On Saturday, February 9, 2013 3:46:48 PM UTC-6, Bob wrote:


Have an Ariens snowblower. Model 7524. Typical 2 stage unit; few years



Drive system to wheels works.

Big Auger wheel in front turns.


But won't throw snow. No clog.


Bob

1st a spring steel roll pin will probably not shear...it could completely rust-out though. There is a lack of tension, a worn belt or tension roller adjustment.
Leave the engine off and spark wire removed; bungee or clamp the auger drive handle and manually try to move the auger. You should not be able to move it if there is enough tension.
Ariens are an easy/straight forward machine to split the front-end if you need to for a belt change, but you may only need to adjust the length of the cable that engages the tension idler or the pulley idler itself.

I would add the simplest possibility is sheared auger pins and they are not moving snow to the middle for pick-up and are just snug enough to turn when not under load.
HTH