andy1677 Posted April 16, 2014 Share Posted April 16, 2014 hi all got a bit of a strange problem. throttle servo is working intermitantly, steering works all ok. one minute working and next its not, checked all the wires and all ok, thought it might be a signal fault but steering works all ok. thought it was a battery problem, but gave a fresh charge, was working all ok, took it for a bash and no throttle servo again? any help appreciate thanks Quote Link to comment Share on other sites More sharing options...
atom3624 Posted April 16, 2014 Share Posted April 16, 2014 Is the servo horn mounted OK? Also, check the plug's in the Rx OK. Al. Quote Link to comment Share on other sites More sharing options...
andy1677 Posted April 16, 2014 Author Share Posted April 16, 2014 hi yes servo horn is mounted and tight, all plugs in rx are in securley, have even had the servo out and shook it while working the transmitter and nothing, next minute it decides to work again faultlessly, sometimes for a few seconds, sometimes for a couple of hours, then you go back, and nothing? Quote Link to comment Share on other sites More sharing options...
shdaxner Posted April 17, 2014 Share Posted April 17, 2014 I remember reading somewhere that using a screw that is too long in the servo horn can cause the servo to act weird, Is there any visible damage to the wires? or any play in the wires at either end? also, is it a waterproof servo or not? Quote Link to comment Share on other sites More sharing options...
Shudson Posted April 17, 2014 Share Posted April 17, 2014 Swap servo plugs over so you can determine whether problem is actually the servo, or something with the radio. This sort of problem seems to crop up quite often - easily resolved with a cheap (only a few pounds) servo tester. Checks servo and signal from receiver. Quote Link to comment Share on other sites More sharing options...
Anthoop Posted April 17, 2014 Share Posted April 17, 2014 Swap servo plugs over so you can determine whether problem is actually the servo, or something with the radio. Yes..by process of elimination..trace the fault.. Quote Link to comment Share on other sites More sharing options...
andy1677 Posted April 17, 2014 Author Share Posted April 17, 2014 hi have been to the local hobby shop butthey dont sell servo testers, can anyone reckomend a semi decent (cheap lol) high torque one, its to fit a hyper 7 tq sports with the mach.28 had a look but theres bloody loads tia Quote Link to comment Share on other sites More sharing options...
HenryM Posted April 18, 2014 Share Posted April 18, 2014 I did this the other day and was really embarrassed when I realised it was the knob on the controller which limits the throttle Quote Link to comment Share on other sites More sharing options...
andy1677 Posted April 18, 2014 Author Share Posted April 18, 2014 hi have checked all the plugs and the wire to the servo, all plugged in ok and no visible signs of damage to the wire, have checked the controller etc all ok, its as though the throttle servo is not plugged in, just doesnt work. anyone in s****horpe with a servo tester??? any recomendations of a new throttle servo, has got a high torque steering servo, but standard throttle servo. had a look but there are a few and i dont know the difference in them. this means that after this has been replaced an if it still does it, has got the to be the receiver. thanks and sorry to be a pain Quote Link to comment Share on other sites More sharing options...
Anthoop Posted April 18, 2014 Share Posted April 18, 2014 As already said "Swap servo plugs over so you can determine whether problem is actually the servo, or something with the radio." So each servo plugs into the receiver...swap the plugs....now when you use the transmitter the steering will operate the throttle servo if it works...then you know if you need a new servo or there is another problem. If you do need a new servo then these are cheap metal geared- http://www.modelsport.co.uk/alturn-usa-high-performance-race-servo-high-torque-/rc-car-products/359784 Quote Link to comment Share on other sites More sharing options...
andy1677 Posted April 23, 2014 Author Share Posted April 23, 2014 hi traced it to be a break in one of the wires from the throttle servo, got the one which anthoop recomended and all is well thanks alot for the help, really appreciated Quote Link to comment Share on other sites More sharing options...
HenryM Posted April 25, 2014 Share Posted April 25, 2014 my power box thing where the switch is had some bad soldering so the power was intermittent and the wire would only work when it was in contact with the thingy. Could it be a job for the souldering iron? Quote Link to comment Share on other sites More sharing options...
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