[TowerTalk] Ham IV rotor reassembly

Roger (K8RI) K8RI-on-TowerTalk at tm.net
Sat Oct 30 13:40:59 PDT 2010



On 10/30/2010 11:13 AM, Barry Gross wrote:
> I achieved success thanks to several helpful emails - I had the races ass
> backwards (i.e., races aren't necessarily those smooth polished surfaces).
Are you referring to the races or retainers?  The plastic parts are 
retainers, not races.

73

Roger (K8RI)
>
> Tnx/73,
> Barry N1EU
>
>
> ----- Original Message ----
> From: Barry Gross<n1eu at yahoo.com>
> To: towertalk at contesting.com
> Sent: Sat, October 30, 2010 1:07:33 PM
> Subject: Re: [TowerTalk] Ham IV rotor reassembly
>
> I disassembled and checked - bearing retainers were correct.  I posted photo
> series showing the reassembly:
>
> http://n1eu.com/ham4.jpg
>
> If there are any experts out there, perhaps you could comment on the first photo
> and whether the vertical level of the lower bearing race looks correct.  The
> last photo in the series shows the slightly too large gap to bridge - it's very
> close but just can't get all screws threaded.
>
> Unless a light bulb goes off somewhere, I'll send it on to one of the rotor
> experts to sort out.
>
>
> Tnx/73,
> Barry N1EU
>
> --- On Sat, 10/30/10, Barry Gross<n1eu at yahoo.com>  wrote:
>
>> From: Barry Gross<n1eu at yahoo.com>
>> Subject: Re: [TowerTalk] Ham IV rotor reassembly
>> To: towertalk at contesting.com
>> Date: Saturday, October 30, 2010, 6:35 AM
>> Thanks for many responses suggesting
>> one of the bearing retainers might be upside down.  I
>> carefully installed them with the flange away from the
>> central rotating race.  But the suggestion does make
>> sense and I'll have to bite the bullet and disassemble again
>> to double check (how many bearings will fly free this time?
>> hi).
>>
>> Tnx/73,
>> Barry N1EU
>>
>> --- On Sat, 10/30/10, Robert<rgshauger at myyellowstone.net>
>> wrote:
>>
>>> From: Robert<rgshauger at myyellowstone.net>
>>> Subject: Re: [TowerTalk] Ham IV rotor reassembly
>>> To: "Barry Gross"<n1eu at yahoo.com>
>>> Date: Saturday, October 30, 2010, 3:56 AM
>>>
>>> Sounds like one the bearing retainers is upside
>> down...
>>> retainer flange up on the first one and flange down on
>> the
>>> second
>>>
>>> Bob W7KD
>>>
>>>
>>> ----- Original Message ----- From: "Barry Gross"
>> <n1eu at yahoo.com>
>>> To:<towertalk at contesting.com>
>>> Sent: Friday, October 29, 2010 3:56 PM
>>> Subject: [TowerTalk] Ham IV rotor reassembly
>>>
>>>
>>>> I seem to be stuck at the last step of a Ham IV
>>> reassembly and would appreciate any helpful advice.
>>> I've lowered the main assembly into the upside down
>> upper
>>> housing and made sure the potentiometer arm got seated
>> along
>>> with the 3 housing guides.  I've got both bearing
>>> retainers with proper side down, etc.  I've lowered
>> the
>>> brake housing into place and lined up the 4 bolt holes
>> after
>>> releasing the brake but there's just a slightly too
>> big gap
>>> between the housings for the bolts to reach across and
>> get
>>> threaded.
>>>> Is it normal to have to wrestle across a gap
>> between
>>> the upper/lower housings?  Any tips appreciated.
>>>> Thanks&  73,
>>>> Barry N1EU
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>>
>>>>
>>>>
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>>>
>>>
>>
>>
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>
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