Thank you for contacting the AnswerARMY.
It is upsetting that you have had this experience with your mower.
The wheels are the same for each side, there is no difference on the units I looked up, it is possible there is a tread variation on some of the various models but the gear area is the same.
The gears are intended to be dry, if lubrication is needed use a dry lube such as graphite.
The drive wheels locking up this sounds like the belt is dragging causing the transmission to engage, double check your belt adjustment to make sure the belt does not drag.
The discharge chute should be available for purchase from local dealers, the reason we do not include it is most people mulch. Also using it as a gift once you register is an incentive to the consumer to register the mower.
I had the same problem with a brand new HU725BBC. Here is the fix.
1-remove the rear wheels.
2-remove the gear attached to wheels.
3-put in spacers (washers) between the gear and the wheel.
What this does is position that gear on the wheels closer to the gear they are supposed to mesh with. That is the ONLY fix for an inherent design flaw.
The gear grinding seems to be an issue across other models as well. I just bought an HU800AWD today and had to take the first one back because the two gears weren't meshing at all and were actually slipping! The second one I got was not near as bad until I started mowing with it and I found that at low speeds, it seems to slip like the first one did. Thanks Timothy, I will try the washer trick and see if it helps.
Thank you for contacting the AnswerARMY.
It is upsetting that you have had this experience with your mower.
The wheels are the same for each side, there is no difference on the units I looked up, it is possible there is a tread variation on some of the various models but the gear area is the same.
The gears are intended to be dry, if lubrication is needed use a dry lube such as graphite.
The drive wheels locking up this sounds like the belt is dragging causing the transmission to engage, double check your belt adjustment to make sure the belt does not drag.
The discharge chute should be available for purchase from local dealers, the reason we do not include it is most people mulch. Also using it as a gift once you register is an incentive to the consumer to register the mower.