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[TowerTalk] FW: US Tower HDX572

To: <towertalk@contesting.com>
Subject: [TowerTalk] FW: US Tower HDX572
From: "KM5VI" <km5vi@flukey.cc>
Reply-to: km5vi@flukey.cc
Date: Tue, 18 Sep 2012 23:35:50 -0500
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Echo the good recommendations to look for a motor shop, but to address your
question you might try WW Grainger, a national industrial supply company.

73
KM5VI

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of K8RI
Sent: Tuesday, September 18, 2012 6:54 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] US Tower HDX572

On 9/18/2012 1:33 PM, Jim Lux wrote:
> On 9/18/12 5:45 AM, Tom Crothers wrote:
>> Hi Everyone,  Does
>> anyone have any words to the wise as far as ordering one of these
>> available
>> motors?  Does anyone recommend anything else, and/or have success stories
>> from past experiences with failed tower motors?

Some one else already mentioned it, but look around your area...yellow 
pager? and find an elect motor rewinding shop. They'll likely 
rewind/repair the motor at a fraction of the new cost and it should be 
just as good...maybe better.  I've even had them rewind old 1/2" drill 
motors.

>
> Are you sure the motor has hard failed?  Is the capacitor good? The
> capacitor switch?  If it's been sitting outside and exposed to the
> elements, it might just be crudded up and needs cleaning.
>
> If you've got a motor repair/rewind shop around, they might be able to
> fix it cheaper than buying a new motor.
>

Usually a lot cheaper.

> Induction motors are easy to take apart and pretty hard to permanently
> break, so before trashing a dead motor, it might be worth spending 20
> minutes to tear it apart and see if there's some obvious problem.
>
> If it had severe damage (overvoltage or melting the insulation from
> overtemp), then rewinding is an option, but for <1 HP, it's usually
> cheaper to just get a new motor.
>

Maybe so and maybe not. Get a quote.  Even the old drill motors I had 
rewound were cheaper and a lot more rugged than the stuff sold now days.

when I was installing the guy anchors for the 100' 45G, I purchased a 
new, heavy duty,  hammer drill of a well known brand. I was drilling 1" 
holes in 1/2" steel. On the 5th hole I felt it losing torque. It started 
blowing thick smoke followed by flames by the time I could let go of the 
trigger.  I had been using it less than 5 minutes and I had just brought 
it home from the store.  The old drill would probably break your arm 
before doing that. Back then Industrial meant you could pretty much pull 
the trigger, lean on it and let go once the hole was drilled.  The new, 
double insulated ones are not nearly as tolerant of heat and/or they are 
not built for continuous duty.

I took the drill back and they gave me a new one, no questions asked, 
but I did tell them if they wanted to look at it, they'd probably want 
to do it outside because that thing STUNK!  Actually the carrying case 
was hot to the touch, so they took my word. I think some one was going 
to look at it and I heard some one shout, "Don't open it in here!" <:-)) 
  That think was rank!

I asked for the heaviest duty hammer drill they had. Unfortunately that 
was it.  So, being careful and going slow I was able to finish the 20 
holes I had to drill.

Having said all that, if you really want to get a new motor check 
electrical supply houses in your area and see if they can get one like 
what you have and what would be the price.


73

Roger (K8RI)


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