[R-1051] R-1051

[Larry Kirkland]

I decided to go ahead and take the motor out and do it right.  I am to 
the point where I am trying to get the bevel gear off the shaft.  It is 
amost off, but the end of the shaft has a burr and is not cooperating.   
Also my allen wrench is no good and I need to find another one.  I may 
have to order one.  Can you recommend any sources?  It's a tiny thing.

Larry



Cecil Acuff wrote:

> You might want to disconnect one side of the motor from the circuitry 
> to prevent back feeding the motor driving electronics.  May not be an 
> issue but just in case. If the motor were running though I would think 
> you would have heard it.  The gear boxes make a bit of noise...less 
> with no load but still enough to be heard I would think.
>
> Cecil...
> ----- Original Message ----- From: "Larry Kirkland" <lkirkland at sc.rr.com>
> To: "R-1051 Discussion Group" <r-1051 at mailman.qth.net>
> Sent: Monday, June 12, 2006 11:59 AM
> Subject: Re: [R-1051] R-1051
>
>
>> Cecil,
>> I have the module out and opened up.  The bevel gear on the end of 
>> the motor shaft is loose.   It is safe to tighten the bevel gear and 
>> put 28 vdc on the motor lead to test it?
>>
>> Larry
>>
>>
>>
>> Cecil Acuff wrote:
>>
>>> It is tedious but the motor can be disassembled, cleaned, lubed and 
>>> reassembled.  I usually us an abrasive pencil eraser to polish the 
>>> comutator and spray degreaser to clean everything up.  There is a 
>>> gearbox on the top end that a few drops of synthetic oil should be 
>>> placed in where the motor shaft enters as well.
>>>
>>> That should fix your problems with tuning....
>>>
>>> Cecil....
>>> ----- Original Message ----- From: "Larry Kirkland" 
>>> <lkirkland at sc.rr.com>
>>> To: "R-1051 Discussion Group" <r-1051 at mailman.qth.net>
>>> Sent: Monday, June 12, 2006 9:27 AM
>>> Subject: Re: [R-1051] R-1051
>>>
>>>
>>>> Cecil,
>>>> You are right about the other motor.  I cannot hear it running 
>>>> after the RF deck motor stops.  I will check it out and let you know.
>>>> 73's
>>>> Larry W4LK
>>>>
>>>> Cecil Acuff wrote:
>>>>
>>>>> The problem is you have a stalled motor in the Mhz synthesizer 
>>>>> module of the six pack.  There are two motorized things in the 
>>>>> radio...one the turret in the RF deck...easy enough to check...you 
>>>>> can watch it go round and round. The other is not so easy...it's a 
>>>>> motor driven crystal oscillator switch. If the motor stops you 
>>>>> will only get one band to function.
>>>>>
>>>>> When you tune the Mhz on the front panel in one direction the RF 
>>>>> deck moves only one step if you move the knob the other direction 
>>>>> the RF deck runs much longer to do a full rotation.  Turn the knob 
>>>>> the direction the direction that results in single steps and after 
>>>>> it stops you should hear the crystal switch motor running for a 
>>>>> few seconds after the RF decks stops.  If you don't hear it that 
>>>>> confirms the motor problem.  The only problems I have seen from 
>>>>> code generator is where the thing either stops on the wrong 
>>>>> frequency or won't stop the motors at all.  The code generator and 
>>>>> encoder switches in the Mhz module of the sixpak and the base of 
>>>>> the RF deck form open seeking circuits. I've had one of the metal 
>>>>> bushings that separates the layers in the code generator short 
>>>>> against a trace on one of the circuit boards resulting in no right 
>>>>> answer from the encoders so it would just spin the motors until 
>>>>> you turned it off or selected the one frequency that shorted that 
>>>>> trace anyway.
>>>>>
>>>>> I think your problem is a stalled motor....
>>>>>
>>>>> Good Luck
>>>>>
>>>>> Cecil...
>>>>> ----- Original Message ----- From: "Larry Kirkland" 
>>>>> <lkirkland at sc.rr.com>
>>>>> To: "R-1051 Discussion Group" <r-1051 at mailman.qth.net>
>>>>> Sent: Monday, June 12, 2006 8:32 AM
>>>>> Subject: [R-1051] R-1051
>>>>>
>>>>>
>>>>>> I have been working on a R-1051B here that I got recently.  It 
>>>>>> works only on the 4 MHz range.  The code generator switch A2A7 is 
>>>>>> putting out a tune relay ground on all ranges but the 4 MHz 
>>>>>> range.  I have checked the other outputs of the code switch and 
>>>>>> they are correct.
>>>>>>
>>>>>> Is it advisable to disassemble the code generator to look for the 
>>>>>> fault? The manual says it is not field reparable and offers no 
>>>>>> other info about the device.
>>>>>>
>>>>>> Thanks,
>>>>>> Larry W4LK
>>>>>> _______________________________________________
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>>>>>>
>>>>>
>>>>>
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