[ARC5] ARC 5 reciever backlash.

[Bruce Long]

You might not need to remove the tuning capacitor  I was able to clean old dry lube out of split anti back lash gears with repeated application of solvent

I used alternating acetone and penetrating oil with final clean with denatured achohol
Sent from my iPhone

> On Apr 23, 2017, at 1:05 PM, WA5CAB--- via ARC5 <arc5 at mailman.qth.net> wrote:
> 
> Inside the receiver, mounted to the front of the tuning capacitor, is a spring-loaded anti-backlash gear.  Probably the movable plate is stuck to the fixed plate due to hardening of the oil or grease.  It is many decades since I last did one but memory says that to get at it, you have to first remove the tuning dial and then remove the tuning capacitor assemble from the receiver.  Then you remove the gear by removing the snap-slide that retains it to the front of the capacitor frame.  Soak it in something like Varsol, periodically moving the movable plate relative to the fixed one.  Do not over-stretch the spring.  Once free and dry, lubricate with something like SAE 10 oil or instrument oil.  As you reinstall it on the post, pre-stretch the spring by rotating the movable gear the same amount as it was originally (assuming that it wasn't originally assembled with no stretch).
> 
> Robert Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480
> 
> In a message dated 04/23/2017 09:34:57 AM Central Daylight Time, arc5 at mailman.qth.net writes: 
>> 2) backlash.
>> I haven't taken the receiver apart yet to look at the mech. 
>> 
>> Any suggestions before I do?
> 
> 
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