TDW PIG-SIG V - Page 35

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Section IV – Pipeline Under Pressure
2.0 Continued J. Check the O-ring on the PIG-SIG V for any
damage. Replace if necessary.
K. Ensure the O-ring is not twisted. Lubricate the O-
ring with silicone grease and the threads wit
h
P
TFE grease (anti-seize) (Figure 4.11).
L. While holding the body tube, slowly rotate th
e
f
eed tube counterclockwise (Figure 4.12) until t
he
l
ast thread of the PIG-SIG V is flush with the
bottom of the threaded adapter (Figure 4.13).
M. Using a marker pen, place a mark on the body
tube at the base of the feed tube.
N. Slowly rotate the feed tube counterclockwis
e
(
Figure 4.14) until the feed tube is at zero. Wit
h
t
he PIG-SIG V fully retracted, ensure that th
e
t
rigger does not extend past the end of the drilli
ng
m
achine adapter threads.
Figure 4.11. Lubricate Threads
Figure 4.12. Rotate Feed
Tube
Figure 4.13. PIG-SIG V Flush with
Bottom of Thread Adapter
Figure 4.14. Feed Tube at
Zero
⚠
CAUTION
A damaged O-ring can create a
hazardous environment from leaking
fluids and result in personal injury
and/or property damage.