TDW PIG-SIG V, Operating And Maintenance Instructions Manual

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Section IV – Pipeline Under Pressure
2.0 Installation
2.6 Setting The Plug
A. Remove the crank handle from the hex drive.
B. Unlock the boring bar and feed tube by the
following:
Model T-101a : Loosen the 1/8-inch Allen socket
head screw on the bearing retainer nut (Figure
4.30).
Model T-101b : Remove the locking cap (Figure
4.31).
Figure 4.30. T-101a. Figure 4.31. T-101b
C. Rotate the feed tube counterclockwise
approximately 24 turns, retracting the plug holder
two inches above the PIG-SIG V. Ensure the hex
drive does not rotate, otherwise the PIG-SIG V
will unthread from the fitting.
D. Check the seal on the PIG-SIG V by opening the
bleeder valve on the drilling machine for several
minutes (Figure 4.32). Leave the bleeder valve
open after pressure is completely relieved.
⚠ CAUTION
Do not turn the crank handle
counterclockwise with the 1/8-inch
Allen socket head screw tightened or
the locking cap on the machine. This
will unthread the PIG-SIG V.