Re: one side of my ARIENS ST928 SNOW BLOWER doesn't work
Most likely you have a broken shear pin. Look on the side that works, there should be a bolt or pin through it. The side that is not working is probably broke off. Find the hole in the auger and line it up with the inner shaft and replace with proper shear pin/bolt. Shear bolts can be obtained from most outdoor power equipment shops. I do not suggest replacing with standard bolt as it can cause damage to you gear box it auger gets jammed.
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Does it have steering control triggers to turn it left or right...if so hold both at the same time with engine off and see if you can push it..Let me know if that works. Or let me know what kind of controls you have
Your problem would be in a safety shutdown switch.
some Ariens blowers have a two handed safety switch whitch is located on back of blower right lower side (inside of body)
You have to remove 4 transmission pan bolts to see it.
The other location is under the metal face plate between the handle bars.
Some of them have a third handel on right side of handle bars that has to be depressed to run auger .
Many snowblowers use pins (or bolts - see image below) that pass thru the shoulder of the rim of the tires thru a hole drilled thru the drive shaft. Removing both of the pins allows the tires to spin freely on the drive shaft and makes it much easier to push, pull and turn the snowblower. If they are not installed again, the machine will not "drive" and make clearing snow difficult to do. Installing only one will make the machine want to go in circles. Make sure you have these pins installed thru BOTH rim shoulders and drive shafts - locked in place. Other machines lock the tires in other ways - since it sounds like one side is working correctly - you should compare the two tires / rims and make them both look like the one that works properly. Good luck!
first check shear pins in the auger ( try to turn big auger by hand, engine off)
then if they are good then try to turn impeller by hand, engine off
youll need to turn it a few times before the larger ones turn, but thats what you want
if they dont turn then you have sheared the gear box gears
be sure belts are good tooo
The most common cause of this is the drive belt is worn. If you remove the cover (usually plastic) in the middle of the snow thrower and look at the belt closest to the blower assembly. This is the blower drive belt. (Your operators manual will show you the location and how to remove the cover if you are unfamiliar with your snow blower) With the engine not running, have someone depress the drive lever and check the belt. You should only be able to depress the long side 1/2 inch or less. More than that the belt has stretched and needs to be replaced. On some older blowers you can adjust the tension pulley, but most made in the last 15 years, you can't. The belt may be frayed on the edges or glazed causing it to slip (it is shiny on the sides of the belt) You can get parts (the new belt) through your local Ariens dealer or jackssmallengines.com Feel free to ask any other questions. I know Snow Blowers. Please remember to rate this answer!
Looks to me like your second stage is not working. If the auger is turning fine, look and see if the secondary thrower is turning. Probably a shear bold on one or the other is broken. Easy fix, but do not put your hands in there when the machine is running!