Open up the blaster:

here are the guts without the case:

the PC's, Water tank, and pressure Gauge are easily removable:

so is the pump:

to disassemble a Max-D6000, first, undo all the screws and make sure not to lose them. remember which ones go in which holes, because there are 2 different sizes. the little hole between the PC's is not a screw, it's a metal peg. to get it out, you have to cut along the seam at the top of the blaster right in between the PC's with a craft knife and wedge the two halves apart. the peg will stay stuck in one side. next, take the same craft knife and stick it under the round orange thing that holds the pump in. wedge it with the craft knife until you can get a table knife or screwdriver under there, and pry it off. don't bother with vice-grips or anything like that, just pry it off. now that you've done that, your blaster is open. now mod it, fix it, photograph it, whatever.when you're done, just make sure the tubes and things are snug in the case, put the screws back, push the metakl peg back, and bang the orange pump ring back into place. now your gun is back together.