Why do my servos keep frying?
#31
Slayyer Had a losi and came over and asked if i had a servo horn for his hi-tec, I centered the servo and put on a new horn. the next thing i know is smoke came out of the servo.... he did not have the end points set properly and the servo horn I put on there was not gonna strip out like the other one he had, so it let the smoke out of the wires....I've never been able to put the smoke back in.Poof! Moral of the story never smoke your friends stuff ....always bring your own smoke!
#32
Servo mounted too low: side pod smacks bottom of servo, cut relief in pod and lift servo (like Xray's BOB)
Radio tray twist: servos don't like haveing their cases twisted, the bolts holding a servo together, hold it compressed together but cannot control weird twisting forces. Upgrade to a carbon fibre radio tray.
No rubber blocks under the servos, or useing rubber blocks but the servo srcrews were tightened too much: Leads to Vibration issues, rubber blocks can prevent some twisting and extra shock just like a servo saver does for the front. I run my servo screws loose enough so that when full brake is applied the rubber blocks will squish a little and the servo may lean in.
Crappy JR servos: Get a Hitec 7955, get a carbon fibre radio tray to mount them properly to first.
Cheese sauce: Losi drivers love buying the tracks Nachos. Cheese sauce slips past the oring on the servo output shaft quicker than penetrating oil and rots your servo bearings. Don't eat over your car. Or at least put the body on first so your lunch will look like a cool paint scheme.
#34
Tech Lord
iTrader: (148)
I love the fancy JR stuff. I even threw the new high volt series in my buggy and truggy. Their add says "NO MORE DNF's" and they come with a price tag to go with that. I have gone through many 9100s servos this year, JR has always replaced them but it has been a hassle. The bottom line is 3 race days and one of the fancy 9100 HVS servos was done. All endpoint adjustments were good. It seems to be a problem with cars that run alot of brake. I was so frustrated that after the $200 no more DNF's servo fried I pulled them all and sold them at a huge discount. They do look pretty but come on 3 race days. JR has to be delusional to demand such a pretty penny for their flagship servo and thenafter a max of 3 hours on the servo done. I am trying the hitec high volt series now, tomorrow is the 1st race, hopefully hitec will prove itself again. I am very disappointed with the current QC of JR and other companies but when you double the price of a servo and then it does not do any better than a servo that costs 1/2, thats not making any new loyal customers.
#35
the servos i run on my eight 1.0 b i use 4 rubber sims the ones that come with the servo on my throttle servo and my steering servo i do have a king headz radio tray stiffer thank god for that it helps,i just tigthen the servo screws intil there snug thats it i think that should be fine no problems so far