Fresenius Medical Care 2008K Troubleshooting Manual page 58

F- 16.0.0 ELIMINATE POTENTIAL AIR LOCK
With Dialysate flow REMAINING off (Dialysate Flow on/off LED blinking):
60 ml syringe
a) Attach an empty
draw water out of chamber D. NOTE: When released, if (and ONLY if) the plunger returns strongly
restrictor #48 may be plugged with debris!
b) Remove the syringe push the air out, then repeat parts a - b. After no more than ten attempts are you able
to achieve continuous flow of 60 ml (or greater) in 30 seconds?
Yes a) An air lock was present. Re-attach the deaeration pump's tubing.
b) Turn Dialysate Flow ON (Dialysate Flow on/off LED off) and allow one minute for loading
pressure to return.
c) If necessary, adjust loading pressure valve #65 per
unable to achieve good loading pressure return to procedure number
d) If an air lock reoccurs in the near future see procedure number
No See procedure number
F- 16.0.1 HYDRO BLOCK OR CHAMBER?
With Dialysate flow REMAINING off, referring to
machine is equipped with the New Style Hydro Chamber or Old Style Hydro Block.
Old Style Hydro block: See procedure number
New Style Hydro chamber: See procedure number
F- 16.0.2 CHECK RESTRICTOR #48 (OLD STYLE HYDRO BLOCK)
a) Clamp the vent tubing (see
b) Referring to Figure 27
be replaced during Annual Preventative Maintenance. Broken o-rings cause debris!
c) Inspect the restrictor opening. Stick a small probe through it. Is it plugged?
Yes Clear the debris
three minutes to remove a potential air lock.
No See procedure number
1
Recurring debris may indicate: 1) 'Rod baffle' degradation in chamber E (see
2) Excessive o-ring lubrication at the restrictor o-rings; 3) O-ring debris (if the restrictor o-rings are/were
broken); 4) Inadequate acid clean cycles (causing excessive bicarbonate precipitate); 5) Inadequately
filtered incoming water.
F- 16.0.3 CHECK RESTRICTOR #48 (NEW STYLE HYDRO CHAMBER)
a) Clamp the vent tubing (see
b) Referring to Figure 27
#48, a glass segment embedded in the tubing.
c) Attach a syringe to the tubing and push or pull on the plunger. If the plunger resists the restrictor IS
plugged. Is the restrictor plugged?
Yes Clear the debris
three minutes to remove a potential air lock.
No Reinstall the restrictor and see procedure number
2
Recurring debris may indicate: 1) Inadequate acid clean cycles (causing excessive bicarbonate
precipitate); 2) Inadequately filtered incoming water.
to the deaeration pump's tubing then pull on the plunger attempting to
F- 16.0.1 (page 56).
Figure 6, page 13).
(page 54), check or replace both restrictor #48 o-rings (P/N 579070). They should
1
, remove the clamp, reinstall the restrictor, and then rinse the machine for
F- 16.0.5 (page 57).
Figure 6, page 13) externally and at the tee back to the hydro chamber.
(page 54), remove both sides of the external clear tubing, that contains restrictor
2
, remove the clamps, reinstall the restrictor, and then rinse the machine for
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 1 – Flow Errors In Dialysis Program
Table 1
Figure 27 (page 54), how to proceed depends on if the
F- 16.0.2 (page 56).
F- 16.0.3
F- 16.0.5
(page 18). If (and ONLY if)
F- 15.0.0 (page 53).
F- 16.0.1 (page 56).
(page 56).
Figure 28, page 59);
(page 57).
Page 56