rc4wd excavator query

[osikasculptor]

Just wanted to mention this, I had a servo for the boom that before it went; seemed to be causing all kinds of odd stuff like tracks going backward cab turning until it stopped and I replaced it..now all fine.

[Cooper]

Originally Posted by osikasculptor

Just wanted to mention this, I had a servo for the boom that before it went; seemed to be causing all kinds of odd stuff like tracks going backward cab turning until it stopped and I replaced it..now all fine.

I had same problem with mine, two different times. Each time a servo went bad the rest of things went weird, pump motor revved up/down, tracks moved ect. Thought the radio had issues but found to be servo related both times. Tower pro servos in mine. I don't quite understand how the feedback from a servo could translate to radio, but it is a cheep (less expensive-fine for what it is) radio.