Masoneilan 74000 Series Control Valves Instructions Manual | 15
Copyright 2021 Baker Hughes Company. All rights reserved.
Parts Reference Table for Models 51/52/53 Actuators
Ref
No. Description
Ref
No. Description
Ref
No. Description
1
Yoke
24
Hexagon bolt
47 Locking pin case
2
Piston rod S/A
25 Spring lock washer
48
Pin
3
Lower spring button
26
Indicator plate
49 Spring
4
Spring
27
Cross recessed head screw
50 Hexagon socket set screw
5
Hexagon socket head cap
screw
28 Exhaust pipe
51
Guide key
6
Spring lock washer
29 Spring lock washer
52 Worm gear
7
Spring tube
30
Plug
53
Spacer tube
• 8
Guide bushing 3
31
Piston S/A
54
Adapter
9
Compression bolt
• 32
Guide bushing
55 Set screw
10
Upper spring button
• 33
O ring (Piston rod)
56 Worm
11
Thrust bearing
• 34
Rod scraper
• 57 Bearing
12 Compression nut
35
Hexagon bolt
58 Retaining ring
13
Separator plate Model 52/53
36 Spring lock washer
59
Hand wheel shaft
14
Cylinder tube
37
Gear box
60 Key (Worm)
15
Cylinder tube
38
Gear box cover S/A
61
Key (Handwheel)
• 16
Guide ring
• 39 O ring
62 Retaining ring
17
Top plate
• 40
Thrust bearing
63
Handwheel
18 Set screw
41
Adjustment screw
64 Grip
19
Center bolt
42 Locking nut
65 Directional plate
20 Hexagon nut
43
Adjustment nut
66 Self locking nut
• 21
O ring (Piston, Top plate)
44
Piston rod engagement
67 Operating information plate
22 Split clamp
• 45 Bearing
68 Drive screw
23
Indicator arm
46 Retaining pin
69
Separator plate (Model 51)
• Recommended Spare Parts
70
Volume chamber tube
Table 7 - Models 51/52/53 Actuators Parts List