Archive through September 08, 2010

[lpalma]

ugly cub alert!!!

Believe it or not those lights are very bright,Yankee turnflex brand.It is all in the lens....

 

[fsnerd]

looking at a 129, electric front PTO clutch.
I have a 128, mechanical front PTO clutch.
so, I am only familiar with the mechanical clutch.

On the 129, the PTO seems to be always engaged. the pulley spins when ever the engine is running. I have not tried putting the mower deck on, so maybe the PTO is free spinning?

I see the PTO engagement handle contacts an electric switch under the dash, but engaging and disengaging the handle has no effect on the PTO.

I need to check the PO to see if it is working. should I put the mower on it, to give it a load?

is it possible the PTO broke in the engage position?

with PTO off, the front pulley should not spin, should it?

 

[mgonitzke]

The front pulleys should not spin. The air gap is probably out of adjustment. The 129 should not have an electric PTO, so something odd is going on there.

 

[fsnerd]

Matt Gonitzke (Mgonitzke)

maybe a PO installed it.

I will check the air gap.

 

[fsnerd]

hang on, I am confused.
lets first make sure I have an electric PTO clutch.

I just checked the service manual, the electric clutch looks nothing like the clutch I have. the clutch on the 129 looks like the mechanical clutch on the 128.

I am going to have to post pics when I get a chance. It could have parts of an electric and mechanical PTO from a PO trying to create a frankencub monster.

 

[fsnerd]

just checked with one of the sponsors for parts, they do not list an electric clutch for the 129.
you know what would really maker sense right now? checking the serial number. maybe it is not even a 129.

I will be back after getting the serial number.

 

[T-Mo]

Kraig,
Firefox 3.6.8

 

[rtunison]

Frank C.,

That's exactly what happened. There was some nasty BLACK water in the shaft itself and evidence of water in the box but it had drained out of there.

The brazing would make sense Kevin.

Rick Beem.........

 

[dfrisk]

RICHARD T, KEVIN H. - If I remember correctly, the steering shaft is hollow tubing until the worm section which is solid. And right where the two pieces join there's a roll of metal you can see in the pic of the cleaned-up shaft. I don't think brazing would be strong enough to hold, if I had to Guess, I'd say the two parts are FRICTION WELDED, one of the pieces is spun to a high speed, probably thousands of RPM, then the spinning & stationary parts are forced together with great pressure, the parts create friction, the metal melts, the part stops spinning then cool and are permanently joined with very little misalignment and cleanup required. The copper covered area is probably used to protect that area of the shaft from metal splatter or maybe to promote the metal bonding. Plating costs money so there has to be a good reason for doing it.

I used to work about a block from a company called American Friction Welding, I used to see semi-trucks with names like Rockwell, Spicer, DANA, etc backed into their dock ALL the time. I read a really interesting article probably 15+ yrs ago how CAT was using friction welding to weld Stellite valve heads onto hardened alloy steel valve stems for use as exhaust valves for their turbo-diesel engines. A valve head "POPPING" off a valve stem is the easiest way to turn a perfectly fine $50,000+ diesel engine "Automotive Scrap Iron for re-melt" there is. So it is a very secure way to joing two pieces of metal once the process is perfected.

ART - The fight between the 782 & 1872 would have been more FAIR if the 782 actually had AN ENGINE!

 

[kphill]

Dennis, I do not know for a fact if it was brazed together, I am just going by appearance. Many things today are friction welded, But during that time period I think it was a very new technology, And brazing was a common way of joining metal, not so much anymore because of faster and new technologies. Brazing does have it's advatages, As it will absorb vibration better without cracking as apposed to a weld joint. And it is surprisingly strong. I just wonder if Lousiville had friction welding equipment in the 1960-1975 time frame.