XIX. Reassembly of Pilot Valve
A. Lubricants and Sealants
1. Lubricate all O-Rings, except those made from
silicone, and spring seals sparingly with silicone
grease (Baker Hughes P/N SP505).
2.
Seal all pipe threads with Teflon tape or pipe
sealant (Baker Hughes P/N SP364-AB).
3. Lubricate standard threads and bearing points
with Flourolube GR362 (Baker Hughes P/N
4668601) or equivalent.
B. Assembly of 39PV07/37
1. Making the Main Pilot.
2. Making the Adjuster Assembly,
This assembly consists of:
1 – Adjuster Bottom
1 – Adjuster Top
1 – Spring Seal (Adjuster Top)
1 – O-Ring (Adjuster Top)
1 – O-Ring (Adjuster Bottom)
a. Check the Adjuster Top for burrs at the spring
seal lead in chamfer. Remove any burrs using
a polishing cloth.
b. Install Spring Seal (Adjuster Top) into Adjuster
Top using insertion tool as shown in Figure 93.
i. Lubricate Spring Seal (Adjuster Top)
with silicone grease.
ii. Install Spring Seal (Adjuster Top) onto
Plunger Cylinder with spring facing
away from Plunger Cylinder.
iii. Insert Plunger into Plunger Cylinder
until Plunger lightly contacts Spring
Seal (Aduster Top).
iv.
Insert Funnel Tube, chamfer side first,
over the Plunger and Spring Seal
(Adjuster Top). Stop when Spring Seal
(Adjuster Top) is about half way inside
the Funnel Tube as shown in Figure 56.
v. Remove Plunger. Insert Funnel Tube
Assembly into Adjuster Top until Funnel
Tube contacts Spring Seal (Adjuster
Top) gland.
vi.
Push down on Plunger cylinder to insert
Spring Seal (Adjuster Top) into Adjuster
Top as shown in Figure 57.
vii. Remove Funnel Tube Assembly.
viii. Inspect Adjuster Top to make sure that
Spring Seal (Adjuster Top) did not flare
out during installation and that the
Spring Seal (Adjuster Top) is oriented
as shown in Figure 58.
Figure 57: Plunger Cylinder
c.
Thread Adjuster Top clockwise onto Adjuster
bottom and torque to 27±2 ft-lbs (37± 2.7
N-m).
d. Lubricate Main Piston stem and cycle Main
Piston through Spring Seal (Adjuster Top)
five times.
Note: Do not install adjuster assembly into Pilot
Base with O-Rings installed without
wrench tightening Adjuster Top to
Adjuster Bottom together. Adjuster Top
can get stuck in Pilot Base if the Adjuster
Top is not tighten properly.
Adjuster Top
Plunger Cylinder
Spring Seal
(Adjuster Top)
Funnel Tube
Spring Seal (Insert)
Adjuster Top
Adjuster Bottom
Figure 58: Adjuster Top Assembly
Spring Seal
(Main Piston)
Funnel Tube
Plunger Cylinder
Plunger
Figure 56: Funnel Tube
Consolidated 2900 Series Generation II POSRV Instruction Manual
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