Page 1
Friedrich
MAMMOMAT 1000/3000 Nova
SP
Maintenance Instructions
System
MAMMOMAT 1000/3000 Nova
The protocol SPB7-230.105.02.05.02 is required for
these instructions
Print No.:
Replaces: SPB7-230.101.02.04.02
SPB7-230.101.02.05.02
06134709
© Siemens AG
The reproduction, transmission or use
of this document or its contents is not
permitted without express written
authority. Offenders will be liable for
damages. All rights, including rights
created by patent grant or registration
of a utility model or design, are
reserved.
English
Doc. Gen. Date: 02.06
2002
Page 2
2 Revision / Disclaimer
1Revision / Disclaimer
Document revision level
The document corresponds to the version/revision level effective at the time of system
delivery. Revisions to hardcopy documentation are not automatically distributed.
Please contact your local Siemens office to order current revision levels.
Disclaimer
The installation and service of equipment described herein is to be performed by qualified
personnel who are employed by Siemens or one of its affiliates or who are otherwise
authorized by Siemens or one of its affiliates to provide such services.
Assemblers and other persons who are not employed by or otherwise directly affiliated
with or authorized by Siemens or one of its affiliates are directed to contact one of the
local offices of Siemens or one of its affiliates before attempting installation or service procedures.
MAMMOMAT 1000/3000 Nova SPB7-230.101.02.05.02 Siemens AG
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Table of Contents 3
0 Table of Contents
1 _______ General information______________________________________________ 5
Training. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Required documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Required tools, measurement and auxiliary devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Required lubricants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Text emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Safety information and preventive measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Explanation of abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 _______ System _______________________________________________________ 13
Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3 _______ Column stand __________________________________________________ 17
Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 _______ Compression and system movements _____________________________ 20
Testing the "Compression" function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Testing the "Decompression" function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Travel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Applying oil and grease. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Compression thickness display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Checking miscellaneous system movements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Checking miscellaneous system movements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5 _______ Test exposures ________________________________________________ 25
Evaluating test values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Testing the dose rate control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Testing the radiation field/light field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Testing image quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Evaluating the films . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6 _______ Miscellaneous _________________________________________________ 31
Blocking exposure release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Final tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
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Page 4
4 Table of Contents
7 _______ Changes since the previous version _______________________________ 34
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General information 5
1-
1 General information
1.1 Training
• Self-instruction packet or training workshop and at least 1 installation
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Page 6
6 General information
1.2 Required documents
• Planning Guide SPB7-230.021...
• MAMMOMAT 1000/3000 Nova Wiring Diagrams SPB7-230.051...
• Installation and Start-Up Instructions SPB7-230.033...
• Service Program SPB7-230.114...
• Maintenance Protocol SPB7-230.105...
• Instructions for Use SPB7-230.201...
• Supplement to the Instructions for Use (Stereo) SPB7-230.203...
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General information 7
1.3 Required tools, measurement and auxiliary devices
NOTE
All tools, measurement and auxiliary devices, with the exception of
those marked with "*", are listed in the STC (Service Tools Catalog)
along with their specifications.
• Oscilloscope
• Digital multimeter
• mAs meter
• Service PC with connection cable
• SIB phantom or Normi 7 or 4-cm Plexi or customer phantom*
• Sensitometer/densitometer
• Film pack 24 x 30 or larger
• Cleaning agents* specified in the operating instructions
• Protective conductor meter
• Spring scale 0-20 kp (1 kp increments) with cord*
• Water level
• Spray enamel* according to the PG (to touch up chipped paint)
• Standard installation tools*
• Electric screwdriver* with sockets (recommended)
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Page 8
8 General information
1.4 Required lubricants
• All purpose grease PD2
• Viscogen oil
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General information 9
1.5 Text emphasis
DANGER
WARNING
CAUTION
NOTICE
DANGER indicates that there is an immediate danger of death or
serious physical injury.
¹ n.a.
WARNING indicates that there is a risk of possible death or serious
physical injury.
¹ n.a.
CAUTION used with the safety alert symbol indicates that there is
a risk of slight or moderate physical injury and/or damage to property.
¹ n.a.
NOTICE used without the safety alert symbol indicates that
non-compliance may cause a situation leading to an undesirable
result or state other than death, physical injury or damage to property.
¹ n.a.
NOTE
NOTE contains information provided with special emphasis to facilitate proper use of the equipment or proper execution of a procedure, i.e. hints, tips.
