Quote:
Originally Posted by kullwarrior
Systema PTW: (McGuyver you need to help me with this, I’m not extreme fluent with PTW)
Most three common problems are electronic board failure, gears, and motor. Electronic board usually are damaged by moisture, this is fixed by a moisture proof mod, if the electronic board are damage one can face with $80-$200 replacement bill. Planetary and Sector gear are also prone to damage, however, this is usually happen if one uses Li-Po battery with low velocity cylinder causing insane velocity the cost of repair can be from $50-$150. An example of Li-Po on PTW’s ROF can be shown by a 9.6 Systema battery on M110 usually produces around 850-900rpm; an 11.1V firefox battery on M110 produces 1100-1300rpm. Finally the motor failure is a design flaw known amongst PTW community it usually happens to a unmolded motor with high round count 10k+. This can be fixed by a motormod or rewinding. Cost of preventing is around $75, and cost of replacing a motor is around $150.
In General, PTW aren’t prone to problems, but when it does, the bill is not small. One can prevent these problems by doing the motor mod by ptw doc and avoid experimenting the ptw.
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Ask and ye shall receive:
The PTW planetray gears are the toughest gears in all of airsoft. I have never seen one break. The Gen 1 planetarys were steel, and so were the Gen 3+. The issue is really with the sector gear and the speed of the sector gear impacting the rack gear if dimwits use an 11.1v lipo and an M90 or M110. Systema did not recommend using more than the 9.6V with loads from M90-M130, so guess what happens when you use 11.1V on the M90? You break the first tooth off the sector gear and perhaps marr up the teeth on the cylinder rack gear. This is not a "lipo" problem or an application problem, it is a dumbass-not-using-the-correct-battery problem. Also, expecting you mags to feed 0.28g BBs at this speed is a little optimistic, and likely you will be chopping some BBs.
Motor problems are the result in poor manufacturing. Systema had a really good manufacturer for the 480 motor, but they went out of business and Systema had to bring the 490 to market quickly with a new manufacturer. It had problems, but in about 90% of cases, the motors were repairable. Currently, there is a new motor done by Tackleberry that uses a rewound armature and employs all the current updates, with pretty much a zero failure rate (or as much as can be expected). Some motors got 10s of thousands of rounds before they died, some died within a day. Out of the dozens of motors I did, only 4 were unrepairable and Systema USA sent me replacement armatures for those, so nobody had to do without.
Moisture was never a problem for me, and there are easy moitrue proffing means, from spraying the EL-001 main and EL-002 selector board to putting a thin layer of grease at the receiver joints. Some guys on the west coast play regularily in the rain.
I still wouldn't swim with a PTW, but I wouldn't do it with a real gun either.