Hitec servo issue?
#2
Makes noise lock to lock? Ck your EPA. Noise at neutral? Steering Bind, Linkage or knuckles.
#4
Disassemble servo, clean gear and relube. Grease probably harden. If that doesn't work, purchase new servo or upgrade. Still noisy when you remove the Horn?
Last edited by Geezatec; 05-11-2016 at 11:00 PM.
#7
Tech Regular
iTrader: (1)
1. What servo model is it?
2. Are both servos doing the same thing? I ask this because to have 2 servos "fail" in the same manner is very unlikely, which would then lead us to look more in to the installation and powering of the servo.
3. What are you powering the servo with?
#8
It sounds like you have digital servos, which will make a digital buzzing sound due to the circuit always trying to maintain position. A couple of questions to help us help you.
1. What servo model is it?
965 mg
645mg
945 mg
2. Are both servos doing the same thing? Yes. I ask this because to have 2 servos "fail" in the same manner is very unlikely, which would then lead us to look more in to the installation and powering of the servo.
3. What are you powering the servo with?
1. What servo model is it?
965 mg
645mg
945 mg
2. Are both servos doing the same thing? Yes. I ask this because to have 2 servos "fail" in the same manner is very unlikely, which would then lead us to look more in to the installation and powering of the servo.
3. What are you powering the servo with?
#11
Tech Regular
iTrader: (1)
Ok, we have a little more information to work with. All three servos that you mention are analog servos, so the noise you are hearing would be more of a growling noise than a digital buzz. Analog servos will only ever growl when there is a constant load on the servo. You will want to remove the horn from the servo and check the steering linkage on your truck and make sure that it is free from binding. Keep in mind, that because the vehicle is a crawler, there will be a load on the servo while driving, so expect some noise, and a little bit of heat build up due to the load and the fact that there is very little air flow on the servo.
#12
Ok, we have a little more information to work with. All three servos that you mention are analog servos, so the noise you are hearing would be more of a growling noise than a digital buzz. Analog servos will only ever growl when there is a constant load on the servo. You will want to remove the horn from the servo and check the steering linkage on your truck and make sure that it is free from binding. Keep in mind, that because the vehicle is a crawler, there will be a load on the servo while driving, so expect some noise, and a little bit of heat build up due to the load and the fact that there is very little air flow on the servo.
#14
Thanks! So I tried a different receiver switched it to analog and the 965 seemed to work with no humming under load and no load. The 945 still hummed but if I turned it to full left and right and then held it then let it return to center it would stop briefly. And the same with the 645. Someone had mentioned the grease hardening would this be the culprit and a break down of each and relube possibly remedy the problem?
#15
Tech Regular
iTrader: (1)
Thanks! So I tried a different receiver switched it to analog and the 965 seemed to work with no humming under load and no load. The 945 still hummed but if I turned it to full left and right and then held it then let it return to center it would stop briefly. And the same with the 645. Someone had mentioned the grease hardening would this be the culprit and a break down of each and relube possibly remedy the problem?