According to the Standard Wire Practices Manual this 59973-1 tool can be used to make indent type 'W' crimps on gauge 8 to gauge 4/0 cable provided that u have the proper nests and indentors.
Here are some partnumbers of the nests and indentors for large high temperature resistant BACT12M terminals.
gauge 8: nest 48126, indentor 48355
gauge 6: nest 48128, indentor 48127
gauge 4: nest 48129, indentor 48127
gauge 2: nest 48130, indentor 48127
gauge 1/0: nest 48132, indentor 48131
gauge 2/0: nest 48133, indentor 48131
gauge 3/0: nest 48134, indentor 48131
gauge 4/0: nest 300430, indentor 48131
Like I've mentioned, these tools make indentor type 'W' crimps.
Let's say that a gauge 1/0 cable needs to be crimped onto a terminal.
First we would need to know the type of terminal that we are going to need so we go to the wire list of the wire that needs to be crimped into the terminal.
I work on 737's and this aircraft type does not use gauge 1/0 wiring but for the purpose of this demonstration, here's a look at a wiring diagram of some gauge 6 cables connecting to a engine generator.
The wire bundle W200 with gauge 6 cables 451, 452 and 453 connect to terminals T1, T2 and T3 on the generator.
When we look at the wire list for this wire bundle we can gather the following information.
Note that the wire type code and the length are also mentioned, if we needed to replace a piece of the cable or the whole cable we can find the partnumber of the cable from the SWPM with the wire type code and we know what length to order up.
Let's make wire 451 the wire that we want to crimp and the aircraft effectivity 001.
We look closer at the wiring list and find that the terminal type for this crimp is type 'R'.
Now here's the part that u need to know, the type code of terminals are not listed in the Standard Wire Practices Manual but in the Wiring Diagram itself.
They are found in the front matter, then go to introduction and then under codes.
When we open the codes chapter we can look up the code for the terminal that we want to crimp. In our case we learn that we need a BACT12M with a 3/8 lug. We can find the full partnumber in the SWPM later.
At this time I switch over to the gauge 1/0 size cable and terminal. For the demonstration this doesn't make any difference, offcourse on a aircraft u use the correct wire size and terminal size for the job but I want to show a larger size crimp.
In the Standard Wire Practices Manual u can use the cross reference section to look for the BACT12M to find the chapter that we need but I know that the chapter for insulated and uninsulated terminals is 20-30-11.
In this chapter we find the high temperature resistant BACT12M type terminals and we go for the gauge 1 terminals. Let's keep the 3/8 size for now and here we have the full partnumber of the terminal.
I take some high temperature resistant gauge 1 cable but it needs some trimming. I use a ratchet type cable cutter to do this.
The cable cutter cuts large cables fairly straight very quick.
This is the cut cable.
Now, I know from the SWPM that we need the nest 48132 and indentor 48131 for a gauge 1 cable. To remove the nest and indentor from this tool we use allen key's (that are usually placed in the kit).
I put the nest 48132 and indentor 48131 into the head.
The cable is stripped with a sharp knife.
Inserted into the BACT12M25-3.
And then crimped.
And here is the finished crimp.
The SWPM also states that this type of terminal can also be crimped on a wire using the hex type crimp.
We have the 13642M thomas and betts hydraulic crimphead in store with a proper power pump also, this tool is also selectable from the list on the left.