Recovering The Plug - TDW PIG-SIG IV Operating And Maintenance Instructions Manual

Scraper passage indicator
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E. Remove the shaft from the
cap/housing
Remove from the bottom. This
shaft can be discarded. Retain
white Teflon O-ring in bottom
of hex cap.
F. Place
the
assembly over the extension
shaft
and
extension (Figure 37). Orient
housing as desired.
Figure 37. Install Cap/Housing
Assembly
G. Replace washer and spacer, in
that order, on the extension
shaft.
H. Return to paragraph 4.3 steps I
through O for completion of
assembly.

3.5 Recovering the Plug

3.5.1 Preparations
A. Remove cover from the box,
or in the case of the Rotary
assembly.
cap/housing
thread
onto
Cap Indicator, the pipe cap. If
the latter, proceed to step G.
B. Disconnect electrical wiring
from
electrical model.
C. Loosen set screws on spring
retainer and remove it as well
as top torsion spring. Loosen
set screws on cam. Make sure
cam turns freely on the shaft.
See Figure 38.
Figure 38. Loosen Set Screws
23
microswitch
if
an

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