Clean- 2.0.0 Less Than 300 Ml Per Minute Collected /Isolate Restrictor #48 - Fresenius Medical Care 2008K2 Troubleshooting Manual

CLEAN- 2.0.0 LESS THAN 300 ML PER MINUTE COLLECTED / ISOLATE RESTRICTOR #48
This procedure attempts to clear a DEAERATION PUMP air lock. First Restrictor #48 is checked to see if it
is plugged:
a) Turn the machine off then back on.
b) Allow the "Select Program" banner to appear but
NOT
select any screen buttons! "Select Program"
INSTRUCTED OTHERWISE!
remains up until
60 ml syringe
c) Figure right, a
fully, is REQUIRED! Using a smaller syringe may cause
error!
d) Attach the syringe to the Deaeration Pump's CLEAR (INPUT) tubing removed earlier.
e) PULL on the plunger to the end of the barrel! If Restrictor #48 is plugged you will feel very strong
resistance and may not be be able to pull the plunger all the way out! Very strong resistance felt?
Yes Very strong resistance! Restrictor #48 is plugged with debris
that contains Restrictor #48*. *To LOCATE Restrictor #48 refer to the Figure, next page!
1
Debris indicates FIVE (5) possibilities: 1) Excessive O-ring lubrication; 2) Inadequate acid
cleaning (bicarbonate precipitate); 3) Inadequately filtered incoming water;
4) Degraded Heater; 5) Degrading Deaeration Pump Head.
NOTE: After the repair (i.e. good loading pressure achieved) see procedure number
CLEAN- 2.4.0
No Very little resistance! See part A below:
A) Remove the syringe and, from the tubing, MEASURE flow for one (1) minute. More than
130 ml collected?
Yes
No Less than 130 ml collected! Perform parts B through D below.
B) Push the plunger back into the barrel then reattach the syringe to the Deaeration Pump's
tubing.
C) Pull on the plunger to the end of the barrel!
D) Repeat parts A through D up to TEN (10) TIMES OR until you MEASURE more than 130
ml in one minute?
Yes More than 130 ml per minute! See procedure number
No
, with its plunger pushed in
(page 171).
More than 130 ml collected! See procedure number
167).
After ten (10) attempts you CANNOT achieve more than 130 ml per minute!
page 169
Proceed to , procedure number
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
DO
1
CLEAN-
. Replace the tubing segment
CLEAN- 2.0.2 (page 167).
CLEAN- 2.0.2 (page
2.1.0.
Page 166