[Hammarlund] HQ150 Bandspread dial problems

[Bill Cromwell]

On Tue, 2013-01-01 at 13:38 -0800, na2x at yahoo.com wrote:
> I have a HQ150 I'm trying to get into working shape and I'm having problems where both the general coverage dial and the ham band bandspread dials are slipping.   As I turn either big knob, there's part of the rotation where the plastic dial slips
> 
> Is there an adjustment that I need to know about to correct this?  I notice there's a nut on the back of the flywheel. Does this have to be tightened a certain amount to apply the right pressure on the pulley that the plastic dial rides in so that it rotates smoothly as the knob is turned?
> 
> Thanks for any hints. HNY everyone,
> Bob


Hi Bob,

First... I have never had to do anything to a couple of similar dials I
have had. But..other guys who had them said they first cleaned the edges
of that dial disc and one or two said they kinda sorta polished their
metal edged disc with fine steel wool to add just a little more
friction. It's not really polishing but just enough to break up a glaze
that may have developed. I would try a good cleaning with mild dish soap
(well rinsed). Be careful not to use anything on those dials that could
destroy the plastic or wash off the printed scales.Those HQ dials are
too cool. I often wish I still had mine.

73,

Bill  KU8H