[Boatanchors] Handling Heavy Chassis
Garey Barrell
k4oah at mindspring.com
Sat Feb 15 11:23:55 EST 2014
Yes! Heavy end down. I've never had a problem with the panel, but blocking certainly wouldn't hurt. You do NOT want to
break that coupler, and it's all too easy to do. And if you NEED to remove the front panel, there is a hole in the
chassis to allow you to loosen the setscrew(s) for the coupler so it can either stay with the reduction drive or the
VFO, I can't recall which. The key is to not let the coupler have to support the reduction drive (HEAVY), it WILL
break, and is a special part. It looks like a regular phenolic shaft coupler, but it takes a 1/4" on one side and a
3/16" (?) on the other! Not a stock item, even in 1958!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
Richard Solomon wrote:
> There is iron on both ends, so I assume you mean the bigger one (HV XFMR)
> down.
>
> Also I guess I need to add small blocks to keep the front panel from taking any weight.
>
> 73, Dick, W1KSZ
>
>
> On 2/14/2014 6:24 PM, Garey Barrell wrote:
>> Yep, there's another one........
>>
>> Yes, it's ok on the end. Again IRON end down.
>>
>> 73, Garey - K4OAH
>> Glen Allen, VA
>>
>> Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
>> and TR-4/C Service Supplement CDs
>> <www.k4oah.com>
>>
>> Richard Solomon wrote:
>>> Actually, this one has SS rectifiers. Something about the Filament Xfmr arced over.
>>> I won't know until I get to the underside.
>>>
>>> Folks say I should not turn the Valiant over with the front panel supporting some of
>>> the weight. So I guess on it's side is OK ??
>>>
>>> Good hint on the cable bundle, but that problem may have been eliminated.
>>>
>>> 73, Dick, W1KSZ
>>>
>>>
>>> On 2/14/2014 2:12 PM, Garey Barrell wrote:
>>>> Dick -
>>>>
>>>> Don't forget, if you plan to operate it upside down, or on it's side, you'll need a pair of 3B28 rectifiers!!!
>>>> You can put the 866As back in when it's right side up again.
>>>>
>>>> Easiest to work on it standing on one end (IRON end down!) and resting on a rug sample that will allow you to
>>>> rotate it easily.
>>>>
>>>> While you're in there, it would be worthwhile to examine and relieve the cable bundle that is TIGHTLY wrapped
>>>> around the inboard corner of the plate transformer. I have seen more than a couple where the insulation has cold
>>>> flowed and exposed the filament leads for the rectifier, which just happen to have the full plate voltage (+) on them.
>>>>
>>>> 73, Garey - K4OAH
>>>> Glen Allen, VA
>>>>
>>>> Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
>>>> and TR-4/C Service Supplement CDs
>>>> <www.k4oah.com>
>>>>
>>>> Richard Solomon wrote:
>>>>> I have a Viking Valiant that will need work. The idea of man-handling this
>>>>> behemoth (turning it upside down and back right again, many times) does
>>>>> not appeal to me, besides, I am sure to break something.
>>>>>
>>>>> Has anyone used something akin to a Motor Stand or similar device to
>>>>> facilitate rotation ?
>>>>>
>>>>> Thanks for any ideas,
>>>>>
>>>>> 73, Dick, W1KSZ
>>>>
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