Applies to:

Replacing the Flex Tube

To avoid electrical shock or property damage, move the power switch to OFF and disconnect power.

Flex tubes carry hot oil under pressure. When installing new flex tubes, follow the listed guidelines to prevent failures of the new flex tube. When bending the flex tube do not:

  • Bend smaller than a golf ball in radius.

  • Bend more than 3 times in the same area of tube.

  • Bend the flex tube within 4 finger widths of the end fittings.

Discard any tube bent more than 3 times in the same area of tube.

When torquing, hold the brass fitting that the flex tube is being torqued onto, to avoid twisting of the flex tube.

  1. Notice the routing of the old flex tube before removal.

  2. Use two adjustable wrenches to loosen the brass fitting and remove the flex tube. One wrench holds the flex tube fitting and the other holds the attaching fitting.

  3. Use the old flex tube as a template to rough bend the new tube.

  4. Install the new flex tube by torquing finger tight, and then turning (torque) an additional 1/4 turn.