Crimping the D580 connector pins. I use a fairly expensive crimper made for theses pins. I've included a sample crimp to show what a good crimp should look like and a couple of extra pins and to practice on. The crimp needs to be made fairly close to this for proper seating of the pin in the connector body. The wire crimp can be made with a GC/Waldon crimper using the B opening. If there is any question of the crimp quality, add a little solder to the connection. Be sure the solder doesn't flow back into the front of the pin and doesn't have any protrusions. The seal crimp should be round. I've done this crimp with long nose pliers by carefully rolling the tabs around the seal. Also, sometimes when crimping, the pin gets bent a little. It must be straight to fit into the opening properly. I hold the center of the pin just in front of the wire crimp and push on the crimp area with my finger to straighten it. When pushing the pin into the socket, push on the seal rather than pushing on the wire. Otherwise, the seal will sometimes slip out of the crimp. Use white seals for wire dia. of 0.063 (1.60) to 0.085 (2.15) in (mm) Use red seals for wire diameters of 0.080 (2.03) to 0.112 ( 2.85) in (mm)