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Page 10
10 General information
1.6 Safety information and preventive measures
NOTE
• When completing repair work and tests, please note:
- the product-specific safety information in the document,
- the safety information in TD00-000.860.01... ,
• When the system is switched off via the operating panel or
S2/D711, line voltage is still present at the line voltage connection for the generator, at line voltage filter Z1, at transformer T1,
at transformer T10, and on board D711 (refer to circuit diagram).
• After switching off the system, approximately 380 V DC may be
present in the intermediate circuit as indicated by the V24 LED
on board D710. Within 3 minutes, the voltage will drop to less
than 30 V, and the LED will go out.
• Tests or adjustments that must be made with the radiation
switched on are identified by the radiation warning symbol.
During these types of adjustments, radiation protective clothing must be worn.
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General information 11
1.7 Explanation of abbreviations
Abbrev. Explanation
SI Safety Inspection
SIE Safety Inspection, Electrical
SIM Safety Inspection, Mechanical
PM Preventive Maintenance
PMP Preventive Maintenance, Periodic
PMA Preventive Maintenance, Adjustments
PMF Preventive Maintenance, Function Check, Operating Value Check
Q System Quality, Image Quality
QIQ Image Quality
QSQ System Quality Check
SW Software Maintenance
CSE Customer Support Engineer
CS No.: Customer-specific number
IVK Installed Volume Component
WE Maintenance Unit
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Page 12
12 General information
1.8 Symbols
Checks and adjustments that must be performed with the radiation ON are identified by
the
X radiation warning symbol.
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System 13
2-
2 System
2.1 Checks
Fig. 1: MAMMOMAT checks
PMP Radiation protection
• Check the radiation protection shield for possible damage (1/Fig.1/p.13).
• Information regarding the lead equivalent value must be legible.
SIM Swivel arm/PPS tube attachment
• Check the swivel arm/PPS tube attachment by pulling on both support rails
(a minimum play of approximately ± 2° is correct). (2/Fig.1/p.13).
SIM Basic table
• Check the mounting of the basic table as well as the locking mechanism for the expo-
sure system (3/Fig.1/p.13).
SIM Flying wing (MAMMOMAT 3000 Nova only)
• Check the "Flying Wing" locking mechanism (wing basic table). Swivel "wing 1"
("wing 1" is the table with the stereo connector) toward "wing 2" and back
(6/Fig.1/p.13).
SIM Level
• Verify that the system is level with respect to the floor. Check the level screws
(4/Fig.1/p.13) with a water level and, if available, the floor mounting (optional).
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Page 14
14 System
PMP Face shield and compression plate
• Check the face shield and compression plate for correct seating and for damage
(5/Fig.1/p.13).
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System 15
2.2 Preparations
Fig. 2: X-ray tube covers
Fig. 3: Covers
SIE Cables
Fig. 4: Generator front covers
• System OFF
• Check the condition of the cables and the corrugated tubing (3/Fig.2/p.15) while re-
moving the following covers:
- X-ray tube covers (left, right, and front) (1, 2/Fig. 2 / p. 15)
- All covers of the stand (3, 6/Fig. 3 / p. 15)
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Page 16
16 System
NOTE
The edges of the metal curtain are very sharp and can cause severe injury. Attach the protective strips.
- Generator front cover (3/Fig.4/p.15).
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Column stand 17
3-
3 Column stand
3.1 Checks
SIM Steel ropes
• Do the steel ropes (balancing and flap), the drive belt, the suspension, or the pulleys
have any damage (e.g. fraying or splitting) or show signs of wear?
PMA Oil and grease
• If they are OK, lightly oil the wire cable, grease the rails, and then remove the protective
strips.
SIE Limit switches
• System ON. Move the lifting carriage up and down several times, the lifting carriage
should be in an upright (0°) position.
NOTE
It is normal to hear some noise from the rotation of the radiation
filter in the collimator when switching the system ON.
• Do the limit switches stop carriage travel at the top and at the bottom?
• Activate safety switch S882. System movements must be blocked.
PMF Vertical travel
• Is the vertical travel smooth and noiseless?
• Switch OFF the system and attach the protective strips once again.
SIM Safety catch and rotation safety catch
• Do the safety catch (1/Fig.1/p.17) and rotation safety catch (2/Fig.1/p.17) have any
visible damage? Are the springs in good condition?
Fig. 1: Safety catch
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Page 18
18 Column stand
SIM Ball bearings
• Depending on the serial no. of the MAMMOMAT, the lifting carriage is equipped with ei-
ther ten or twelve ball bearings (refer to (Fig.2/p.18)). The two ball bearings that are
missing in MAMMOMATs with ten bearings are only indicated in the figure. Check that
all ball bearings are in place and that they show no sign of damage.
