If it makes you feel better, I think a cast iron case is ridiculous and doesn't really address any specific need. Planes all over the world fly and work with many and various stressed and loaded aluminum parts. Everyone got excited about cast iron because we think cooking on it is manly and Ariens (being the crafty and wise marketing types they are) decided that cast iron will make it stronger.Mine will stay where I point it using the hand crank. The trigger controls basically unlock the drive wheel depending on which one you pull....for instance, pulling the right trigger stops the right wheel from "driving" and the left wheel keeps going to make the turn. You can pull the trigger for a few seconds and let it slowly turn...not sure you can do a long arc other then that. I was not impressed with the Ariens turning system.....too many people are fighting the machine because any inconsistency in the drive (crack etc) caused it to want to turn. Hope this helps.....
Forgot to mention, I believe the Cub has a 5 year warranty......the gear case is aluminum and some don't like that......as long as it has a warranty I think it is fine. Besides aluminum dissipates heat faster.....if it heats up I guess? LOL
Materials used mean a LOT! very very much..The point being that the materials used mean nothing
Agreed. Well stated, Scot.I completely disagree with the previous post..especially:
Materials used mean a LOT! very very much..
I bet if we could access repair records for all styles of gearboxes, you will find a MUCH higher percentage of chewed up aluminum gears versus cast iron gears.
Mag is correct that aluminum gears are not necessarily *bad*..if well cared for.
But I think its completely untrue to suggest that "all materials are equal"..That is very obviously not true. Its simply a fact that some materials are stronger than others..and some gearboxes are more robustly built than others..that cant be denied.
If you choose to buy a "less robust" machine, thats your choice..and you might have good luck with it for many years..but dont believe that all manufacturers are equal, and all gearbox
types are equal..that is very obviously not true.
I think the discussion here is on aluminum cases and has nothing to do with the gears inside. If the gears inside are well lubricated and of sufficient quality the case material doesn't matter too much. Yes, I have seen one aluminum MTD case cracked on youtube, but that was due to improper shear pins being used.
You are far more likely to have issues with the gears inside than you are with the case.
The case iron is heavier so it could make the machine hold down better in heavy snow though.
Your Tecumseh engines are made out of aluminum. Does that make them less desirable on your older machines? Do the aluminum cases just fail on their own or is there only an issue when something else happens like the rod breaks?