Rope wrench zk1 issue

Raven27

Raven27

Participating member
Location
Pittsfield, Ma
I was given a ZK1 and I in turn gave it to my partner to learn to club on.....it sucks. It won't let him descend for shit. Opened it wide, changed corsage type and length, but thats not the issue. The cord slide fine, the wrench bends so dramatically that he essentially has to jerk the thing of to do 6" short descents over and over again. I know he's done with it and I have a runner so I'm not using it. What give?? Is the tether too long?
 
Does he set the wrench before sitting back in to his saddle? When you don't manually set the wrench or if the wrench is floppy on the stiffy and sit back all your weight is on the hitch itself. This will cause the hitch to bind up tight (the reason a hitch alone won't work on a single line.)
The new zk2 doesn't have this issue as much as the zk1 due to the tapered in design.
 
@evo; Thanks for mentioning this about the ZK-2. I've only ever owned the ZK-1, and was wondering if they performed very much differently from one another. You are the first person I've ever seen mention the "tapered in design" causing a difference in performance.

Please forgive my ignorance, but what exactly do you mean by that phrase, anyway? I guess I need to take a look at some sharp photos of the two side by side.

It would also be really cool if @treebing could comment on the differences between the two.

Thanks a lot, in advance, for any comments you both care to make.

Tim
 
He's used it both srt and drt, and both bind bad, the hitch never has any issue, it's the wrench not letting him down and I re watched the instructional video and everything appears the same, it must have something to do with the rope.
 
The zk2 has a stiff tether that has a spring like action that engages the wrench with less involvement from the climber. It can be done with the zk1 but it is a bit more cumbersome because of the lack of taper.
 
It's not operator error and not pitch. I've watched him and I can't figure it out. I also never climbed in it. I'll have to make a video. When he let's off the hitch, he just sits there, no movement, how's that his fault?
 
I used the zk1 a couple of weeks ago with a lightweight (my son, maybe 140lbs) and all good. The bollard was fully open, stiff tether (hand set) though on a very static 11mm kernmantle.

I was thinking maybe it was accidentally upside down, but that would be no so good. Perhaps the bollard was not straight and really tight. I can set mine so tight I can't move on it just pulling down hard in the garage.
 
He gave up on it, went to the HH2 I had, much more success. The hitch wasn't binding with the wrench. That moved down fine. He could take all the slack out of the hitch and still wouldn't move
 
Raven27 said:
He gave up on it, went to the HH2 I had, much more success. The hitch wasn't binding with the wrench. That moved down fine. He could take all the slack out of the hitch and still wouldn't move
Click to expand...
Hitch hiker is cool. Nuthin beats a bdoggbone.imho! I'm sorry that's not even a fair comparison ..a hitch to a mechanical muticender extraordinare
 
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