Passing knots (ascent & descent mode)

Descent — knot in working rope

1. Descend until the knot is approx. 50 mm from the entry point into the descender device. This effectively locks the descender. Ensure the back-up device is high up on the safety rope.
2. Attach the handled ascender to the working rope above the descender. Stand in the foot loop and attach the chest ascender above the descender.
3. Remove the descender and replace it on the working rope below the knot. Lock off the descender.
4. Progress downwards on the ascenders (reverse prussik), moving the back-up device down as you descend, until the chest ascender is just above the knot.
5. Standing in the foot loop, remove the chest ascender and sit back on the descender.
6. Remove the handled ascender and continue to descend.

Descent — knot in safety rope

1. Descend until just below the knot and lock off the descender.
2. Attach 2nd back-up high above the knot.
3. Remove the original back-up device and re-attach it below the knot.
4. Remove the 2nd back-up, unlock the descender and continue to descend.

Ascent — knot in safety rope

Carry out the descent (knot in safety rope) procedure in reverse.

Ascent — knot in working rope

1. Ascend the ropes until just below the knot, ensuring the back-up device is placed high up on the safety rope.
2. Remove the handled ascender and replace it on the working rope above the knot.
3. Step up a little to bring the chest ascender to just below the knot, and attach the descender below the knot.
4. In one movement, stand up in the foot loop, remove the chest ascender and replace it above the knot.
5. Remove the cow's tail from the loop of the knot and continue to ascend.