[TowerTalk] TowerTalk Digest, Vol 195, Issue 31

[Raymond Benny]

Marko,

I do not have the part number, but it seems to me that it is probably a
standard belt size that can be purchased from most any automotive store.
They usually come in one inch increments.

If you can take it off, go to the auto store, they will measure it or
compare to others in their stock.

This is what I did on one of my towers. In another case, I took it back and
got the next small belt. By adjusting the position of the motor, I was able
tension the belt pretty tight.

Hope this is what you are looking for.

Ray,
N6VR

On Thu, Mar 21, 2019, 10:26 AM <marko.n5zo at gmail.com> wrote:

> Btw,
> Does someone have part number and source (other than UST) for that rubber
> belt used in  HDX589MDPL.
> This winter I was once or twice cranking up tower after some rains and belt
> was slipping on motor end.
> I immediately stopped and let it dry and it went up later without problem,
> but I was thinking it may be good idea to get
> replacement belt and have it on hand if ever needed.
> 73 de Marko N5ZO
>
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> Today's Topics:
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>    1. Re: Manually crank down a motorized tower (Dick Blumenstein)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 21 Mar 2019 09:43:25 -0400
> From: Dick Blumenstein <rcblumen at centurylink.net>
> To: Robert Harmon <k6uj at pacbell.net>
> Cc: "towerTalk at Contesting.com" <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Manually crank down a motorized tower
> Message-ID: <53d88577-3e44-12b3-d632-9f3895930999 at centurylink.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Hello Bob-
>
> I've got a 73' crank up tower and have thought about that, too.
>
> I guess it depends on what failed. If the motor just died, you could, of
> course, clamp the coupling shaft and then replace the motor. If the control
> box failed, you could replace that. However, if the gear box failed and
> locked up and wouldn't rotate, then you would have a much larger issue
> assuming the tower is in the cranked up position. My initial thoughts would
> be to cinch another wire cable onto the wire cable going up the tower with
> multiple U-clamps and connect that wire cable to a come-a-long to the base
> of the tower and pull down on the tower cable. That would alleviate the
> tension on the motor/gear/drum assembly and allow you to fix/replace the
> gearing mechanism.
>
> Dick, K0CAT
>
> =======================
>
>
> Robert Harmon wrote on 3/20/2019 7:40 PM:
> > I have a US Tower HDX589MDPL with the motorized drum.  I was wondering
> what I would do in the event that something failed in the control box and I
> needed to crank it down.
> > The gearbox has a worm gear and I believe I could temporarily take off
> the
> chain and turn the gear box sprocket by hand.  I would have to turn it
> until
> the cows come home but I think I could crank it down.  Am I correct about
> this ?  Have any of you had to crank down your motorized tower by hand ?
> >
> > Bob
> > K6UJ
> >
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> End of TowerTalk Digest, Vol 195, Issue 31
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