Spiderjack not descending correctly

S

sevylevy

Location
NH
Hi.
I am new to mechanical devices. I have a spiderjack 2.1 and have it set up with Yale blaze 11mm. When I have my weight on it, I have to yard on the release to get the cam to unlock. I weigh 165 lbs. I was told by sherrill tree that the rope might need to be "milked". I tried milking some of the kermantle down, but I did not get much.
From videos I have seen, the descending motion should be much smoother. I really have to reef on the release to get the cam to move. Does not seem correct. The device is like new as well.
I would appreciate any insight anyone has.
Thanks
 
Are you using the thumb brake in conjunction with the release handle? My SJ is really touchy on ANY rope. Very little pressure is required to descend.
Are you using some kind of friction saving device? If not that could be an issue as well.
 
Hi.
No, just the spider jack.. I have to pull down really hard on the release to get the sj to open the cam and thus descend. It's like the line is jamming.
I am not able to coordinate a smooth descend with the wooden block because I am concentrating so hard on getting the cam to release.
So you dont think its the line?
 
Can you explain your setup? Have you only attempted to climb on the system one time? I think friction at the TIP is the culprit. I used poison ivy, which is 11.7mm I do believe, when my SJ was new with absolutely no problems.
 
The spiderjack can be used with 11-13mm. It's not the lock jack.
I was curious if the rope, being new, needed to be milked. But it does not seem to be the case.
 
with the spiderjack there is only one size clutch, for lines 11-13 mm, and with your line being on the thinner end of the capacity, would lead one to thing your SJ would be more sensitive as opposed to a 13mm line.

(yes a very elementary question) but is it all set up right? line goes in and out the right way, the cam oriented the right way... maybe post a picture of it.

if it is set up right, i cant imagine any other problem unless you have alot of friction elsewhere in your climbing system.
 
Thanks.
Yes only one logical way to set it up really. I sent images to sherrill. Looked ok to them. Hmmm. Didn't the cam come already installed.
I
 
If the crotch your rope passes through is tight the rope is making friction at that point. If the rope has a hard time moving freely through the TIP the cam will be more difficult to disengage. You'll find yourself really having to put tons of weight on your system just to get the rope moving.
 
I will set it up again over a limb where friction should not be an issue.
My intuition is TIP is n the issue. But I am a greenhorn.
 
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