Installation
Checking fo r p resence o f nitrogen (N
2
)
in pole parts
GE Information08- 2016 L31- 064EN/05
3/4
Checking for presence of N
2
gas in columns, continued
Process
The table below gives the steps of manual checking for presence of N
2
gas
in columns :
Step Action Diagram
1 Remove the plug (1) and install
the filling tool (3), tighten the
filling tool BY HAND
.
3
1
2 Unscrew the valve- cap (4) and
press on the valve briefly :
some gas should escape
.
If no gas is expelled, contact
our Customer Service.
4
3 D Replace the valve- cap (4)
and remove the filling tool (3).
D Re- install the plug (1), ap-
plying a tightening torque of
4 daN.m; leak- tightness is
only guaranteed if this condi-
tion is respected.
1
3
4
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