rparigor(at)SUFFOLK.LIB.N
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 Posted: Sat Dec 27, 2008 8:42 pm Post subject: Anything wrong with using a plier style crimper? |
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I rounded up some ratcheting style crimping tools from airport folk and a homebuilder for crimping Red crimp on connectors from Stein (fast on and ring).Got hold of a Paladin tool with several sets of dies, and some no name non adjustable tool.The die sets for the Paladine:****Part number said for insulated terminals and had 3 colored dots including red****There was a set of dies with no part number but fit tool (perhaps from Stein??) and looked like for insulated terminalsAnd a few others, one for uninsulated terminals and otherFirst off no matter what the adjustment, if using 22 gauge wire, even with the dies completely bottomed, could not get as much a grip as i would like. I could semi make it better by splicing more wire and doubling it over to better fill hole. Problem was it still did not crimp wire terrific and the portion that was to crimp on the insulation for strain relief was too far away (too wide a die?) where it was only partially catching the metal in the terminals. All the terminals from Stein and Terminal Town and Mcmaster (double metal) appeared to be too short for tool. I tried all the dies I had and combinations. Not great success with the no name tool with fixed dies and is non adjustable.I could get an OK crimp, probably will work and with heat shrink support will probably be OK, but insulation was not captured properly and if i sliced open the crimp on the wire, you could see it is not as compact as would be nice.Then I pulled out an old and rusty Whitaker WC2850 tool, looks like a pair of pliers with several dies on it.After some practice I can make what I think is a very nice crimp, far better than what I could do with the other tools.*First I stripped twice what I need and double up tail to go into terminal*Then crimp with RARB die about 1/16" from the edge of terminal*Then use a part of tool called "A" which is kind of a half cylinder (feel here is important) and put a dimple on top of terminal where I just crimped. I tried to over crimp this step and if I go crazy where terminal in stead of being straight begins to bend, I can tear wire when pulled very hard because wire is mashed too much. I am pretty confident can repeat this dimple consistently. When I sliced practice terminals apart had a very compacted crimp without strands being deformed/mashed. Without dimple, crimp is acceptable in my mind for automobiles only, and places easy to get at with no moisture present.*Then use RARB to crimp wire insulation about 1/16" from edge, no hurting of insulation at all and wire is held pretty good.Anyone see any problems crimping like I describe? i could have stripped and crimped a dozen terminals in time it took me to write this.Ron Parigoris [quote][b]
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