Your troubleshooting tests allude to Ruby having suffered a shift in its ability to accurately assess main brush running current. Measurement of motor current is accomplished on the main_PCA via certain circuits and the MCU + firmware.Marshtown wrote:...What next please?
If you need help parsing those records, just say so. It is unfortunate that iRobot people made two engineering errors in they way those data are expressed.Service Manual wrote:SUMMARY: (main-brush-motor-stall?) PASS
SUMMARY: (main-brush-current-ok?) PASS mA -283 min -500 max -200 mV 15947degrees-C 37
SUMMARY: (main-brush-stall-current-ok?) PASS mA -1338 min -1400 max -1250 mV 15892 degrees-C 37
Jubo wrote:You mentioned yellow end cap, how about the yellow bearing?
They are called "bearing" because sleeve-bearings, or bushing style bearings support one end of both main brushes.iMayne wrote:... But I don't know why iRobot uses the word "bearings".
...IF they had been worded this way:vic7767 wrote:...There are no bearings used on the two cleaning brushes in the brush deck component of the Cleaning Head Module. There are two brass bushings installed in the "Yellow End Caps". ...
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