Siemens MAMMOMAT 300 Gebrauchs- und Pflegehandbuch

MAMMOMAT 300/1000/3000/3000 Nova

English

Print No.: SPB7-230.841.03.02.02 Doc. Gen. Date: 04.04

Replaces: SPB7-230.841.03.01.02 (66 47 015)

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.

Service

Compression Mechanism and Potentiometer (R863)

Replacements of Parts

M300/1000/3000/3000 Nova SPB7-230.841.03 Page 2 of 4 Siemens AG

Service Rev. 02 04.04 CS PS 24 Medical Solutions

0 - 2 Revision

Document revision level

The document corresponds to the version/revision level effective at the time of system delivery. Revi-

sions 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 autho-

rized 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.

Chapter Page Revision

All All 02

Contents 0 - 3

Siemens AG SPB7-230.841.03 Page 3 of 4 M300/1000/3000/3000 Nova

Medical Solutions Rev. 02 04.04 CS PS 24 Service

1 _______Prerequisites __________________________________________________ 1 - 1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

Components concerned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

Tools required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

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

Parts included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2

Time required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2

2 _______Procedure - Compression mechanism _____________________________ 2 - 1

Remove the covers from compression unit . . . . . . . . . . . . . . . . . . . . . . . 2 - 1

Replace the compression mechanism . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 2

Test the compression function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 5

3 _______Procedure - Potentiometer R863 __________________________________ 3 - 1

Exchange of Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1

Work steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1

4 _______Changes to previous version _____________________________________ 4 - 1

0 - 4 Contents

M300/1000/3000/3000 Nova SPB7-230.841.03 Page 4 of 4 Siemens AG

Service Rev. 02 04.04 CS PS 24 Medical Solutions

1 - 1

Siemens AG SPB7-230.841.03 Page 1 of 2 M300/1000/3000/3000 Nova

Medical Solutions Rev. 02 04.04 CS PS 24 Service

Prerequisites 1

General 1

This instruction describes:

in Chapter 2 - how to replace the compression mechanism in the compression unit of the

mammography systems MAMMOMAT 300 and MAMMOMAT 1000/3000/3000 Nova.

in Chapter 3 - how to replace the potentiometer R863 - the position transducer of the

compression unit.

Components concerned 1

Components concerned are the compression units/devices normally used on

MAMMOMAT 1000/3000/3000 Nova systems, on MAMMOMAT 300 systems and - with

some modifications - also used on MAMMOMAT Novation DR systems.

Material numbers

063 86 051 (used for the Sales Item)

065 21 681 (used for the Sales Item)

064 31 725 (used as Spare Part with REP-Status)

If you encounter compression units with material numbers that are not listed here, apply

this instruction appropriately. If necessary, contact CS HSC 24.

Tools required 1

Standard toolkit (including Allen keys with ball-shaped heads).

Resistance Measuring Instrument (e.g. Fluke - with Ohm-meter function).

Documents required 1

The technical documentation delivered with the corresponding MAMMOMAT system.

Mainly: Maintenance Instruction SPB7-230.105...

Service Program SPB7-230.114...

Strictly observe all safety precautions - as described in the

relevant technical documents - during work that involves

assembly, disassembly, removal of covers or work under voltage.

NOTICE

M300/1000/3000/3000 Nova SPB7-230.841.03 Page 2 of 2 Siemens AG

Service Rev. 02 04.04 CS PS 24 Medical Solutions

1 - 2 Prerequisites

Parts included 1

Repair kit "Compression Mechanism and Potentiometer", Material Number

065 76 214 mainly contains:

(Details in Design Specification 65 76 214 EDS-01S-00)

Time required 1

Approximately 1.5 hours for 1 person for exchange of the compression mechanism.

Approximately 3.0 hours for 1 person for exchange of the potentiometer.

