Question about Hobart D300 Stand Mixer
The gearing is degreed so if it ran in a reversed mode the gears will bind in a small amount of time. That could lead into a expensive repair. Best to leave it run as it was designed to be ran
Posted on Oct 01, 2010
Whilst devices designed to run in one direction are often done that way for a reason you may be able to fit a phase reversal switch
This takes the positive and negative and by use of a switch swaps them over
Use example number 6 for the concept. Be aware that you are playing with potentially lethal voltage so take the required care !
Also test with only short bursts before running for long perids to make sure the mixer does not have any ANTI REVERSE system installed (not likely but possible)
Also keep the reverse runnin times down to a minimum and monitor motor heat etc.
You can also do this with a suitable contactor for industrail voltages and maybe add "de-bounce" components to ai switching. avoid rapid switching without de-bounce
Posted on Sep 30, 2010
You do not really need to mess with the gearbox.Do you have it apart?All it should require is 2 wires,the same thickness as what is hooked up from motor to switch or larger,and a 3 position switch(1 off position and 2 on positions).If you are in USA you can call me at 727-584-2554 anytime after 10AM until about midnight.It would be much easier to describe and explain and exchange information.Greg
Posted on Sep 29, 2010
I couldn't find any report of anyone having done this, but I know a way that would work, possibly, but I'm not sure what would be required for the modification. A motor has to run the gear assembly, so the easiest way to modify the gearbox to run in reverse would be to make the motor that runs it switched polarity to run it backwards, which, in turn, should run the gearbox in reverse, depending on the ability of the gear teeth to do that without damage. Otherwise, you will have to have essentially two separate gearboxes to engage, but I guess since it's a lab, you could do that. Seems like the logical solution, although might be quite a project.
Anyway, those are my thoughts, however, not having the machine in front of me, I'm just taking the obvious guesses.
Posted on Sep 29, 2010
This mixer's gearbox is definitely not made to operate that way, and it is inadvisable for you to try to do so. Noone will be able to tell you that information, as I can't imagine too many people in the world have ever tried to modify the gearbox in this method.
Posted on Sep 28, 2010
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Posted on Jan 02, 2017
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