Support / FAQs / About techtown

Home Forums Dish and Warewashing Hobart C44AW dishwasher issue Reply To: Hobart C44AW dishwasher issue

  • ectofix

    Member
    February 25, 2020 at 5:52 pm

    REGARDING THE CONVEYOR MOTOR:

    Without looking at a parts manual for the setup, my memory thinks that earlier C-Line A machines had the conveyor motor mounted onto a movable platform and held in position by spring tension. If the conveyor jammed for some reason and overcame that spring’s tension, the conveyor motor’s mount platform would shift and trigger a microswitch to disable the conveyor contactor. This, of course, was designed to prevent damage to the machine.

    Later models C Line A machines (before that line was discontinued) incorporate a new circuit board mounted vertically on the back wall of the control box. The conveyor motor’s drive hub had radially-mounted magnets which passed in close proximity to a component looking like a Reed switch, but is actually a hall effect sensor. So, sort of a crude pulse generator tied into that new circuit board. As such, if the speed of the motor slowed for some reason, that circuit board would disable the conveyor motor contactor. So…an electronic version of a jam safety circuit.