Siemens Mammomat 3000 Modular Repair Instructions

MAMMOMAT 3000 Modular

Service

Repair Instructions

Replacing the fi lt er asse mbly

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MAMMOMAT 3000 Modular Register 5 SPB7-230.091.08 Page 2 of 4 Siemens-Elema AB Service Rev. 01 03.98 SPS-UD Solna, Sweden

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1 _______Prerequisites __________________________________________________1 - 1

Tools and expendabl es required . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 - 1

Parts required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 - 1

Documents required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

Time required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

Important notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

2 _______Replacing the Filter Assembly____________________________________2 - 1

Registration of X-ray field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1

Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1

Removal of collimator cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1

Removal of lamp holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 2

Removal of diaphragm-plate assembly . . . . . . . . . . . . . . . . . . . . . . . 2 - 2

Removal of old filter assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 4

Installing the new filter assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 4

Reinstalling the diaphragm-plate assembly . . . . . . . . . . . . . . . . . . . . . 2 - 4

Checking the X-ray field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 5

Final procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 5

Adjusting the position of the filter-assembly motor . . . . . . . . . . . . . . . . . 2 - 6

Filter purity verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 7

Evaluation of discrepancies on te st films . . . . . . . . . . . . . . . . . . . . . . 2 - 8

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MAMMOMAT 3000 Modular Register 5 SPB7-230.091.08 Page 4 of 4 Siemens-Elema AB Service Rev. 01 03.98 SPS-UD Solna, Sweden

Prerequisites 1

Tools and expendables required 1

• Standard assembly tools

• Circlip pliers

• Denatured ethanol, 99.5% pure (may only be denatur ed with toluene, which does not

leave any residues when evaporated) for cl eaning the filters or tube window.

• Lint-free cloth or Q-tips (c otton tops) for cleaning

• Lint-free cotton gloves

Parts required 1

• Filter-assembly kit, part n o. 63 43 805 X041E. This kit contains filt er disk with two filters

only, used with MAMMOMAT 3000 with Mo X-ray tube.

Documents required 1

Installation and Start-Up Instructions for MAMMOMAT 3000

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Time required 1

Approximately two hours for one person.

Important notes 1

• The Allen screws can be very hard to loosen . When unscrewing, be sure of enough grip

with the Allen screw-driver, so t hat the screws do not get damaged.

• The filters in the filter assembly must n ot be contaminated in any way. Therefore, alway s

use lint-free cotton gloves dur ing the handling of the filter assembly. Do not remove the filter assembly from its pa cking until installation.

• If the filters have been contaminated, clean by using the specified alcohol. Other types

of solvents may leave residues.

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