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  #1  
Old 05-19-2021, 08:53 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,597
Default Hydraulic Crimper

What did you use to crimp terminals on the big power and ground wires?
I know some don't care for Harbor Fright but this looks like it's the right size.
I need #6 through #2.
https://www.harborfreight.com/hydrau...ool-66150.html
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Estes Park, CO
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
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  #2  
Old 05-19-2021, 08:59 PM
jrs14855 jrs14855 is offline
 
Join Date: Apr 2008
Location: Lake Havasu City AZ
Posts: 2,576
Default Crimper

I used that on the #2 cables, very happy with the results.
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  #3  
Old 05-19-2021, 09:20 PM
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GeoffP GeoffP is offline
 
Join Date: Sep 2018
Location: NSW, Australia
Posts: 211
Default

I've got an identical looking unit sourced here in OZ. Works a treat, and comes with a big range of dies. So long as the die is the right size for the cable/lug, it's hard to go wrong.
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  #4  
Old 05-19-2021, 09:26 PM
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KiloWhiskey1 KiloWhiskey1 is offline
 
Join Date: Mar 2006
Location: Kennesaw, GA
Posts: 237
Default

I own this exact unit and it works perfectly. The crimps look good and the dies donít cut into connectors.

Quote:
Originally Posted by wirejock View Post
What did you use to crimp terminals on the big power and ground wires?
I know some don't care for Harbor Fright but this looks like it's the right size.
I need #6 through #2.
https://www.harborfreight.com/hydrau...ool-66150.html
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Current: RV-10 N253RV, RV-3 N235RV, Panther build progress
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  #5  
Old 05-19-2021, 10:14 PM
spark68 spark68 is offline
 
Join Date: Apr 2013
Location: Lk Havasu City, AZ
Posts: 195
Default

I have the HF unit referenced and like it. Only used it for #8 terminals so far, and some non-aviation jobs that turned out well. I find that the die numbers don't match the terminals I've used, so I pick what looks right. IE #8 die looks too small for the #8 terminal. I've used other big crimpers before in a previous life, so I have an idea what I'm looking for in a good crimp.
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  #6  
Old 05-19-2021, 10:22 PM
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jcarne jcarne is offline
 
Join Date: Jul 2016
Location: Worland, Wyoming
Posts: 1,906
Default

That crimp kit won't work for the biggies, ask me how I know. The dies say they are labeled for the big wire sizes but they are waaaaaay off (too small). If you search the forums you will find others that found the same. I don't know how it works for some but not others, perhaps they used a different brand? This is what I used. It works beautifully for all of the bigger wires in the bird. Just gave it a nice smack or two with a big arse hammer.

Here is a pic of what the crimp looks like on a 2awg welding wire. These were all followed up with some adhesive shrink wrap too.
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Last edited by jcarne : 05-19-2021 at 10:26 PM.
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  #7  
Old 05-19-2021, 11:34 PM
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PaulvS PaulvS is offline
 
Join Date: Aug 2019
Location: Western Australia
Posts: 705
Default Buying a tool?

Are there really enough heavy cables to terminate that require buying a tool, versus taking the parts to an auto electrician for crimping? Just curious, not criticizing. I'm not yet at the stage of needing to do any wiring yet so don't have any first-hand experience.
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  #8  
Old 05-20-2021, 04:01 AM
bobnoffs bobnoffs is offline
 
Join Date: Jul 2012
Location: n. wi
Posts: 846
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if you don't buy a tool you will waste a lot of time. i bet no one crimped the wire lugs and that was the end of it. i changed things and redid a lot. gas is 3 bucks, time is priceless and 2 trips to the repair shop if they are busy doubles the reason i got a tool.
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  #9  
Old 05-20-2021, 04:13 AM
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rmartingt rmartingt is offline
 
Join Date: Nov 2006
Location: Savannah, GA
Posts: 1,121
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I have many 2 and 6 gauge wires (dual bus system) and use this for crimping those: https://www.amazon.com/dp/B00ZA2P3XM/

It's very nice being able to do it right there in place and I've already redone a couple things as I've progressed. I've also used it on my car (had a battery terminal break).
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  #10  
Old 05-20-2021, 04:39 AM
tgmillso tgmillso is offline
 
Join Date: Nov 2012
Location: Launceston, Tasmania, Australia
Posts: 837
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If you just want a ratcheting crimper, there is one from available from an online experimental avionics supply store (not sure if I am able to mention their name due to the whole sponsorship thing, but rhymes with "pine"). It has sizes 8AWG through 2AWG, it's less expensive that the other options discussed and doesn't come with a bunch of dies to lose as it is just a typical ratchet style. Does a great job.

Tom.
RV-7
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