[NSRCA-dist7] Servo replacement / wear - how to tell

[Scott]

There was some of the typical RC discussion at Hemet - and one topic that
came up, as it usually does, is servo wear and replacement. With today's
digital servos, I have the following questions about digital servo
replacement;
 
1) what are the symptoms of a digital servo that is starting to wear out?
    - poor centering ? 
        - does this equate to a louder 'buzz' at center
        - is the only way to tell this to put a servo on some sort of
protractor and look at the centering?
        - does thee servo draw more current?
 
2) What tests can be performed either 'in the plane' or 'outside the plane'
to determine if a servo needs to be replaced?
    - In plane testing would be ideal, but we must compare against a 'new'
servo, so maybe this is not practical.
 
Any thoughts on the above would be considered.
 
Thanks
 
sc
 
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