Uf- 6.0.0 Check Uf Pump Function; Uf- 6.1.0 Strong Pulses/Isolate Uf Pump Consistency - Fresenius Medical Care 2008K2 Troubleshooting Manual

UF- 6.0.0 CHECK UF PUMP FUNCTION

a) Place the machine into RINSE and ENSURE the external
flow indicator's 'bob' is moving up and down.
b) Ensuring NO LEAKS, per the Figure right, remove the
Ultrafiltrate Output Sample Connector from its port to
observe UF Pump output.
c) Are there 'strong individual pulses' through the Fluid Sample
Connector that 'squirts' out at least six (6) feet?
Yes Strong pulses! See procedure number
(page 509).
No Weak or no pulses! Swap in the listed components (see Component List below), one at a time,
and in between, to see if the new component fixes the problem, repeat procedure number
UF- 6.0.0 (page 509).
Component List: 1) UF Pump
board; 5) Motherboard.
1
Without mounting the pump into the hydraulic cabinet YET, plug a known good pump into
distribution board position "P22, UF-P".
2
Turn the machine OFF before swapping in a known good Actuator-Test Board.
3
The cable can be checked. NOTE that four (4) UF PUMP connections will be checked and
proceed to page 521, SECTION 16 - CHECKING THE ACTUATOR BOARD CABLE
UF- 6.1.0 STRONG PULSES / ISOLATE UF PUMP CONSISTENCY
a) Place the machine into Service Mode → Calibrate Hydraulics → UF
Pump Volume.
b) Follow the screen's instructions through step #4. The screen's
[Target] box defaults to 24 strokes. DON'T CHANGE IT!
c) Per the Figure right, attach the Fluid Sample Connector to a 25 ml
burette. Ensure the burette's stopcock is OPEN!
d) Press 'Prime' and allow the [Target] box to reach 0.
e) Drain the burette EXACTLY the 25 ml scale mark.
f) REPEAT c through f. Does burette volume read between the 0.9 and
1.1 ml scale i.e. UF Pump delivered between 23.9 and 24.1 ml?
Yes Between 23.9 and 24.1 ml! Proceed to
procedure number
No Referring to
Pump volume. Does it calibrate to between 23.9 and 24.1 ml
after 24 strokes?
1
; 2) Actuator-Test Board
UF- 2.1.0.
Figure 86 (page 505), attempt to calibrate UF
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
UF- 6.1.0
2
; 3) Actuator cable
page 505
,
3
; 4) Distribution
Page 509