[TowerTalk] Cable on winch drum

[Dick's]

One more item I should mention... it is always preferable to use commercially swaged aluminum crimps on wire ropes than rely on hardware store “U” bolts. I once had a business that manufactured dumping devices which used electric winches. When doing a prototype device we had 2 or 3 U bolts securing a wire rope loop end and even though they were the proper size, the wire rope pulled out. If you MUST use U bolts, make sure to wrap the loose end back into the second from the end U bolt.

Dick, K0CAT

Sent from my iPhone 

——

> On Apr 16, 2019, at 2:31 AM, Don <w7wll at arrl.net> wrote:
> 
> This is another item (among many on theFulton installation sheet which is available on line) which should always be remembered. I suspect other competitive winch manufacturers offer the same advice on the gambit of issues to consider.
> 
> "‡ Assure there is adequate safety factor, of at least 3 times the maximum load for all components used." Never ever undersize the cable you use.
> 
> Don W7WLL
> 
>> On 4/15/2019 11:19 PM, Don wrote:
>> From the Fulton K2550 winch instructions. Useful for other how to's too.
>> 
>> ‡ "Always maintain a minimum of three (3) complete wraps of cable or rope on the drum"
>> 
>> This supports Ron's note. This is cable wraps, not layers.
>> 
>> Don W7WLL
>> 
>>> On 4/15/2019 7:30 PM, Don Moman VE6JY wrote:
>>> 2 or maybe 3 wraps (nice and snug) not layers is what you want...
>>> 
>>> 
>>> On Tue, Apr 16, 2019 at 2:23 AM Ron Young W8RJL via TowerTalk <
>>> towertalk at contesting.com> wrote:
>>> 
>>>> Somewhere I read that there should be a minimum of 2 layers of steel cable
>>>> on a hand winch drum before the winch starts to pick up the load. Can any
>>>> one confirm. I will be raising a US Tower MA40 mast from horizontal to
>>>> vertical. Thanks & 73 Ron W8RJL
>>>> 
>>>> 
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