Item Description Amount Remark

1 Compression mechanism 1 Assembly

2 Tool for compression unit 1 65 76 222

3 Spring pin 2.5 x 14 ISO 8752 2 60 53 656, if needed, because

original damaged, see Pos. 98

on Fig. 5.

4 Potentiometer, 2 kOhm 1W, 10% lin. 1 62 35 118

5 Allen key 1.3 mm 1

6 This repair instruction 1 SPB7-230.841.03.02

2 - 1

Siemens AG SPB7-230.841.03 Page 1 of 6 M300/1000/3000/3000 Nova

Medical Solutions Rev. 02 04.04 CS PS 24 Service

Procedure - Compression mechanism 2

Remove the covers from compression unit 2

•System OFF.

•Pry open the lid on the maximum compression force presetting knob. Loosen the screw

underneath the lid and remove the knob (1/Fig. 1).

•Remove the cover from the manual compression/decompression knobs (2/Fig. 1).

•Release the locking pin on the upper and lower cover and remove the covers.

•Loosen the Allen screws on top and at the bottom of the compression unit holding the left

side cover (3/Fig. 1). Remove the side cover.

Fig. 1

Locking pin

M300/1000/3000/3000 Nova SPB7-230.841.03 Page 2 of 6 Siemens AG

Service Rev. 02 04.04 CS PS 24 Medical Solutions

2 - 2 Procedure - Compression mechanism

Replace the compression mechanism 2

•Loosen the Allen screw on the belt tightener and lower the belt tightener (1/Fig. 2).

•Remove the drive belt from the compression mechanism.

Fig. 2

Drive belt

Belt tightener

Procedure - Compression mechanism 2 - 3

Siemens AG SPB7-230.841.03 Page 3 of 6 M300/1000/3000/3000 Nova

Medical Solutions Rev. 02 04.04 CS PS 24 Service

•Loosen the Allen screws holding the plate that keeps the curtain in place (1/Fig. 3).

Remove the plate and the curtain.

•Loosen the Allen screw securing the spindle (2/Fig. 3).

•Push the spindle inwards until it reaches the back of the compression unit in order to

release the compression mechanism.

Fig. 3

Ensure that the manual compression/decompression knobs are

not in their lowest position. In the lowest position it is not

possible to push the spindle fully in towards the back of the

compression unit and the compression mechanism will not be

released.

Curtain

Spindle

NOTE

M300/1000/3000/3000 Nova SPB7-230.841.03 Page 4 of 6 Siemens AG

Service Rev. 02 04.04 CS PS 24 Medical Solutions

2 - 4 Procedure - Compression mechanism

•To loosen the compression mechanism, insert the compression mechanism tool into one

of the holes on the side of the compression mechanism. Turn the tool around until it

slides fully in (Fig. 4).

•Loosen the compression mechanism with an adjustable wrench gripping the

compression mechanism tool and remove the compression mechanism.

•Apply threadlocker on the threads of the new compression mechanism and insert it.

•Insert the compression mechanism tool into one of the holes on the side of the

compression mechanism and turn the tool around until it slides fully in (Fig. 4).

•Fasten the compression mechanism with an adjustable wrench gripping the tool.

•Push the spindle back into its original position.

•Fully fasten the Allen screw securing the spindle. Loosen the Allen screw by 180 degrees

so it is not completely fastened.

•Position the curtain in its original place, fit the plate over the curtain and fasten it with the

Allen screws.

•Put the belt tightener back and fit the drive belt of the belt tightener and compression

mechanism.

•Tighten the drive belt and fasten the Allen screw on the belt tightener.

•Assemble the covers in reverse order.

Fig. 4

Be careful when fastening the compression mechanism.

Too much force may damage the brass parts. Such damage will

affect the smoothness of operation of the compression unit.

If the Allen screw is completely fastened it will prevent the spindle

from running smoothly and affect the operation of the

compression mechanism.

The holes have to

correspond

CAUTION

NOTE

Andere Handbücher für MAMMOMAT 300

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