut 52 Drive Screw
7 Packing Flange Stud 30 Actuator Stem Nut 53 Serial Plate
8a Mounting Nut

31 Actuator Packing Box 71 Spring Barrel
8b Packing Flange Nut ● 32 Actuator Packing 72 Spring Barrel Cap
9 Packing Follower 33 Upper Spring Seat 74 Cap Screw (Spring Barrel)
10 Packing Flange 34 Lower Spring Seat 101 Coupling
11 Safety Pin 36 Spring Adjuster

102 Spring Barrel Spacer
12 Plug and Stem ● 38
O-Ring

● 182 Retaining Ring (Only on Cv < 0.10*)
13 Body ● 39 Diaphragm 183 Plug-Stem (Only on Cv < 0.10*)
16 Mounting Screw

40 Diaphragm Plate
Parts Reference