CHAPTER 22 ■ SOLDERING AND CONNECTING
- Repeat the process to add terminals to all four wires on the pair of motors.
- Insert the terminals into the housing with the loop facing the polarizing
ribs (see Figure 22-18).
Figure 22-18. Terminal being inserted into KK housing
- On the underside of the terminal is a tiny piece of metal bent outward, (not the
big loop, but the fragment on the reverse side) called a locking tang. The tang
snaps into an open window at the bottom of the housing. You’ll hear a click when
the terminal has been pushed all the way in, and the entire tang will be viewable
in the housing’s window.
Until the tang is completely visible, the terminal isn’t fully seated in the housing. You can tug on the
wire and pull it out. Without the locking tang in place against the housing window’s shelf, the terminal and
wire would be pushed out when the housing is connected to the header on the circuit board.
What happens if you discover you’ve accidentally inserted the wired terminals in a different
arrangement than you soldered the header on your circuit board? With a tiny screwdriver, you can push
against the tang in the window of the housing while simultaneously pulling on the wire (see Figure 22-19).
The terminal and wire will slide back out. Afterwards, you’ll need to bend the tang outward again in order for
it to lock back in the housing.