Turbo9000

iTrader: (5)

I used this servo on the throttle/brake end on an 1/8 buggy. The servo failed to return to the neutral position and instead fully opened the caruburetor. It ran into the boards pretty hard and broke both front control arms and bent the chassis and front shaft...so you can imagine how upset I was. I took the servo out of the wreck and noticed that when I turned on the RX the servo motor would run continuously with out any movement from the the servo arm. Initially I thought that the gears set was stripped, but I could'nt find one stripped gear when I opened it. What on earth happened to this thing? I wouldnt expect a high-dollar servo to fail this miserably...perhaps I did somthing wrong. Please help.

edit.. I thought it would also be important to add that I was useing a Venom failsafe at the time, would it be possible for the equipment not to be compatible?

Gary Fliegel

iTrader: (1)

Most failsafes aren't good to use on a digital servo. This happened to another person with a different brand of FS. I am going to drop a line to Venom and see if they have a compatibility issue with digitals. There was one local racer that kept forgetting to turn off his car after races and burnt up 4 servos that way(one was mine) Always set your failsafe to return to neutral, not hard brakes.

I would also recomend not using a digital in the T/B app. If your end points aren't spot on, you will burn up a servo quickly, reguardless of who makes them. 1/8th eats T/B servos quite often, its not the servos, just the app they are in.

Turbo9000

iTrader: (5)

Thanks Gary, Let me know about that Venom failsafe.

Gary NJ

iTrader: (8)

...I just bought a new 5625 to use as the T/B servo in a race TMaxx I'm putting together. Can you provide a little more detail as to why a digital isn't a good choice for this app? Would the non-digital 625 be a better choice here? TIA for any insight.

Gary

Gary Fliegel

iTrader: (1)

Digital servos are like Mod electric motors. If you aren't careful with the EPA's you can burn one up really quickly. Its like stalling a mod motor out, it can only handle it so many times. A analog servo is like a stock motor, it will be able to handle the abuse better. I would say 90 - 95% of failure in the T/B is due to incorrect EPA setting. Not saying you can't use a digital, its just more critical to get it set up right. For a Maxx, I would use a 645 servo. It has gobs of torque to stop that maxx. TTYL.


Gary

dylanj

iTrader: (2)

I work close with Venom and do some testing for them. I run the old big Venom failsafe in my 1/8th buggy (the reason for running the old one is, it has never failed) and the new smaller one in my gas truck. I run digital servos all around. Never have had an issue with my throttle servos, but my Hitec Digital servos I use for steering fail about every 2-3 months depending on use. It has become very frustrating to me. I have switched my steering servo to a different brand and for the last 4 months, no issues.
I have found that if there is even a slight amount of binding anywhere in the servo linkage, the Hitec will overheat and do what was stated above. In fact I have a 5925 and 5945 down right now. One of them I sent in last week, I will be sending the other in this week. Funny thing is both of these have started working intermittently as a steering servo in my B4 and T4!!! Low stress applications...

Hope this helps and hope you can help me with my issues.
Thanks
Dylan