"wmacleod" <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Thank-you both Garey and Evan. From your descriptions I expect the units I have need a small amount of lubrication on the worm gear and main bearings. I am familiar with the article mentioned below and will be careful not to contaminate the plastic gears. Wade
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Garey Barrell Sent: April 18, 2008 5:21 PM To: [EMAIL PROTECTED] Subject: Re: [drakelist] C-Line PTO Friction Question Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Wade - I have owned / worked on a LOT of 4 Series units since about 1964, and I've never come across one that would 'spin' the way the old Hammarlund and Hallicrafters flywheel driven dials would. They should however be easily tuned by resting your finger on the side of the knob (or in the button on the C Line) and moving your finger in a circle. The PTO is driven directly by the lead screw and follower within the "gearbox" at the front of the PTO. All the gears are there solely to drive the dial disc(s). An excellent article on the foibles of this arrangement is at: <http://www.wb4hfn.com/DRAKE/DrakeArticles/PTO/Drake_PTO.htm> The article is based on the C Line, but is applicable to all the 4 units that use the nylon gears. The big "secret" is that nylon gears are designed to run _DRY_ , i.e., no lubrication at all, especially petroleum based lubricants. 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs <www.k4oah.com> H D MAC LEOD wrote: > > "H D MAC LEOD" <[EMAIL PROTECTED]> made an utterance to the > drakelist gang > ---------------------------------------------------------------------- > > Hi Drakelist. > I am interested in understanding how smooth the Drake C Line dial > mechanisms were when the product was originally shipped from the > factory. Perhaps some of you are original owners of C Line equipment > and would comment? > > I have read that "The dial mechanism should offer only slight > resistance to the tuning knob. You should be able to fast spin the > tuning knob by placing your index finger on the outside of the knob > and rotating your hand." > > Is this technically correct? I have a couple of C-Line units from > different sources where the dial mechanisms are identical and smooth > but definitely not free finger spinning as described above. > > Wade VA3HM > > > ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ---------------------------------------------------------------------- ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------
