Fresenius Medical Care 4008 HDF User manual

CareFresenius Medical
4008 HDF
Technical Manual

4008 HDF
Technical Manual

Fresenius Medical Care 4008 HDF 3/11.97 (TM) 0-1Part No. 674 398 1
4008 HDF Technical Manual
The Technical Manual contains all information necessary for performing maintenance and repair work.
The 4008 HDF option reflects the latest state of technology and complies with the requirements of
EN 60601-1
Assembly, extension, adjustment, modification or repair may only be carried out by the manufacturer or
persons authorized by him.
Any inquiries should be addressed to:
Manufacturer:
Fresenius Medical Care
Deutschland GmbH
Plant Schweinfurt
Hafenstraße 9
D-97424 Schweinfurt, Germany
Tel.: [phone]
Fax: [phone]
Head office:
Fresenius Medical Care
Deutschland GmbH
Borkenberg 14
D-61440 Oberursel/Ts., Germany
Tel.: [phone]
Telex: 410805 fres d
Fax: [phone]
Local Service:

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Fresenius Medical Care 4008 HDF 3/11.97 (TM) 0-3
How to use the Technical Manual
Search and find What? Where?
Tables Contents Pages 0-5 and at the beginning of each chapter
Purpose This manual is intended for:
– first studies (to acquire basic knowledge)
– reference purposes (for start-up, maintenance and repair)
Organization The manual is divided into 6 chapters:
0 General Notes
1 Description of machine functions
2 Technical safety checks
3 Calibration instructions
4 Circuit descriptions and circuit diagrams
5 Spare parts
Numbering system Page number 1-3 is to be interpreted as: Chapter 1, Page 3
Qualification This manual is intended for service technicians
– who are familiar with the current Operating Instructions (Operating Instruc-
tionseratiningtothisTechnicalManualareavailableunderpartno.6744061)
– who have the necessary background experience in mechanics, electrical and
medical engineering
– who have been authorized by the manufacturer to perform maintenance and
repair work
– who have access to the necessary auxiliary and measuring equipment
Restrictions The study of this manual does not represent an alternative to the training courses
offered by the manufacturer.
Manual changes Manual changes will be released as new editions, supplement sheets or product
information.
Note:
Modifications relating to circuit diagrams and component layouts (SP/BP) do not
necessarily involve a change of the footer (edition).
Refer to the index field of the respective circuit diagram or component layout for
the respective state of these diagrams. The identification on the P.C.B. permits
the user/technician to verify if the circuit diagram / component layout matches the
P.C.B. actually installed.
In general, this manual is subject to modification.

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Representation New circuit symbols are used in the circuit diagrams. Potential data given in the
circuit diagrams and setting instructions refer to the respective earth.
For example: 24 means ground for 24 V voltage.
Component marking Example:
in circuit diagrams
This refers to a resistor with a position number 75 with a resistance of 1.5 Ohm.
Thedecimalpointisreplaced byaunit symbol(toreduce thepossibilityof errors).
Resistors: Capacitors:
R1: 0.1 Ωµ1: 0.1 µF
1R5: 1.5 Ω1µ5: 1.5 µF
1K5: 1.5 kΩ1000µ: 1000 µF
Note: When repairing or exchanging replacement parts make sure to take the applica-
ble ESD precautions (e.g. EN 100 015-1).
During repair/troubleshooting in the hydraulic unit, protect the components from
dialysate.
Technical data: The technical data for the 4008 HDF option is to be found in Chapter 1 of the
Operating Instructions.
75
1R5

Fresenius Medical Care 4008 HDF 3/11.97 (TM) 0-5
Table of contents
Section Page
1 Description of machine functions............................................................................... 1-
1.1 Description ...................................................................................................................... 1-3
1.2 Description of extended T1 test ...................................................................................... 1-8
1.3 Error messages............................................................................................................... 1-10
2 Technical safety checks............................................................................................... 2-
3 Calibration instructions ............................................................................................... 3-
3.0 General information on the calibration instructions ....................................................... 3-3
3.1 Calibrating the UF2 pump............................................................................................... 3-5
3.2 VDE inspections.............................................................................................................. 3-7
3.3 Calibrating the 4008 HDF scale...................................................................................... 3-8
3.4 Calibrating the substituate sensor .................................................................................. 3-13
3.5 Calibrating the HDF blood pump .................................................................................... 3-15
3.6 Repair instructions .......................................................................................................... 3-17
4 Circuit descriptions and circuit diagrams.................................................................. 4-
4.1 LP 625 display board ...................................................................................................... 4-3
4.2 LP 754 control board HDF .............................................................................................. 4-9
4.3 LP 760 HDF motor control .............................................................................................. 4-19
4.4 LP 761 HDF drive keyboard ........................................................................................... 4-27
4.5 LP 762 scale comm ........................................................................................................ 4-33
4.6 LP 763 SSE serial interface extender............................................................................. 4-39
5 Spare parts .................................................................................................................... 5-
5.0 How to use the spare parts catalog ................................................................................ 5-3
5.1 P.C.B.s............................................................................................................................ 5-4
5.2 Scales ............................................................................................................................. 5-6
5.3 Substituate lift ................................................................................................................. 5-8
5.4 UF2 pump / blood pump (HDF) / valve V 126................................................................. 5-10

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Fresenius Medical Care 4008 HDF 3/11.97 (TM) 1-1
Table of contents
1 Description of machine functions
Section Page
1.1 Description .................................................................................................................... 1-3
1.1.1 Components.................................................................................................................... 1-3
1.1.2 Description ...................................................................................................................... 1-3
1.1.3 Component tests............................................................................................................. 1-3
Fig.: Block diagram ......................................................................................................... 1-4
Fig.: Flow diagram .......................................................................................................... 1-5
Fig.: Flow diagram .......................................................................................................... 1-6
1.2 Description of extended T1 test / error messages in T1 test................................... 1-8
1.2.1 Test UF-Function ............................................................................................................ 1-8
1.3 Error messages during treatment and the HDF test ................................................ 1-10
1.4 Error messages, substituate pump............................................................................. 1-13

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