Re: [AMRadio] Re: AMRadio Digest, Vol 6, Issue 45
Mahlon Made the adjustment as per the instructions. After a bit of fiddling, it now switches to all three VFO positions. Will start the reassembly process now! Thanks again. Byron - Original Message - From: "Mahlon Haunschild" <[EMAIL PROTECTED]> To: Sent: Saturday, July 31, 2004 9:41 AM Subject: [AMRadio] Re: AMRadio Digest, Vol 6, Issue 45 > > Byron, > > I've some experience at this. Problems I've seen: > > - Dry/congealed lubricant in the VFO bandswitch shaft bushing (ANY > friction in the VFO switch will stop the mechanism cold) > - Imperfect machining of the drive cam, making the pins bind up instead > of passing through > - Height/depth of the drive cam set wrong > - Drive arm too far away or too close to the drive cam > - Registration off (e.g. VFO set for 11 meters when the rest of the > bandswitch isn't). The VFO switch has three positions: 160, 80 thru > 10, and 11. > - Broken VFO switch (God forbid) > > Is your problem any of these? I have a Ranger assembly manual that > contains the complete set-up procedure for this, but lets try to > eliminate the obvious first. Your problem is solvable so long as > nothing is broken > > regards, > > Mahlon - K4OQ > > ps: Have any of you ever seen one of the Johnson assembly manuals? How > anyone ever managed to assemble a Ranger or a Valiant with this > information is beyond me. > > -- > > > > Message: 1 > > Date: Sat, 31 Jul 2004 00:34:25 -0400 > > From: "Byron Lichtenwalner" <[EMAIL PROTECTED]> > > Subject: [AMRadio] Viking Ranger Bandswitch-VFO linkage > > To: > > Message-ID: <[EMAIL PROTECTED]> > > Content-Type: text/plain; charset="iso-8859-1" > > > > Hello Friend > > I am in the process of restoring a Ranger I. The bandswitch does not switch to the 11 meter position at the last clockwise click of the bandswitch. Is there a prescribed set-up procedure for this mechanical linkage? > > > > Byron, W3WKR > > __ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Re: AMRadio Digest, Vol 6, Issue 45
Byron, Sounds like you've hit all of the usual suspects. If you can handle large file attachments, I'll scan & send to you the relevant sections out of the assembly manual. You may have the drive pins 180 degrees out or something like that. The VFO bandswitch drive is a pretty crude excuse for a real Geneva drive, but it works well and of course is low cost (in keeping with Johnson's reputation as the "Chevrolet" of ham radio). My two Rangers and my Valiant all work fine in this area. By the way, I mis-typed in my first message. Should have typed "The VFO switch has three positions: 160-80, 40 thru 10, and 11." But I think you know that. regards, Mahlon - K4OQ Byron Lichtenwalner wrote: Hello Mahlon Thanks for the check list, but no. I have checked the things you listed, and they are not the problem I am dealing with at this point. The cam is well lubricated and the pin passes freely in moving from the 160-80 meter position to the 40 and up position. there is no engagement of the pin from the 40-10 meter position to the 11 meter position. That's why I was looking for the "official" set up procedure. I don't know about the height of the cam above the chassis and it starting position with the vfo switch in the 160-80 meter position. If I knew that was right, I could get the lever with the pins set by trial and error. Just trying to verify the starting position. Thanks for the check list. At least can eliminate some potential problems. Byron W3WKR - Original Message - From: "Mahlon Haunschild" <[EMAIL PROTECTED]> To: Sent: Saturday, July 31, 2004 9:41 AM Subject: [AMRadio] Re: AMRadio Digest, Vol 6, Issue 45 Byron, I've some experience at this. Problems I've seen: - Dry/congealed lubricant in the VFO bandswitch shaft bushing (ANY friction in the VFO switch will stop the mechanism cold) - Imperfect machining of the drive cam, making the pins bind up instead of passing through - Height/depth of the drive cam set wrong - Drive arm too far away or too close to the drive cam - Registration off (e.g. VFO set for 11 meters when the rest of the bandswitch isn't). The VFO switch has three positions: 160, 80 thru 10, and 11. - Broken VFO switch (God forbid) Is your problem any of these? I have a Ranger assembly manual that contains the complete set-up procedure for this, but lets try to eliminate the obvious first. Your problem is solvable so long as nothing is broken regards, Mahlon - K4OQ ps: Have any of you ever seen one of the Johnson assembly manuals? How anyone ever managed to assemble a Ranger or a Valiant with this information is beyond me. -- Message: 1 Date: Sat, 31 Jul 2004 00:34:25 -0400 From: "Byron Lichtenwalner" <[EMAIL PROTECTED]> Subject: [AMRadio] Viking Ranger Bandswitch-VFO linkage To: Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="iso-8859-1" Hello Friend I am in the process of restoring a Ranger I. The bandswitch does not switch to the 11 meter position at the last clockwise click of the bandswitch. Is there a prescribed set-up procedure for this mechanical linkage? Byron, W3WKR __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Re: AMRadio Digest, Vol 6, Issue 45
Hello Mahlon Thanks for the check list, but no. I have checked the things you listed, and they are not the problem I am dealing with at this point. The cam is well lubricated and the pin passes freely in moving from the 160-80 meter position to the 40 and up position. there is no engagement of the pin from the 40-10 meter position to the 11 meter position. That's why I was looking for the "official" set up procedure. I don't know about the height of the cam above the chassis and it starting position with the vfo switch in the 160-80 meter position. If I knew that was right, I could get the lever with the pins set by trial and error. Just trying to verify the starting position. Thanks for the check list. At least can eliminate some potential problems. Byron W3WKR - Original Message - From: "Mahlon Haunschild" <[EMAIL PROTECTED]> To: Sent: Saturday, July 31, 2004 9:41 AM Subject: [AMRadio] Re: AMRadio Digest, Vol 6, Issue 45 > > Byron, > > I've some experience at this. Problems I've seen: > > - Dry/congealed lubricant in the VFO bandswitch shaft bushing (ANY > friction in the VFO switch will stop the mechanism cold) > - Imperfect machining of the drive cam, making the pins bind up instead > of passing through > - Height/depth of the drive cam set wrong > - Drive arm too far away or too close to the drive cam > - Registration off (e.g. VFO set for 11 meters when the rest of the > bandswitch isn't). The VFO switch has three positions: 160, 80 thru > 10, and 11. > - Broken VFO switch (God forbid) > > Is your problem any of these? I have a Ranger assembly manual that > contains the complete set-up procedure for this, but lets try to > eliminate the obvious first. Your problem is solvable so long as > nothing is broken > > regards, > > Mahlon - K4OQ > > ps: Have any of you ever seen one of the Johnson assembly manuals? How > anyone ever managed to assemble a Ranger or a Valiant with this > information is beyond me. > > -- > > > > Message: 1 > > Date: Sat, 31 Jul 2004 00:34:25 -0400 > > From: "Byron Lichtenwalner" <[EMAIL PROTECTED]> > > Subject: [AMRadio] Viking Ranger Bandswitch-VFO linkage > > To: > > Message-ID: <[EMAIL PROTECTED]> > > Content-Type: text/plain; charset="iso-8859-1" > > > > Hello Friend > > I am in the process of restoring a Ranger I. The bandswitch does not switch to the 11 meter position at the last clockwise click of the bandswitch. Is there a prescribed set-up procedure for this mechanical linkage? > > > > Byron, W3WKR > > __ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net
