Bert,
Sounds like a good option to me Bert. I guess it is a cost issue with the
tower company.
They would need to charge more for the locking device addition and would this
addition
have a positive impact on sales ? Maybe they could offer this an option.
The bigee for me is the cables and sheaves. I would like to see an option
(which I would gladly
pay for) to have stainless steel cables and sheaves with zerk fittings so I
could grease them regularly with my grease gun
like I do the thrust bearings on the mast. That would be super. I think
these options would pay for themselves,
I have hired to have the cables and bad sheaves replaced and it aint cheap !!
73,
Bob
K6UJ
On Jun 15, 2013, at 9:12 AM, Bert Almemo wrote:
> If you used a locking device on each section cables wouldn't be such a big
> issue and would last a lot longer. Many european crank-up tower
> manufacturers use locking devices on their towers. Versatower in one of
> them.
>
> How come US mfgrs don't use the same devices? Has anyone asked the US mfgrs
> why they don't use section locks? Maybe someone can pick up on the idea and
> make aftermarket locks? There is definitely room for improvement!!
>
> Locking each section would dramatically increase safety and you wouldn't
> have to read about towers coming down killing people and damaging equipment.
> OMHO!
>
> 73 Bert, VE3NR
>
>
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Andre
> VanWyk
> Sent: Thursday, June 13, 2013 1:39 PM
> To: Steve Dyer
> Cc: towertalk@contesting.com; john@kk9a.com
> Subject: Re: [TowerTalk] How to apply lube to HDX589
>
> Well I never heard of a crank up tower that failed because the cables were
> not lubricated PROVIDING manufacturer guidelines are followed and cables are
> changed when required.
>
> I think we as hams tend to both try to reinvent the wheel too many times. If
> it ain't broken, don't fix it!
>
> NJ0F
>
> Sent from my iPhone
>
> On Jun 13, 2013, at 11:41 AM, Steve Dyer <w1srd@yahoo.com> wrote:
>
>> K7LXC breaks the prime directive for lubricating crank-up cables. He sells
> Prelube 6 on his site and recommends using it. And yes, any professional
> user of wire rope always lubricates their cables on a regular
> maintenance/inspection schedule.
>> It baffles me why anyone would not lube the cable with the *proper*
> lubricant since the cable is THE critical link in a crank-up.
>> It's a testament to how well the cable holds up that more failures haven't
> occurred. That and it's way over-sized to the load.
>> 73,
>> Steve
>> W1SRD
>>
>>
>>
>>
>> ________________________________
>> From: "john@kk9a.com" <john@kk9a.com>
>> To: towertalk@contesting.com
>> Sent: Thursday, June 13, 2013 7:12 AM
>> Subject: Re: [TowerTalk] How to apply lube to HDX589
>>
>>
>> Lubricating the cable does go against the K7LXC prime directive. US
>> towers recommends replacing the cable every three years.
>>
>> Most wire rope is lubricated during manufacturing. Lubrication does
>> two
>> things:
>>
>> Reduces friction as the individual wires move over each other.
>>
>> Provides corrosion protection and lubrication in the core and inside
>> wires and on the exterior surfaces.
>>
>> If I owned a crank-up tower I would keep the cables lubricated and
>> only change them if there was noticeable corrosion or broken strands .
>>
>> John KK9A
>>
>>
>>
>> To: Bryan Swadener <bswadener@yahoo.com>
>> Subject: Re: [TowerTalk] How to apply lube to HDX589
>> From: Andre VanWyk <kr5dx@yahoo.com>
>> Date: Wed, 12 Jun 2013 22:45:37 -0400
>>
>>
>> I am missing something here as US Tower advises against lubricating
> cables.
>>
>> What are you gaining by lubricating cable? I my opinion if a
>> un-lubricated galvanized cable shows signs of rust, it is time to replace
> it.
>>
>> 73's
>> NJ0F
>>
>> _______________________________________________
>>
>>
>>
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>>
>>
>>
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