Bad Motor Voltage Measurement/Isolate A 'Binding' Motor; Isolate Bad Motor Voltage - Fresenius Medical Care 2008T Troubleshooting Manual

MOTORS- 4.7.0 BAD MOTOR VOLTAGE MEASUREMENT / ISOLATE A 'BINDING' MOTOR
IMPORTANT! Turn the machine OFF!
a)
b) Figure right, remove the pump head from the NOTED motor to
expose the 'Drive Magnet'.
c) Manually spin the 'Drive Magnet'. Does it rotate freely i.e. is NOT
'binding'?
Yes Rotates freely!
ge 148).
(pa
No Does NOT rotate freely! The motor is bad and brushes won't help.
motor may have damaged the Actuator-Test and/or Power Logic Board!
MOTORS- 4.8.0 ISOLATE BAD MOTOR VOLTAGE
a) Return the pump head to the motor!
b) Figure right, ENSURE the motor is plugged properly into
its CORRECT distribution board position!
c) Swap in the listed components (see COMPONENT LIST
below), one at a time, with known good and in between
continue to parts d and e to test the new component!
COMPONENT LIST: 1) Actuator-Test Board*; 2) Actuator board ribbon cable; 3) Distribution board;
4) Power supply connections.
* To LOCATE the board refer to
d) Return to either RINSE OR Dialysis.
e) Check for motor for rotation to see if the new component causes it to run. If not turn the machine off and
repeat parts c through e until it does run!
See procedure number MOTORS- 4.8.0
Figure 4A (page 10)
LEFT BLANK INTENTIONALLY
2008T Troubleshooting Guide
P/N 490292 Rev. A
CAUTION!
The 'binding'
Page 148