Hobart A 200 Mixer
There are four possibilities to look at here. Assuming your mixer has a normal capacitor start motor (older a200's used a different style motor), possibilities are, in order of likelihood:
Motor start capacitor
Start switch (electronic or mechanical)
Motor start winding
The start capacitor is located at the rear of the mixer. Remove the rear cover (4 screws) and pull the cover towards you. Disconnect one wire from the capacitor and test with any multimeter.
The start switch, if electronic, is able to be tested, but not very easily. Once you've eliminated the other possibilities, it's time to replace the (electronic) start switch. If the motor has a mechanical start switch, it's easy to test: Remove the two wires at the rear of the motor and test for continuity with the motor stationary. A multimeter should show near zero ohms for a good mechanical start switch.
Burned wiring should be easy to spot with some careful inspection around the motor, capacitor, and start switch.
Start winding: Look closely at the stator (stationary part of the motor). If some of the copper windings look significantly darker in color than the others, it's likely the start windings were overheated (the start windings are the thinner copper wires - if you look closely, approximately half of the wires are thinner than the other half). Look for a wiring diagram behind the power switch and determine which wires leading to the start switch and/or capacitor are for the start windings and test for continuity across the start winding. You should read a fairly small value such as 5 - 15 ohms. Values significantly outside this range could indicate a partially open or partially shorted start winding.
Jun 09, 2010 |
Hobart A200 Stand Mixer