The version 1 gearbox is the first AEG gearbox ever released. Almost exclusive to the Tokyo Marui FA-MAS, the version 1 gearbox is an antique, though NOT a pushover. In my opinion it is the easiest gearbox to work on and a great platform for a beginning airsmith to start on.
I assume you can get the gearbox out yourself, so I'll skip the FA-MAS disassembly and move straight to the gearbox guide. (FA-MAS disassembly can be found here: http://www.arniesair...e...7&hl=carson)
The version 1 gearbox is a bulky beast, designed for the FA-MAS the engineers had plenty of room to play around with.
Newer models of the TM FA-MAS come with a "high torque" version of the eg560 which was a weak motor to begin with. The new motor can pull an M120 (albeit with a lower rof) and I've been told it can pull upwards of an M140 (with a larger battery) BUT a custom machined anti-reversal latch will be required and it'd be a good idea to rewire.
To begin dissembly of the gearbox you must first remove the motor tabs on either side of the motor. First you must unbend the metal tab located in the notch on the left side of the back of the gearbox shell.
Then you simply pull out both tabs with a pair of needle nose pliers.
Once the tabs are out, remove all the screws holding the two halves together. You will need a torque screw driver.
Edited by D0096F, 05 October 2008 - 12:55 AM.