Fresenius Medical Care GranuFlo Dissolution Unit II - 8.4.1 Filter Removal and Replacement; 8.5 Sensor Replacement

M A I N T E N A N C E Continued
26 P/N 450368 Rev I
8.4.1 FILTER REMOVAL AND REPLACEMENT
Ensure the Mixing Tank is empty, and that power to the GranuFlo Dissolution Unit II is OFF, and
the Main Transfer Ball Valve is CLOSED. Follow Figure 19: Steps A, B, C, and D for removal and
replacement of the filter (Figure 19). If the residual fluid in the Filter housing is concentrate, then
place the solution in the Residual Solution Bucket.
Figure 19
8.4.2 BASE STAND PIPE FILTER REMOVAL
Using Base Filter Rod, P/N 260025 (Figure 20A), reach into the tank and connect the small end of
the shaft into the Screw Nut of Base Filter (Figure 20B). Turn the Screw Nut Counter Clockwise
until the Base Stand Pipe Filter is no longer attached to the tank. Use the Base Filter Rod to help
lift the Base Stand Pipe Filter out of Tank. Thoroughly clean off the top of the Pie Plate Filter holes
by running purified water over the filter holes until all debris is removed. Once the Pie Plate Filter
is clean reinstall the Base Stand Pipe Filter.
FIGURE 20
8.5 SENSOR REPLACEMENT
An authorized Fresenius Medical Care Service Technician will replace the existing Sensor with a
calibrated Sensor. Ensure proper concentrate composition after replacement.
NOTE: THE FILTER USED MUST BE COMPATIBLE WITH FRESENIUS MEDICAL CARE DRY ACID PRODUCT AND RATED AT 1 MICRON.
FRESENIUS MEDICAL CARE, PN G84-202-12, IS A POLYPROPYLENE FIBER WOUND ON A POLYPROPYLENE MESH CORE MEETS THESE
REQUIREMENTS. CELLULOSE FILTERS ARE NOT COMPATIBLE WITH THE FRESENIUS MEDICAL CARE DRY ACID PRODUCT.
NOTE: IT IS RECOMMENDED TO REPLACE THE FILTER AFTER MIXING 6 BATCHES OR IF THE TANK REQUIRES DISINFECTION.
NOTE: IF THE FINAL FILL SENSOR NEEDS ADJUSTMENT OR REPLACEMENT, THEN A QUALIFIED TECHNICAL PERSONNEL
SHALL COMPLETE THIS AND THE FOLLOWING TASKS. SAMPLE MUST BE DRAWN FROM THE FIRST BATCH OF
CONCENTRATE MIXED. THIS SAMPLE MUST BE ANALYZED FOR CORRECT SOLUTION MIX BEFORE THE CONCENTRATE
CAN BE USED. BEFORE REPLACING THE FINAL FILL SENSOR OR RELOCATING THE GRANUFLO DISSOLUTION UNIT II
CONTACT FRESENIUS MEDICAL CARE TECHNICAL SERVICE AT 1 (800) 227-2572 AND REQUEST TWO (2) EMPTY
SAMPLE BOTTLES (P/N G83-535-02). SEE APPENDIX C, PAGE 40, FOR FURTHER INSTRUCTIONS.
A. Turn OFF Main Transfer
Ball Valve and Remove Filter
Housing
C. Insert Filter
(P/N G84-202-12)
D. Install Filter Housing onto
the filter holder.
B. Remove Filter
A. P/N 260025, Base Filter Rod
B. Base Stand Pipe Filter Removal