The auger blade assembly right is the steel flighting for the right hand half of a two stage auger, stock number 303180409. It is a handed part, and the single mistake worth preventing is ordering or fitting the wrong side. A auger blade assembly right is the subject of this page, and the notes below are specific to it.
On this page
What this auger blade assembly right is for
A two stage auger does not just chop snow. It has to move snow inward, from both ends of the housing toward the impeller opening in the middle, and it has to do that while turning in one direction only.
The only way to achieve that is with two spirals of opposite hand, one on each side of the gearbox. The auger blade assembly right spirals one way and its left hand partner spirals the other, so a single direction of rotation pushes snow from both ends toward the centre. It is the same principle as a two start screw conveyor feeding a central discharge.
That is why handedness is not a detail. Fit a right hand flighting where a left belongs and that half of the auger drives snow outward, packing it hard against the end plate instead of feeding the impeller. The machine appears to run, throws poorly, and jams constantly at one side.
Specifications
| Specification | Detail |
|---|---|
| Stock number | 303180409 |
| Part type | Auger flighting, right hand |
| Construction | Welded steel |
| Machine type | Two stage |
| Handed | Yes, will not substitute for the left |
| Fixed by | Shear pins to the auger axle |
Identifying which side you need
Stand behind the machine as if operating it, in the position you would push from. The auger blade assembly right is the flighting to your right hand side of the gearbox.
That sounds obvious and it is where people go wrong, because parts diagrams are usually drawn from the front of the machine, which mirrors everything. If you are reading a diagram, check whether it is a front or rear view before deciding which side is which.
The physical check is better than either. Look at the spiral and follow it with a finger from the outer end toward the gearbox. On the correct part, with the auger turning the way it does in use, that spiral pushes material toward the centre. Do this with the old part in your hand before ordering.
When an auger blade assembly right needs replacing
Steel auger flighting is not a wear part in the way rubber paddles are. It usually outlives everything around it. Three things genuinely finish it.
Impact damage. Meeting a buried object at speed bends the flighting out of its spiral. You see it as a section that no longer matches the sweep of the rest.
Corrosion through. Years of salt and standing water thin the steel, usually at the welds first. Once the flighting is perforated it flexes under load and tears.
Elongated shear pin holes. Repeated impacts oval the holes where the flighting pins to the shaft, and once they are no longer round the pin cannot shear at its designed load. That leaves the gearbox unprotected, which is a far more expensive problem than the flighting.
Ordinary rust on the surface is cosmetic. Do not replace an auger blade assembly right for appearance alone. Our snow blower repair guide covers judging the difference, and CSA Group sets the safety standards these machines are certified against.
Fitting the auger blade assembly right
Disconnect the power first. The flighting normally pins to the auger axle with shear pins, so the job is to drive out the old pins, slide the flighting off the shaft and reverse the process.
Expect the old flighting to be seized to the shaft by corrosion, because that joint spends its life in salted meltwater. Penetrating oil and time work better than force. Heat is a last resort and it is easy to distort the flighting with it.
Before sliding the new auger blade assembly right on, clean the shaft properly and put a smear of anti seize on it. That single step is what makes the next replacement possible without cutting. Line up the pin holes, fit genuine shear pins, and turn the auger a full revolution by hand to confirm nothing fouls the housing.
Parts to order with the flighting
Two things belong in the same order as a flighting replacement.
Auger Blade Assembly Right: a different right hand flighting at a different price, so confirm which one your machine takes before ordering.
Dowel Pin (Elastic cylindrical pin ): always fit genuine shear pins, and always replace them when the flighting comes off.
Common questions
Can I fit the right auger flighting on the left side?
No. The two sides spiral in opposite directions so that one rotation feeds snow inward from both ends. Fitted on the wrong side it drives snow outward and packs it against the end plate.
How do I tell which side I need?
Stand behind the machine in the operating position. The right hand flighting is on your right of the gearbox. Be careful with parts diagrams, which are usually drawn from the front and mirror everything.
Is surface rust a reason to replace flighting?
No. Surface rust is cosmetic. Replace it for impact damage that has bent the spiral, perforation through the steel, or shear pin holes that have gone oval.
Why does my machine jam at one end of the housing?
If it started after a flighting replacement, the wrong hand was almost certainly fitted. If it has always done it, look for bent flighting from an earlier impact.
Do I need new shear pins when changing flighting?
Yes. Refit genuine shear pins every time. They are designed to break so that the shaft and the gearbox survive an impact.
Is stock 303180409 the same as 303180424?
No. They are different right hand flighting parts at different prices. Match on the stock number for your machine rather than assuming they interchange.
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