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6) Use locking bands provided to join adjacent sections of non-cuttable pipe as well as fi ttings. The male end of the terminal
section and other cuttable sections must be held to the female end of the adjoining pipe with at least three #10 x 1/2”
sheet metal screws. Drill a 1/8" hole through both outer pipes to start this screw. Use a drill stop or other means to
ensure that the drill bit does penetrate more than 3/8” into the outer pipe. Do not use a sheet metal screw longer
than 1/2”.
7) The only straight pipe that can be cut is the terminal section and the 19-1/2” section (P/N 100995-01) and the 80/125
straight riser (P/N 101163-01). To cut this pipe:
a) Cut the 19 1/2” section from the male end. After marking the desired length of the outer pipe, remove the plastic inner
pipe by pulling it out from the female end.
b) Cut the outer pipe only at the point marked in Step (b) using aviation shears, a hacksaw, or an abrasive wheel cutter.
Be careful to cut the pipe square. De burr the cut end with a fi le or emory cloth.
c) Cut the plastic inner pipe so that it will protrude 3/8” beyond the outer pipe when reinstalled in the outer pipe. Use a
fi ne tooth hacksaw or a PVC saw to cut the plastic pipe and be careful to cut the pipe square. De burr the cut edge of
the plastic pipe with a fi le, razor blade, or fi ne sandpaper.
d) Reinstall the inner pipe.
Figure 7.12: Cutting Outer Pipe
Figure 7.13: Cutting Inner Pipe