F- 7.3.2 Isolate 'Spent Side' Flow Paths - Fresenius Medical Care 2008K2 Troubleshooting Manual

F- 7.3.2 ISOLATE 'SPENT SIDE' FLOW PATHS

a) Valve connectors will be switched to test 'spent side' flow paths to
drain. A second bucket and the 1000 ml cylinder is required!
b) Figure right, at the rear of the machine, remove the tubing from the
Drain (BOTTOM!) nozzle. Flow from the nozzle will be measured.
Good flow is more than 800 ml per minute!
c) ENSURING "Select Program" REMAINS up, perform BOTH PARTS
3 and 4 EVEN IF PART 3 yields bad flow!
PART 3:
a) Place the second bucket behind the drain nozzle.
b) Plug valve #36 into valve #33's distribution board position, "V33".
c) Watch drain flow (if any) for one (1) minute. If good initially but significantly slows down
indicates an intermittent bad valve #32 or #36. If no flow ENSURE valve #36's
connector is placed properly in position "V33". If okay see part d!
d) Measure flow, into the cylinder, for one (1) minute.
Return valves #36 AND #33 to their distribution board positions.
e)
f) Record PART 3's measurement,
PART 4:
a) Refill the bucket that has the dialyzer connector in it! It MUST NEVER run empty!
b) Plug valve #38 into valve #31's distribution board position, "V31".
c) Watch drain flow (if any) for one (1) minute. If good initially but significantly slows down
indicates an intermittent bad valve #34 or #38. If no flow, ENSURE valve #38's
connector is placed properly in position "V31". If okay see part d.
d) Measure flow for one (1) minute.
e) Unplug valve #38 THEN analyze BOTH Part 3 AND Part 4's measurements per
Table 4
Table 3 – Parts 3 AND 4
PART 3's
measurement
Less than 800 ml
Less than 800 ml
More than 800 ml
More than 800 ml
below:
PART 4's
measurement
Less than 800 ml
More than 800 ml
Less than 800 ml
More than 800 ml
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
THEN perform PART 4!
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F- 7.4.0 (page 78)
F- 7.6.10 (page 84)
F- 7.7.20 (page 86)
F- 7.8.0 (page 88)
Page 76