(ET) 12V winch

[et jpjt net]

Hump, the problems I have with the winch (Superwinch 1500) are it is too 
strong and too fast.  
Running at 36V would make it faster (and stronger?) and that would be a 
bigger problem.  
Already I have to use some kind of disposable sacrificial link between the 
strap and the 
implement so as to avoid ripping the fixture right off the implement.  I 
use a 1.5" or 2" 
diameter split ring (keyring).  When the snowblower is all the way up 
against the stop and I 
haven't managed to get my finger off the up switch, the split ring uncoils 
and stretches so 
that nothing breaks.  I've been trying to brainstorm some kind of fairlead 
mounted on a spring 
arm so I can get a visual indication of imminent damage, but I haven't got 
anything yet.

The other possibility I've been considering is some way of implementing a 
limit switch, but 
that would need a different setup for each implement, and has other 
electromechanical issues.

Still thinking...

Joel


-----Original Message-----
From: elec-trak-bounces cosmos phy tufts edu [mailto:elec-trak-bounces 
cosmos phy tufts edu] 
On Behalf Of ext Tim Humphrey
Sent: August 31, 2006, Thursday 4:15 PM
To: elec-trak cosmos phy tufts edu
Subject: Re: (ET) Chargers

Since you said the winch is beefy. I would just wire it to run on 36v.

I have a small portable air compressor I bought at K-mart; it is the
"Truck-Air 125" I believe. It is designed for use on a 12 v auto battery. I
think you know the type I'm talking about. I cut off the cigarette lighter
end and attached some clip leads. I run that 12v motor off the 36v pack,
everytime I use it. So far no problems. And let me tell you it really moves
some air on 36v.

I speculate that the winch you have has an even beefier motor and was
designed for at least 4 times the load you will ever put on it with an ET.
Just run it off the entire pack. It'll be alot quicker too.  

--
Stay Charged!
Hump

GE I-5
Blossvale, NY


>  
> 
> -----Original Message-----
> From: elec-trak-bounces cosmos phy tufts edu
> [mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of et jpjt net
> Sent: Thursday, August 31, 2006 3:41 PM
> To: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) Chargers
> 

snip

> On a separate but related topic, currently I'm running a beefy 12-volt
winch
> on the front of the tractor instead of the defunct OEM lift.  I worry 
> that
> I'm imbalancing the pack by driving it off the two front T-105s,
especially
> when snowblowing or plowing when I lift the blower or plow up and down 
> all
> the time.  I wonder if I take out the OEM charger and start using a 
> Soneil
> 3610SRF instead, I can put a 12V battery in it's place and use that for
the
> winch motor.  Then to charge the 12V I can get a 36VDC-12VDC converter.  
> I
> could use an inexpensive little one with low rated amps, and make sure
it's
> disconnected from the circuit when drawing the big amps with the winch.
> (Maybe I can use one of those self-resetting-fuse things, positive
> temperature coefficient devices to protect it?)  Or maybe I'd be better
off
> with a separate Soneil charger for the 12V bat.
> 
> Joel
> ========