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REBUILD INSTRUCTIONS FOR BLOOD PUMP WITH
1. PURPOSE:
To outline the process of removing and reinstalling the tachometer assembly in order to access the
motor brushes on a 2008
2. TOOLS REQUIRED:
• T-20 Torx Screw Driver
• T-25 Torx Screw Driver
3. PROCEDURE:
Caution: Care must be taken when handling circuit boards to prevent damage by ESD
(Electrostatic Discharge). Use appropriate ESD precautions when handling electronic
components.
Blood Pump Preparation
1.
Remove the module from the machine; unplug the module ribbon cable(s) from the LP955
and the ESD ground wire from the module face plate.
2.
Lay the module face down on an ESD protective surface.
Removable Tachometer Identification
In order to rebuild a 2008
Figure 1 shows how to make the distinction between the two types. If the tachometer is not
removable, the blood pump motor cannot be rebuilt.
A Hood with only
one screw is not a
removable type.
Non-Removable Tachometer
(Brushes Not Replaceable)
Note: A non-removable tachometer blood pump can be converted by replacing the
motor/gearbox assembly with P/N M49706.
REMOVABLE TACHOMETER
®
Series Arterial Blood Pump with a removable tachometer.
®
Series Arterial Blood Pump, the tachometer has to be the removable type.
Figure 1
P/N 490351 Rev. A
• #2 Phillips Screw Driver
• Marking Pen
A Hood with
two screws is a
removable type
Removable Tachometer
(Brushes Replaceable)
Page 1 of 6
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Related Manuals for Fresenius Medical Care 2008 Series
Summary of Contents for Fresenius Medical Care 2008 Series
- Page 1 REBUILD INSTRUCTIONS FOR BLOOD PUMP WITH REMOVABLE TACHOMETER 1. PURPOSE: To outline the process of removing and reinstalling the tachometer assembly in order to access the ® motor brushes on a 2008 Series Arterial Blood Pump with a removable tachometer. 2.
- Page 2 REBUILD INSTRUCTIONS FOR BLOOD PUMP WITH REMOVABLE TACHOMETER Tachometer Assembly Part Identification Decoder Wheel Base Plate Hood Screws Tachometer Assembly Removal Using a T-20 Torx Screw Driver, remove the two screws holding the Hood and Base Plate to the motor housing (Figure 2) Figure 2 Once the screws have been removed, both the Hood and the Base Plate can be removed.
- Page 3 REBUILD INSTRUCTIONS FOR BLOOD PUMP WITH REMOVABLE TACHOMETER Motor Brush Replacement Preparation Using a marker, make marks on the motor housing and motor end caps (Figure 4). These marks will ensure the correct alignment when reassembling the motor case. Figure 4 - Motor/Gearbox Assembly with marks. Using a T-25 Torx Screw Driver, remove the two screws holding the motor cap to the motor housing.
- Page 4 REBUILD INSTRUCTIONS FOR BLOOD PUMP WITH REMOVABLE TACHOMETER 13. Slide the Decode Wheel on the motor shaft until it touches the Base Plate “leg” (Figure 6). Figure 6 Note: Prior to installing the Base Plate, be aware of the small alignment post on its underside.
- Page 5 REBUILD INSTRUCTIONS FOR BLOOD PUMP WITH REMOVABLE TACHOMETER 15. The Base Plate is properly positioned when the decoder wires are aligned with the motor wires (see arrow in Figure 9). Figure 9 16. Place the Hood onto the Base Plate and align the mounting holes with the threaded screw holes in the motor end plate.
- Page 6 20. Clear all blood alarms and start the blood pump if it is not already running by pressing the key on the blood pump. Start/Stop Verify no alarms or error codes displayed on the blood pump. © 2019, Fresenius Medical Care North America. All rights reserved. P/N 490351 Rev. A Page 6 of 6...
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