Campbell Scientific Sentek EnviroSCAN Access Tube Installation Guide - Manual (Page 49)

Removing access tubes
© Sent ek Pt y Lt d Page 46
4. Use the Tommy Bars to tighten the T-Handle and Expandable bung tightening tool to the extension
rods.
5. Insert this tool into the access tube until you feel the top of the bottom stopper bung.
6. Turn the tool slowly until the slot of the tool slides over the wing nut, which causes the tool to drop 1
cm (0.4 inch) downward. The spring on the side of the tool will make sure that enough pressure is
applied on the wing nut to enable you to pull the stopper up once the wing nut has loosened.
7. Now turn the Regular T-Handle anti-clockwise until you can pull the bottom stopper upwards and
remove it from the access tube. If the Expandable bung tightening tool starts to unscrew from the
extension rod, remove the entire assembly and tighten the connection between the extension rod
and the Expandable bung tightening tool with the tommy bars.
Step 2– Removing the Access Tube
1. Slide the diagonal parts of the Tube extraction tool so that they form a cylinder which will slide the
tool into the access tube.
2. Insert the Tube extraction tool into the access tube and tap the horizontal bar of the tool with a small
hammer. Tapping the horizontal bar of this tool will cause the halves of the cylinder to slide apart
and the tool will wedge itself to the inside walls of the access tube.
3. Assemble the Extraction tripod so that the steel cable is centred over the access tube, or position
another lifting device above the access tube.
4. Put on gloves and safety goggles.