Warn 8274 Motor Problems

Not sure I'd call that a complete rebuild. But depending on what you problem is....might work.

looked more of a mechanical overhaul. He didn't do anything with the motor/electrical.

How does that synthetic rope compare to wire rope?

Is the blown motor why Warn says 'not' to use the synthetic rope?

Isn't that where they say the motor will overheat and die?

It uses the steel rope as a heat sink.

I would say it's time to open it up and see where the solder connection melted.

Mike

SB wrote:

That link is just one I found to outline the test for the motor. That's not my rebuild. I have a completely different situation, motor quite running while in operation. I had only been running it for a minute or two, and it wasn't even warmed up yet.

My solenoids are pulling in, power is going to the correct motor terminals, and connections are freshly cleaned. Has to be in the motor. I call warn, Bill. Thanks.

I have the standard 5/16 aircraft cable not the synthetic rope. That stuff has not impress me as a EROCC judge....saw it snap several times last year (it did fall straight down though).

A buddy of mine went to a local "starter" rebuild shop and had his 8274 motor rebuilt....seemed to work.

Daren

I've seen the results of a lightning strike that happened to hit a cable-way at an airport. It actually hit the pull-pit where most junctions were made. It fused a bunch of wires in to one mass and some were just blown apart. Would the sythetic rope melt to itself if it was supposed to sink heat?

Id' guess that the same places that do alternators would do these.

Basically check the stator for straightness and make sure your commutators are alright. Then rewrap your coils....bearings are obvious too....

No, the rope wouldn't sink any heat away so the hot part would just get hotter. The rope would act more like an insulator.

Mike

SB wrote:

I've seen the synthetic rope on just about every winch made. EROCC ran approx 60 vehicles each competition and NEVER saw any winch failures. Believe me these winches were worked hard. I don't think that on an 8274 the cable acts as a sink for the motor....the transfer of heat from the motor, to the gear box, and then finally to the cable roll is not plausible.

Daren

So far from what I've seen Bill, the rope may make GREAT insulation and only marginal pull line ; )

Daren

Mike,

The design of the 8274 makes the rope the last possible heat sink for the motor. The motor casing and the gear box are the more likely heat sink. I'm not disputing that some heat is dissipated from the cable, but it's probably not much. On a standard profile winch( the 8k or 9k series) I can see how the rope would be a definite portion of the heat sink.

Daren

Right you are Bill. But this is not my first time winching. I just did not want to bore the group with the "proper" winching techniques. I'm sure you all know them. I can assure you that the winch was not over worked at the time it quit. Maybe the time before.....

Daren

That's exactly what I'm thinking. Just need to get it fixed now.

Daren

I'll do that tomorrow. Thanks

Daren

In news:Z%znc.16915$V snipped-for-privacy@twister.southeast.rr.com, Daren McMorris from was injured because:

So, has anyone bought this synthetic crap? Do they suggest you not use it on any particular winches? Could this be a liability issue? Would it be worth my time to slap the synthetic crap on a winch that is known to use the cable spool and cable as a heat sink, let something dumb happen, then sue?? Hypothetical, of course.