Tmp- 4.2.0 Isolate Secondary Circuit; Tmp- 4.3.0 -250 Leaking/Isolate Dialysate Lines - Fresenius Medical Care 2008K2 Troubleshooting Manual

TMP- 4.2.0 ISOLATE SECONDARY CIRCUIT

a) Open the shunt door to close valve #24 and #25. This isolates the external dialysate lines (see
71 C (below)).
b) Attempt to achieve -250 mmHg then clamp the syringe tubing. Can you achieve -250 and HOLD it
(+/- 15 mmHg per minute) now?
Yes -250 mmHg achieved and HOLDS! Proceed to
No -250 cannot be achieved and / or held! See procedure number
Figure 71 C - Isolation Area
(excludes dialysate lines)
TMP- 4.3.0 -250 LEAKING / ISOLATE DIALYSATE LINES
a) Trace the to and from dialyzer lines to where they attach to the rear
of the machine.
b) INSIDE the machine, clamp the clear (non-braided) tubing, at BOTH
dialysate line connectors.
c) Can you achieve -250 mmHg and HOLD it (+/- 15 mmHg per minute)
now?
Yes -250 mmHg achieved and HOLDS!
procedure number
No --250 cannot be achieved and / or held! FIVE (5) possibilities, 1) Leaking dialyzer quick
connectors and/or O-rings; 2) Leaking external flow indicator fittings; 3) Leaking optional
fluid sample port; 4) Leaking dialyzer line connections at the rear of the machine;
5) Leaking external dialysate line filter O-ring/housing.
IMPORTANT!
TMP- 4.4.0 (page 468).
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
page 468
, procedure number
TMP- 4.3.0
Remove the clamps then see
Figure
TMP- 4.4.0.
(page 467).
Page 467