Fig. 2: Lifting carriage
Pos. 1 Not on all MAMMOMATs
SIM Mounting for the X-ray tube
Fig. 3: X-ray tube
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Column stand 19
• Check the mounting for the X-ray tube unit (1/Fig.3/p.18).
PMA Grease the grid spindle
Fig. 4: Grid spindle
• Remove the cover plate from the object table and lightly grease the grid spindle
(1/Fig.4/p.19). Reattach the cover plate.
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Page 20
20 Compression and system movements
4-
4 Compression and system movements
4.1 Testing the "Compression" function
Fig. 1: Compression
• Attach the spring scale as shown in (1/Fig.1/p.20) and be careful not to damage the
compression plate during the following tests: Tolerance: ±1 kp.
4.1.1 Switching off
• System ON
PMF Presetting
• Select any value (e.g. 6 kp) on the potentiometer (2/Fig.1/p.20) and compress. Does
the compression unit switch off at this setting?
SIE Max. value switch off
• Select the maximum value (20 kp) with the potentiometer (2/Fig.1/p.20). (20 kp).
Does the unit switch off when it reaches the maximum value?
• Correct display (7/Fig.1/p.13).
PMF OPCOMP
• Position your forearm between the object table and the compression plate and check
the OPCOMP function.
¹ Typically, the cutoff value is between 6 and 10 kp at the factory setting.
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Compression and system movements 21
4.2 Testing the "Decompression" function
Fig. 2: Compression unit with covers Fig. 3: Compression unit without covers
• Attach the spring scale as shown in (1/Fig.2/p.21).
Tolerance: ±1 kp.
4.2.1 Switching off
SIE Safety switch
• Does decompression switch off at a counter pressure of approximately 5 kp?
¹ Because of the measurement location, this value corresponds to a value of
approximately 3 kp at the compression plate.
4.2.2 Travel
PMF Compression travel
• Move the compression plate up and down. Is the movement smooth and noiseless
through the entire range?
4.2.3 Applying oil and grease
PMA Apply oil and grease to the compression unit
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Page 22
22 Compression and system movements
• System OFF
Remove the upper and lower covers (snap closures, (2/Fig.2/p.21) and pot knob
(3/Fig.2/p.21).
• After removing the "small" Allen screws (two above and two below), the right cover
(4/Fig.2/p.21) of the compression unit can be removed.
• Grease the rails (2/Fig.3/p.21) lightly and check the belt (1/Fig.3/p.21) and string
(3/Fig.3/p.21) for damage/wear as well as for tension.
• Reinstall the covers on the compression unit.
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Compression and system movements 23
4.3 Compression thickness display
PMF Thickness indicator
• System ON. Move the compression plate to its full height and measure the height.
¹ The value displayed (7/Fig.1/p.13) must agree with the value measured.
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Page 24
24 Compression and system movements
4.4 Checking miscellaneous system movements
4.4.1 Checking miscellaneous system movements
SIE Switch off
• Check whether the motorized rotation movements shut off when a preset angle is
reached. The angle (e.g. 90°) is preset with the potentiometer, (3/Fig.1/p.13).
• Check the automatic switch-off function when passing the 0° position as well.
PMF Rotation movements
• Is the rotation movement smooth and noiseless through the entire range?
• Is the display correct (7/Fig.1/p.13)?
SIM Blocking rotation and vertical travel
• Rotation and vertical travel must be blocked at a compression force of > 3 kp.
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Test exposures 25
5-
5 Test exposures
• System OFF
• Connect the following measurement devices:
- Service PC to D702.X990
- Oscilloscope to MP kVactual.X711 (1V 5kV) and mAactual.X707,
OVA.X708 (1V 40mA)
- mAs meter to D710 (remove X3 - X4 jumpers)
- Multimeter at MP.BIAS on D706 (measurement range 200V=)
• System ON
X
• Test the kV/mA control loop according to the Installation & Start-Up Instructions, chap-
ter "Checks with high voltage".
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Page 26
26 Test exposures
5.1 Evaluating test values
PMF Anode acceleration
• Listen to the sound generated by the accelerating anode. Is the sound normal?
PMF kV and mA
• Do the measured kV and mA values agree with the values selected?
PMF mAs selection
• Do the measured mAs values agree with the values selected?
PMF mAs value displayed
• Does the measured mAs value agree with the displayed mAs value (for AEC)?
PMF Grid voltage
• Attach the magnification table. Measure the grid voltage (small focus) on tube test point
G against test point H
col?
