ST724 seems weak - Snowblower Forum : Snow Blower Forums
 
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post #1 of 6 Old 12-18-2019, 01:13 AM Thread Starter
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ST724 seems weak

So I bought an ariens 724 this summer for 50 bucks knowing my mtd 10.5 horse was already past it's expiration date. I know it's only 7 horse but I went to use it last week and the engine runs awesome...1-2 pulls of the choke pretty quick... No surging... It's pretty awesome... But it just didn't seem to throw snow. I'm thinking maybe it's stretched belts. How do you check for this other than running it under load and seeing if the auger shows down.
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post #2 of 6 Old 12-18-2019, 01:21 AM
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you can take the cover off the belts and see how they look when you engage them with the engine off. should be nice and tight. usually a spring at the end of the cable to allow you keep the belt tight but not too tight when you pull on the handle.

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post #3 of 6 Old 12-18-2019, 02:18 AM
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If you positively want to know if the belt is holding
Remove spark plug wire.
Remove belt cover.
Jam the impeller through the chute opening with a block of wood.
Clamp down the lever on the handlebars for the auger impeller.
If you have a torque wrench ... Put it on the crank nose bolt.. turn in the direction of running rotation.
These little engines have only a few pounds of torque.. so it the belt holds 15 ft pounds or so you are good for substained operation..it may slip a little upon first engagement while it brings the impeller and auger up to speed.
Also check for a worn belt.. which will sit down to far in the pulley.. with that small pulley on the crank.. you will lose noticable impeller rpm.
Another way to check for slippage with a heavy load.
Cold engine.
Remove belt cover
Start engine and put under heavy snow load immediately for about 30 seconds to a minute.
Shut off engine..if the pulley has warmed up in that short of time..belt is slipping

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Last edited by Shovel; 12-18-2019 at 02:25 AM.
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post #4 of 6 Old 12-18-2019, 08:18 AM
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Quote:
Originally Posted by Shovel View Post
If you positively want to know if the belt is holding
Remove spark plug wire.
Remove belt cover.
Jam the impeller through the chute opening with a block of wood.
Clamp down the lever on the handlebars for the auger impeller.
If you have a torque wrench ... Put it on the crank nose bolt.. turn in the direction of running rotation.
These little engines have only a few pounds of torque.. so it the belt holds 15 ft pounds or so you are good for substained operation..it may slip a little upon first engagement while it brings the impeller and auger up to speed.
Also check for a worn belt.. which will sit down to far in the pulley.. with that small pulley on the crank.. you will lose noticable impeller rpm.
Another way to check for slippage with a heavy load.
Cold engine.
Remove belt cover
Start engine and put under heavy snow load immediately for about 30 seconds to a minute.
Shut off engine..if the pulley has warmed up in that short of time..belt is slipping

Sent from my LM-Q710.FG using Tapatalk

Awesome suggestions !



Guess we can apply this to the traction belt also, huh ?
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post #5 of 6 Old 12-18-2019, 11:56 AM
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Marc, welcome to the SBF from Gettysburg...

Perpetual optimism is a force multiplier!!
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post #6 of 6 Old 12-18-2019, 12:30 PM
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Quote:
Originally Posted by RIT333 View Post
Awesome suggestions !



Guess we can apply this to the traction belt also, huh ?
Traction belt
Just put the machine on dry concrete.
Put the ground speed selector to its fastest position.
Hang on tight...push down on the clutch handle..she will either spin the tires or you won't be able to hold it back if nothing is slipping



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