I started a thread a few months ago about the ATN mast
climber after I had a near failure...
Background--- Yesterday before climbing the mast
I did my normal safety
check of the Mast Climber. I have worked around safety gear
for most of my life and while not perfect, if my life depends on some gear
I am rather anal about the gear check. Pre-climb the gear checked fine.
Problem--- When I got down and did the post-climb gear check I realized how lucky I was. The mast climber I use has two shackles that join each ascender to the straps that hold user. The shackles used have a straight pin that is held in place SOLELY by a round cotter pin. During the climb, the repetitive motion of ascending and descending caused the retaining cotter pin to come out. Had the pin fallen out, I would have lost
the lower strap and my footing. While the lost
of footing would have resulted in a more challenging descent, separation of the shackle that holds the seat, would probably have resulted in the user denting the deck
and perhaps damaging the deck's (and my) core
Solution-- replaced the circular cotter pins with straight ones. As part of the pre-climb safety check wrap them with sail tape to prevent chaffing, as part of the post-climb remove the tape.
With this small mod, I am very comfortable with the gear.