|12-24-2004, 01:40 PM||#1|
RCC Master Contributor
I am: Peter M.
Join Date: Feb 2003
Location: North Bay, ON
Radio of choice:
# of RCs: 37
Feedback: 3 / 100%
Total Props: 15
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At this time of the year I like to pull all the equipment from my aircraft and check and clean it, including the engines. My servo maintenance includes a good inspection of the servo leads for cracks and wear, check and clean the connectors, ensure that the screws holding the servos arms to the post are tight and not stripped and check the servo mounting lugs for cracks. Is there anything more that should be done? Does anyone ever take apart the servo cases to check inside? What could be checked? I'd like to hear from others to learn what they do.
Wishing all a happy holiday period
Murphy was an optimist; fly safe and have fun.
|12-24-2004, 02:42 PM||#2|
RCC Supreme Contributor
I am: Gary M.
Join Date: Jul 2003
Location: Stoney Creek, Ontario
Radio of choice:
# of RCs: 7
Feedback: 25 / 100%
Total Props: 9
You seem to have everything pretty well under control and your maintenance is perfect and to be commended. Very few would put that much effort into their radio gear, ie: servos!
I would only proceed to check the servo any further IF there is a definite problem like servo gittering etc. If you suspect a problem and have the means to use a servo checker/programer, then check out the servo for travel, centering, speed etc. If it reports a problem, then AND ONLY THEN consider taking the servo apart for further inspection.
In the rare event that you do have one of these problems with a servo, and depending on whether or not you feel comfortable doing the work yourself, what I do is carefully remove the bottom of the case exposing the P.O.T. and use a good quality electronics spray contact cleaner and give the inside of the P.O.T. a shot of the cleaner. You should find a small opening or slot on the case of the P.O.T. where you can apply this. This usually cleans out any residue inside and stops the gittering and sloppy centering! Reassemble and test it out again!
If the servo was jumping and skipping, while you have it apart, then I would also carefully check the top end and inspect the gears carefully for missing teeth or foreign objects stuck in the teeth.
Other than that being necessary, I repeat, DO NOT take your servo apart! You would just be giving yourself unnecessary work and take a chance on breaking or losing parts etc.
Depending on the age of your radio Tx, over 2 years old, I would probably send it in for an inspection and retuning if necessary to have the peace of mind that all is well and operating safely! This too, depends on your usuage of the radio and is a personal call! I fly competition aerobatics so want to have the assurance that my radio gear is always in top notch shape for the next year's activities!
There has always been some contraversy on how to store battery packs and some would disagree with me on whether to store the packs charged or in a discharged state. I always store my battery pack in a fully charged state. My reasoning is that in talking to Red Scholfield, a battery expert, he says to store them fully charged because batteries lose there charge whether being used or not. About 1% per day for NiCads and 1.5% per day for NiMh cells. Storing them discharged means that the pack could discharge normally on their own BELOW the normal 1.0 or 1.1 volt per cell cutoff point. If this happens then your cells could suffer "cell reversal" and could very well damage the pack beyond any further use!
Hope this info helps. I give you this info based on my own personal experience and is my opinions only. I have very little if any problems with my radio gear and have been flying for over 12 years to date!
Stoney Creek Hawks RC
MAAC No. 43659
Radios used: Spektrum DX6i
Current builds: 1/4 scale J3 Cub & Neiuport 17 and KMP B-25.
Currently flying: Scratched Tele 40, Parkzone Stryker & 60" SPAD Debonaire
"Time flies like an arrow - fruit flys like a banana." Groucho Marks
|12-24-2004, 05:59 PM||#3|
I am: Boolean21
Join Date: Sep 2002
Feedback: 0 / 0%
Total Props: 56
Re: Servo Maintenance
I would not bother doing this on entry level servos, but if you have higher end servos worth some money then its worth the investement of a few parts to keep them in top shape.
I have servos with 2500+ flights on them that work as good as the ones with 100 flights on them.
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