[Boatanchors] Jackson brothers (style) reduction drives

[Alan Gutfrucht]

Ron,

The friction on the drive can be increased by carefully compressing the tabs
surrounding the drive mechanism. I would first clean the drive with solvent
and remove all of the old grease. Blow it out and let it dry. New grease can
be added by packing it in the 1/4" female end and then use the blank end of
a 1/4" drill (or any 1/4" shaft) to pack it back in. I just use a good wheel
bearing grease when doing mine. I have found that a lower viscosity
lubricant (white lithium) does not work as well and gives the drive a
"bumpy" feel to it. 

Be careful when compressing the tabs on the mechanism as just a little
adjustment makes a big difference.

If you can't bring it back to good operation, Surplus Sales of Nebraska has
them at $19 dollars each. The shaft is actually too long for your Swan and
you will have to cut it.

Regards,
Alan, WB2FZC


-----Original Message-----
From: boatanchors-bounces at mailman.qth.net
[mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of
bonddaleena at aol.com
Sent: Saturday, May 11, 2013 12:04 PM
To: boatanchors at mailman.qth.net
Subject: [Boatanchors] Jackson brothers (style) reduction drives

Hi, I need a bit of help here. I have restored many a radio with these
'ball' type reduction drives. In fact, I have a pair of Swans that are
almost completed.
Is there a way to tighten them up??? One of the Swans is nice and tight, the
other is very loose. It appears someone in the past sprayed it with
penetrating oil. Is the 'secret' in the type of grease or is it a mechanical
thing?. I have several spare drives that are nice and tight, but the shaft
length is too short.

Any experts out there???

thank you!

ron
N4UE
______________________________________________________________
Boatanchors mailing list
Home: http://mailman.qth.net/mailman/listinfo/boatanchors
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Boatanchors at mailman.qth.net

List Administrator: Duane Fischer, W8DBF
** For Assistance: dfischer at usol.com **


This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html