Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Marc

I cant find the post, but it took over a Half hour to remove that newspaper, it made it to the impeller.  A small TORCh might have sped up the process.

Ive encountered a Brick, and a few other small items that poped shear pins, with no permanent damage.

I can only imagine somebody with a Gravel driveway, Having the machine stop dead several yimes from Gravel ingestion, and what repeated abuse could cause. Something must eventually give.

Marc 

From the tip of the first Auger, all the way to the Piston. Yes, some belt slippage MUST be factored in.  Id love to run the numbers to figure the load of a BIG 11 HP engine at WOT, coming to a scretching hault when a ROCK jams the impeller.

When somebody came up with the idea of no SHEAR pins, some Engineers must have had COLD SWEATS.

There should be a KEY ( woodruff, hex, etc) for the Impeller mount, also one for each pulley on a shaft, Dont forget the keyway on the Flywheel. Id guess at least 4-5 keyways in the system. 

Ben07

Yes, I meant woodruff key.  I thought that when the auger strikes something causing the engines to stop suddenly from operating RPM, sometimes the woodruff key can break on the flywheel of the engine.  I didn't actually mean on other parts of the snowblower.  When this happens, I thought the timing on the engine gets fouled up and it really won't run correctly or not at all.

Rob, thanks for grabbing those exploded views.

My last machine was a 1974 paddle wheel Simplicity two stage. The auger was connected to a sprocket and chain  drive which in turn was connected to a belt and pulley system. No shearpins. I remember it  once ate the Sunday paper and the belt slipped and smoked with no other damage. 

I think I'd like shearpins when running a gearbox. However you have to believe Toro wouldn't bet the ranch on a system that would have such an obvious weakness. Their engineers must have taken these issues into consideration when designing this auger system. The breaking of those keys in various places in the drive as protection  would be a service nightmare in consideration that  auger jamming is not an uncommon occurence. Still,!

Hard to teach an old dog new tricks!

Woof Woof,

Marc  

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We have a function to go to yesterday.  It's snowing the whole time and when I get home there's about eight inches on the ground.  earlier in the day I was all psyched to get a blowin' but when I got home, I felt terrible and went to bet early.

I'm kind of glad I didn't clear the driveway because when I wake up, there's twice as much snow and all of the dirves that were cleared are once again, covered.  So, I go out, spend ten minutes trying to fire up the Toro before I realize I have the fuel shut-off valve on "off."  I turn it on and the 'Ol Tec starts with one pull. 

The snow is around fifteen inches deep but some drifts were three to four feet and the EOD was about three feet of pretty heavily packed snow.  El Toro handles it all in stride until I get to the right side of the EOD when I am immediately reminded of the email I recevied from Toro a while back:

"Toro snow throwers do not have shear pins.  The reason for this is if you hit something while snow throwing, the auger and engine will stop letting you know that something is wrong.  You can then remove whatever it was that you hit, start up the machine, and continue snow throwing.  If the snow thrower had shear pins, they would need to be replaced before starting the snow thrower again."

With all the snow, who expected the paper to be delivered...and the SUNDAY paper at that.  Well, true to Toro's word, the machine ingested the paper and stopped immediatley (I guess the shearless system works).  I didn't even have to look, I knew what had happened.  So, when I gor around to the front, there in all it's shredded glory is the Sunday paper jammed tight between the auger, impeller and housing.  A big screwdriver (the tool, not the drink), a sharp utility knife, and about thirty minutes of pulling out bits of paper, I get it a bit looser.  I figured since the machine got itself into this trouble, let it get itself out.  I start her up, release the auger and out flies shredded newspaper, not unlike the skiier who fell into the bug snowblower in James Bond's "On Her Majesty's Secret Service."

I get the driveway done, a couple of hundred feet of walk, and figure I'll do the paver walks and patio in back so the dogs will have a place to run around other than the deep snow.  While going along the sitting wall, the machine (apparently still hungry after eating the paper) scoops up about sixty feet of previously unseed low voltage wire.  This time the machine just snaps the wire and keeps running but I stop to look.  There it is, wrapped around the auger.  Off it comes, and blowing continues with no more events.  Overall, a good day.

* * * * *

I'm kind of glad I didn't clear the driveway because when I wake up, there's twice as much snow and all of the dirves that were cleared are once again, covered.  So, I go out, spend ten minutes trying to fire up the Toro before I realize I have the fuel shut-off valve on "off."  I turn it on and the 'Ol Tec starts with one pull. 

The snow is around fifteen inches deep but some drifts were three to four feet and the EOD was about three feet of pretty heavily packed snow.  El Toro handles it all in stride until I get to the right side of the EOD when I am immediately reminded of the email I recevied from Toro a while back:

"Toro snow throwers do not have shear pins.  The reason for this is if you hit something while snow throwing, the auger and engine will stop letting you know that something is wrong.  You can then remove whatever it was that you hit, start up the machine, and continue snow throwing.  If the snow thrower had shear pins, they would need to be replaced before starting the snow thrower again."

With all the snow, who expected the paper to be delivered...and the SUNDAY paper at that.  Well, true to Toro's word, the machine ingested the paper and stopped immediatley (I guess the shearless system works).  I didn't even have to look, I knew what had happened.  So, when I gor around to the front, there in all it's shredded glory is the Sunday paper jammed tight between the auger, impeller and housing.  A big screwdriver (the tool, not the drink), a sharp utility knife, and about thirty minutes of pulling out bits of paper, I get it a bit looser.  I figured since the machine got itself into this trouble, let it get itself out.  I start her up, release the auger and out flies shredded newspaper, not unlike the skiier who fell into the bug snowblower in James Bond's "On Her Majesty's Secret Service."

I get the driveway done, a couple of hundred feet of walk, and figure I'll do the paver walks and patio in back so the dogs will have a place to run around other than the deep snow.  While going along the sitting wall, the machine (apparently still hungry after eating the paper) scoops up about sixty feet of previously unseed low voltage wire.  This time the machine just snaps the wire and keeps running but I stop to look.  There it is, wrapped around the auger.  Off it comes, and blowing continues with no more events.  Overall, a good day.

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http://www.abbysguide.com/ope/discussions/4459-0-1.html

LL