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valve
and
following
paragraph 4.5. Remove and
check O-ring.
K. Fully retract boring bar by
turning
counterclockwise. See Figure
14. Do not permit boring bar
to turn, or plug will unthread.
Figure 14. Retract Boring Bar
L. Remove drilling machine and
tapping valve.
M. Check plug to make sure it is
aligned. If a unidirectional
plug, arrow on top of plug
should point in direction of
flow. If a bi-directional plug,
arrows
should
pipeline axis. See Figure 15.
retract
plug,
instructions
feed
tube
align
with
in
Figure 15. Check Plug Alignment
Note: Make sure the top of the
plug is below the top of the
nipple.
N. Advance set screw in plug into
nipple wall to prevent plug
from turning. See Figure 16.
Figure 16. Advance Plug Set Screw
3.3 Indicator Installation
3.3.1 Installing Flag and/or
Electrical Switch Indicator
Note: See Section 4.3.2 for
Rotary
Assembly.
A. Install drive sleeve in plug.
See Figure 17.
16
Cap
Indicator
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