Hello, and welcome to ECF!
First of all, if the Homh Wrecker is a regulated mod, which I believe it is, then the only "maintenance" you have to do, is keep the tank/dripper finger tight, no need to pop a vein cranking a tank on the mod and keeping the 510-connector clean, as many have stated.
For mechanical mods, like a tube mod, caravela for example, the maintenance routine is way more complex. You have to clean all contacts, clean threads, disassemble the button, clean locking ring and button, then possibly polish it.
Mostly: Just keep the 510-connector clean and free of dirt/juice. Secondly, don't crank the tanks/drippers you put on the mod so tight that you might pop a vein, finger tight is enough.
