I have owned (and still do) a 2002 Gladiator (later upgraded to 2003 specs), a 2004 Gladiator, as well as a 2003 Conquest, and a few marker bits.
I may not own a Cyborg, but I've been using MacDev regulators before the Cyborg was introduced!
The 2002/3 Gladiator was actually very different from the 2004 style Gladiator found on the Cyborg, using a modified pin valve mechanism, rather than the gas-thru piston design that it currently uses. I guess that it deserves a mention in it's own right.
It is unusual in that it reverses the pin and piston arrangement, with the piston pressing down on the pin, which is mounted at the bottom of the reg. This places the spring tension adjustment towards the top of the reg, and the gas input at the bottom - again, the reverse of a normal pin valve controlled regulator: -
2002 Gladiator assembled.
First step in disassembly is to remove the end cap.
The plastic valve seat seal can then be pulled out of the end cap, releasing the valve pin and pin spring.
Switching to the regulator body, you can now look at the end of the cylinder and see the brass piston - this one has been modified to include a dimple to help keep the valve pin in alignment. The piston can be pulled out with a pair of pliers.
Removing the piston gives access to the piston spring. This can just be tipped out in to your hand.
Under the piston spring is a large ball bearing. This is part of the adjustment mechanism used to change the spring tension.
Finally, there is a second, smaller, ball bearing. It is this that presses against the larger bearing to place tension on the piston spring. The adjustment screw moves the smaller bearing in or out to move the larger bearing up or down, changing the spring tension.
To service, clean the reg cylinder, piston, piston spring and ball bearings. Grease the small bearing, and drop it in to the body, ensuring that it aligns with the adjustment screw. Grease the large ball bearing, and then drop this in to the cylinder, ensuring that the small bearing remains in place. Grease the piston spring and drop it in, followed by the greased piston.
Then drop the pin spring and pin in to the end cap (there is a depression for the spring to sit in) and then place the reg seat seal over the pin, and press it in to the end cap - keep the face of the seat seal as clean as possible. Then screw the end cap on to the reg body, and you're finished.