XVII. Disassembly of Pilot Valve (Cont.)
1: Standard material is a filter plug. For special
materials, vent assembly is supplied.
D. Cleaning
1. Clean parts to remove all rust, burrs, scale,
organic matter, and loose particles. Parts are to
be free of any oil or grease except for lubrication
as specified in this instruction.
2. Cleaning agents used shall be such that
effective cleaning is assured without injuring the
surface finishes or material properties of the
part.
3. Acceptable cleaning agents include
demineralized water, nonphosphate detergent,
acetone, and isopropyl alcohol. Parts must be
blown dry or wiped dry after cleaning.
4. If you are using cleaning solvents, take
precautions to protect yourself from potential
danger from breathing fumes, chemical burns,
or explosion. See the solvent’s Material Safety
Data Sheet for safe handling recommendations
and equipment.
5. Do not “sand blast” internal parts as it can
reduce the dimensions of the parts.
Follow
recommendations for
safe handling in the
solvent's Material Safety
Data Sheet and observe
safe practices for any
cleaning method
Part
No.
Nomenclature
1
Main Base
2
Adjuster Cap
3
Adjuster Top
4
Adjuster Bottom
5
Adjuster Lock Nut
6
Compression Screw
7
Compression Screw Lock Nut
8
Spring Washer
9
Spring
10
Insert Top
11
Insert Bottom
12
Main Piston
13
Cap (Compression Screw)
14
Cap Screw (Top Plate)
15
O-Ring (Adjuster Bottom)
16
O-Ring (Adjuster Top)
17
O-Ring (Insert)
18
O-Ring (Top Plate)
19
Bonnet
20
Spring Seal (Main Piston)
21
Spring Seal (Adjuster Top)
22
Spring Seal (Insert)
23
Field Test Connector
24
Vent Assembly/Bug Screen
(Field Test Connection)
25
Vent Assembly (Bonnet Vent)
1
27
Set Screw (Bonnet)
28
Piston Nose
29
Piston Retainer Nut
30
Set Screw (Piston)
31
Vent Seal (Adaptor)
32
Spring Seal (Vent Seal Adaptor)
33
Back-up Ring (39MV72 Only)
34
Top Plate
66 |
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