Ever since I have gotten my round back Snow Caster I get a build up of snow around the gearcase which I don't think is normal. I try to make sure I lift the snow caster when I reverse so it doesn't catch any snow and drag it into the opening as I am backing up. The snow appears to be getting in from around the chute area where the chute base sits on top of the snow exit flange opening. One thing my snow caster appears to be missing is the sealing ring that is shown in the parts diagram - I assume it got removed at some point before I saw the snow caster. This makes the chute base slightly loose with a bit of up and down movement where it is sandwiched under the top plate. The gear case gets warm over the course of three hours use (long laneway) and as a result the snow that is built up around the gearcase tends to melt and then freeze making the snow build up turn to ice. While it does not appear to be creating a problem with things freezing up around the input or output shafts I decided to see if I could make it so that the snow being thrown up by the two auger paddles would be better sealed off from getting between the chute base and the top flange of the snow exit hole.
I decided to create a sleeve out of sheet metal that I could bolt in the inside of the exit hole and protrude up about 1/2" above the flange so that it would direct the snow upwards into the chute base and out the chute. Shaped the sleeve to conform to the inside of the exit hole and tapered the bottom edge at the front so it does not interfere with the paddles rotating below it and I am hoping it will keep the snow being thrown by the paddles from working its way between the exit hole flange and the chute base and back around the gear case. Drilled three holes at the two sides and the rear to hold it in place and mounted it with three 1/4" diameter bolts as per the attached pictures.
Today it is blustery out and we have gotten about 6" of new snow so far that the wind is playing with so it looks like I will get to try it out tomorrow and see if it improves things by keeping the snow from getting in by the gear case where it is held in by the bottom hitch assembly and building up.
Thought I would do a post on it and see if other snow caster owners have experienced a similar snow build up around the gear case and perhaps a possible cure if they have.