Tightening Hayn Hi-mods

[Ryan]

For those of you who have experience with Hayn Hi-mod swageless terminals, how tight do you tighten the fitting on final assembly? Hayn has told me "hand tight and a quarter turn with a wrench" and I have also heard tighten them "until you grunt". These seem like two very different levels of tightness. I have assembled mine with hand tight and a half wrench turn but am wondering if I need to go back and tighten them more. They are of the 5/32" and 3/16" sizes. Does anyone have any advice? Thanks in advance.

Ryan

[Brion Toss]

Hi there,
Any of these types of terminals work by compressing the core and cover against each other and, usually, a wedge. Therefore you need to exert some force when assembling. But it doesn't take much, and if you apply too much you are just adding needless load to the terminal. I don't know of any torque-wrench-applicable numbers here, but I can tell you that "hand tight and a quarter turn more" is a pretty vivid, accurate way to put it. When you are assembling, if all is together correctly, you will feel a constant light resistance as you tighten, and then suddenly hit a wall That's hand tight. A bit more and you are done.
The size of the wire definitely changes the nature of the wall, but the sizes you are talking about don't take much force at all.
Fair leads,
Brion Toss