[Boatanchors] BC-1004 slipping dial

[Richard Post]

Phil,

Have you oiled (very lightly) or otherwise lubed the pivots and 
bearings of the variable cap itself and its pre-load gearing so that 
only a minimum of torque is required?

Have restored several SP-200 series.  Nice sets.

73,

Rich

Boatanchor pix

<http://www.qsl.net/kb8tad>

At 9:41 PM +0000 12/20/04, Philip Atchley wrote:
>Hi,
>
>I've searched the Hammarlund Archives and found references to dial 
>slippage, but nothing "fixed" it (cleaning etc).  The BC-1004 that 
>I'm working on (Basically a Hammarlund SP-200 series receiver) has a 
>bad case of the "Hammy Slippage" on the bandspread dial, requiring 
>much spinning of the bandspread tuning to "eventually" tune across 
>the spread of the dial.
>
>Things checked:
>1.  Plastic Dial and the split washers were cleaned of any grease, dirt etc.
>2.  Tuning capacitor turns freely, doesn't seem to be binding.
>3.  Dial is Warped some, but meshes with the split washer ok.
>4.  Slot in the split washer seems to be wider than the main tuning 
>(which works stiffly), but I can't figure any way to "tighten" the 
>split in the washer.  Working quarters is quite cramped between 
>front of the chassis and the coil compartment.
>
>All ideas appreciated.
>
>73 de Phil,  KO6BB
>982 Different NDB's heard to date.
>
>http://users.mercednet.com/beaconeer/
>Merced, Central California, 37.3N  120.48W  CM97sh
>