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dpb dpb is offline
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Default Optimal length of lag screws

krw wrote:
In article , says...

....

Winches for pulling don't have the safety locks for overhead lifts
hoists do...


Ok, that makes some sense, at least. Hoists automatically have
safety locks? What sort of locks?


Even winches that do have brakes or locking mechanisms won't be rated
for overhead lifts unless they actually are designed as dual-purpose.

Examples...

Winch --

http://www.northerntool.com/webapp/w...0251_200320251

1500-lb AC powered

From the product description...

"Features an all-steel planetary geartrain, dynamic and mechanical brake
and circuit breaker protection"

Sounds just fine, doesn't it?

Read the conditions in the manual for the same winch--

9. NEVER USE YOUR WINCH FOR HOISTING
APPLICATIONS OR FOR LIFTING OR MOVING PEOPLE.

10. Your winch is not designed or intended for overhead hoisting
operations.

You'll find that universally so for all but a very tiny fraction (if
any, I actually don't know of a dual-purpose one made, simply left it as
a possibility that it could possibly be although it would then actually
be a hoist, not a winch).


Hoist for comparison...

http://www.northerntool.com/webapp/w...2848_200342848

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