Recently the Promaster forum has become fascinated by the low price and outstanding preformance of the detonator. For good reason at that, it is a great product no doubt. However, it is unlike other regs and can be daunting to take apart. I have gotten several questions both here and on AIM about how to lube and maintain the reg, so I figured I'd post up for everyone to see:
What you need:
Lube (I am using Pus, aka dow33. You can use whatever is suitable for a reg.)
Cotton swabs (not shown)
3/32 allen key
5/64 allen key
~Remove the bottom part and adjuster ring by unscrewing the 3/32 grub screws and unscrewing/pulling them off.
~Use the 5/64 allen key to remove the grub screw under the adjustment ring. Then remove the brass internals by sliding them out.
~Unscrew the brass internals. A 3rd brass part should easily fall out. An oring and cupseal may also come out, make sure not to lose these. Mind did not come out, so they are not shown.
~Take the C-clip wrench and (who'd have guessed it?) remove the c-clip from the top.
~Push the piston and spring out of the top of the regulator by sticking a pencil through the bottom.
~Clean everything using the rag and cotton swabs.
~Put the internals back together, make sure that it all goes in the right way.
~Put the bottom half back together. Just slide the brass internals back in, and screw the holder on so it will still swivel, but not slide back out. Then screw on the adjuster ring, all the way. This will set the reg to ~100psi, you can tune it later. Remember to attach the bottom portion too, and don't forget to clamp the adjuster ring down.
~Lube the plunger. Make sure to get the stem covered in a thin coat of lube too.
~Put the spring and plunger back in. Now put the c-clip back in. Congrats you are done!
If you screw up and break something, blame Jesus. Or yourself, whoever, as long as it isn't me.