Richdave,
We were calling our guides "Installations" because the end user was ''installing'' a new replacement component (as opposed to repairing the component itself), but you're right -- the word is not the best fit for that sort of procedure.
You're also correct that we should have descriptors for each of these guide types.
How about:
* '''Replacement''': The vast majority of our guides that show how to replace a particular component in a particular device. So instead of having a "Installing iPhone 5 Battery" guide, it'll change to a "iPhone 5 Battery Replacement" guide.
* '''Disassembly''' - Used to completely disassemble device, without any specific component in mind.
* ~~'''Installation'''~~ - Gets nixed. Even when you add RAM to a computer, chances are you're removing old RAM out of there, so that guide can fall under Replacement.
* '''Technique''' - As you said, a "tip/trick/shortcut, how to do a particular activity like soldering, measuring voltages etc."
* '''Maintenance''' - As you said, self explanatory -- keeping the device running buttery-smooth.
* '''Repair''' - As you said, "for things beyond board/module/motor removal - component level repairs, PCB repairs, SMD rework."
* '''Teardown''' - Also a complete disassembly of a device, but more fun and less procedural than Disassembly. Boring steps (like removing the 47th screw) are omitted, and you can link to lolcats and other fun stuff.
We're going mull this over internally, since we also have to figure out how hard it's going be to actually *change* all the Installation guides into something else.
But what do y'all think? Is good? Is terrible? I'd love feedback from all the regulars around here.