Motors- 4.5.0! Empty = 1/Isolate Motor Brush Connection - Fresenius Medical Care 2008K2 Troubleshooting Manual

MOTORS- 4.5.0 ! EMPTY = 1 / ISOLATE MOTOR BRUSH CONNECTION
a) UNPLUG the NOTED motor from the distribution board!
b) Using a flashlight, check inside the motor's distribution board position for 'white' corrosion or damaged
male pins. Damage indicates the distribution board may need to be replaced!
c) Figure right, remove the plastic cap from the female
distribution connector.
•
If the NOTED motor is the Deaeration Motor it
MUST be connected between pins 1 and 3 i.e. top
and middle
•
If the NOTED motor is the Flow Motor, it MUST be
connected between pins 1 and 5 i.e. top and bottom.
d) Set your CALIBRATED voltmeter to
e) Touch the meter's leads together. The meter MUST read less than 0.4
subsequent measurement.
Measure, INSIDE the female connector, BETWEEN the soldered terminals. Less than ten (10) Ω?
f)
Less than 10 Ω! See procedure number
Yes
More than 10 Ω! Bad brushes or motor.
No
RESISTANCE (Ώ)
MOTORS- 4.6.0
LEFT BLANK INTENTIONALLY
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
.
Ω
! Subtract this from the
(page 136).
Page 135