Fresenius Medical Care 2008K Troubleshooting Manual page 239

BOTTOM SIDE LEAK PROCEDURE (Valves 35 – 38)
Theory: The following procedure opens the top side valves, one at a time, using 24 volts from valve 30's
distribution board connector. Because the deaeration pump and flow pump are running the bottom valves are
pressurized.
NOTE: Needle nose pliers are required (i.e. do NOT use a plastic clamp) to QUICKLY clamp valve #35's or
valve #37's white tubing. Referring to
bottom).
a) Plug valve #31 into valve #30's distribution board position (V30, DRAIN-V) and watch valve #31's nozzle.
Is a leak seen?
Yes Quickly clamp valve #35's white tubing. If the leak stops replace valve #35. If not, replace valve
#36.
No See part b.
b) Plug valve #32 into valve #30's position (V30, DRAIN-V) and watch valve #32's nozzle. Is a leak seen?
Yes Quickly clamp valve #35's white tubing. If the leak stops replace valve #35. If not, replace valve
#36.
No See part c.
c) Plug valve #33 into valve #30's position (V30, DRAIN-V) and watch valve #33's nozzle. Is a leak seen?
Yes Quickly clamp valve #37's white tubing. If the leak stops replace valve #37. If not, replace valve
#38.
No See part d.
d) Plug valve #34 into valve #30's position (V30, DRAIN-V) and watch valve #34's nozzle. Is a leak seen?
Yes Quickly clamp valve #37 white tubing. If the leak stops replace valve #37. If not, replace valve
#38.
No A balancing chamber valve leak is not obvious using this test. Turn the machine off and
CAREFULLY plug all valves back into the distribution board. Place the machine into Dialysis
Program and perform automated Alarm/Pressure tests.
Figure 98 – Balancing Chamber Valves
Figure 98 (page 237), locate these valves at this time (left side,
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 18B – Manual Balancing Chamber Valve Leak Tests
Page 237