• Test both focal spots (if available).
PMF Signal lamp
. Does the measured value agree with the value in the test proto-
3
• Does the radiation-ON indicator light up?
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Test exposures 27
5.2 Testing the dose rate control
X • Cover the measurement field (e.g.with a lead apron) and release an exposure.
PMF Dose rate control
• Does the dose rate control circuit switch OFF the exposure after approximately 100
ms? (The value is 50 ms for MAMMOMAT 1000/3000 Nova with serial no. 7000 and
higher or MAMMOMAT 1000/3000 with a serial number lower than 7000 but upgraded
with the "AEC upgrade kit", i.e. having
- generator and stand with firmware version 4.0 or higher, and
- service software version 4.1 or higher.)
• Check both wings (MAMMOMAT 3000 Nova only).
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Page 28
28 Test exposures
5.3 Testing the radiation field/light field
X • Proceed with the test according to the Installation & Start-Up Instructions, chapter
"Checking the radiation field limitation".
PMF Format collimation
• Is the format collimation correct? (18 x 24, 24 x 30, small focus)
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Test exposures 29
5.4 Testing image quality
• Attach the most frequently used exposure system (e.g. grid table 18 x 24).
• Load the "test cassette" with film and insert it.
• Position the SIB phantom over the 2-cm Plexiglas or other IQ phantom (e.g. Normi 7).
• Select the most frequently used kV value, AEC and automatic decompression.
X
PMF Automatic decompression
• Compress slightly and release an exposure.
• Does decompression occur immediately following the end of the exposure?
• In addition, expose a sensitometer strip and develop the exposure.
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30 Test exposures
5.5 Evaluating the films
QIQ Phantom exposures
• Compare the phantom exposures to those on hand and/or archive them for the next
maintenance as starting values.
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Miscellaneous 31
6-
6 Miscellaneous
6.1 Blocking exposure release
PMF Blocking
Exposure release must be blocked under the following conditions
(indicated on the control console):
- No cassette is inserted.
- Cassette was not changed after the last exposure.
- Table is not attached or not locked in place.
- Wing 1 or wing 2 is not locked in place. (Mammomat 3000 Nova only).
- For stereo only: no external collimator for beam limitation in the collimator.
(Mammomat 3000 Nova only).
- The two exposure release switches were not pressed simultaneously.
- No external collimator for 18 x 24 or magnification. (Mammomat 1000 only).
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Page 32
32 Miscellaneous
6.2 Checks
SIE Emergency STOP
• Press Emergency STOP, see chapter "Compression and system movements"
(4/Fig.1/p.20).
- Are the compression, rotation and vertical travel of the lifting carriage blocked?
• Release the Emergency STOP.
PMF Indicators
• Check the LEDs on the operating console by starting the panel test via the service PC.
PMP Error memory
• Read out the error memory and the exposure counter with the service PC.
PMP Record the error memory.
PMP Delete the error memory.
• Enter the data from the exposure counter and the error memory in the protocol and de-
lete the error memory only.
PMF Auxiliary voltages
• Use the voltmeter to measure the auxiliary voltages according to circuit diagram
X041E, sheet 2-12/13 (test points on D801, D802 and D704).
• System OFF
PMF Cassette locking
• Check that the cassettes being used lock in properly to the object tables.
PMF OPDOSE
• Check the selection of various anode/filter combinations and OPDOSE according to the
Installation Start-Up Instructions, chapter "Start-up and functional test of the IONTOMAT" or "Calibrating and adjusting the AEC".
PMF Stereo unit (Mammomat 3000 Nova only)
• If attached, check the stereotactic biopsy option according to the supplement to the In-
structions for Use.
PMA UIs and SPEED info
• Check whether all relevant UIs and SPEED info has been completed.
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Miscellaneous 33
6.3 Final tests
• Remove the measurement devices.
PMF Operating problems
• Were there any operating problems during the checks?
PMP Covers
• Remove the protective strips and attach all removed covers. Check that all covers are
completely and firmly attached, including the cable duct.
SIE Protective conductor test
• Perform the protective conductor test according to ARTD-002.731.17....
PMP Cleaning/damaged paint
• Clean the unit using the materials recommended in the Instructions for Use and repair
any damaged paint.
• System ON.
QSQ Final test exposure
• Take one final test exposure.
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Page 34
34 Changes since the previous version
7-
7 Changes since the previous version
Document was converted to DMS.
MAMMOMAT 1000/3000 Nova SPB7-230.101.02.05.02 Siemens AG
02.06 CS PS SP
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Medical Solutions
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