Fresenius Medical Care 2008K2 Troubleshooting Manual page 560

5) IF from RINSE PORT tubing: Secure tubing connections with tie wraps.
6) Per Figure 105 B (page 557), IF from Regulator #61 OR Valve #41 (not including the Heat
Exchanger): A) Ensure incoming water pressure is not exceeding 100 psi; B) Check Inlet Water
Pressure Regulator per the CALIBRATION PROCEDURES booklet; C) Check tubing connections tie
wraps or replace tubing; 4) If Valve #41 is leaking externally the tubing connection, O-ring, or the valve
body may be cracked.
7) Per Figure 105 A (page 556), IF from Valve #39: A) Check the tubing connection; B) Possible bad
O-ring between the valve and the Hydrochamber; C) The valve body may be cracked.
8) IF from the Acid or Bic pump reinforced (output) tubing: Secure tubing connections with tie wraps.
9) Per Figure 105 A (page 556), IF between Deaeration Pump #20 and the Hydrochamber including
Mixing Chambers #82: Secure tubing connections with tie wraps.
10) Per Figure 105 C (page 557), IF between BOTTOM BALANCING CHAMBER VALVES, #35 / #37 and
the Hydrochamber: A) Secure tubing connections with tie wraps; B) Possible bad O-ring between the
valve and the balancing chamber; C) A valve body may be cracked.
11) Per Figure 105 C (page 557), IF between TOP BALANCING CHAMBER VALVES #32 / #34 and the
HEAT EXCHANGER: A) Secure tubing connections; B) Possible bad O-ring between the valve and
the balancing chamber; C) A valve body may be cracked.
Figure 105 A – Various Hydraulic Views
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
Page 556