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Repair information and instructions

6.8 Replacing the pneumatic block

Tools and equipment required:

• ESD-protected workplace,

• Phillips screwdriver, size 2,

• Tubular hexagon box spanner 10 mm,

• Torque spanner 50 ±5 Ncm,

• Torque spanner 200 ±10 Ncm,

• Special tool WM 22829 from special tool set WM 15349,

• Flat-nose pliers.

1. Open the device (see "6.3 Open the device"

on page 30).

2. Press the catch and unplug the magnetic valve

control cable.

3. Unplug the potentiometer cable.

4. Remove the clip

from the pneumatic

block

5. Pull the elbow connector

off the pneumatic

block

6. Remove cable tie

, which fixes the cable for

MEDUtrigger socket

to the pneumatic

block, from pneumatic block

. Take the

cable out of the bracket.

7. Turn the lower part of the housing over, hold it

and the pneumatic block tight and unscrew
both screws

together with the spring wash-

ers

8. Turn the lower part of the housing over again.

Magnetic valve
control cable

Potentiometer
cable

Catch

Содержание MEDUMAT Easy CPR

Страница 1: ...MEDUMAT Easy CPR Service and Repair instructions Ventilator WM 28140 ...

Страница 2: ... 25 4 3 Storage 25 5 Troubleshooting 26 6 Repair information and instructions 29 6 1 General 29 6 2 Changing the filter in the pressurised gas connection 29 6 3 Open the device 30 6 4 Close the device 32 6 5 Replacing button cell 34 6 6 Changing the speaker 35 6 7 Changing the board 36 6 8 Replacing the pneumatic block 37 6 9 Replacing the 3 2 way magnetic valve 39 6 10 Calibrating the potentiomet...

Страница 3: ...hnology and repair of the MEDUMAT ventilator Thanks to training which you have already received from WEINMANN you now count as trained expert personnel and can therefore give your customers appropriate instructions remedy problems on your own and perform the functional checks prescribed in the operating instructions and any repairs required in accordance with these Service and Repair Instructions ...

Страница 4: ...dicator bar graph 5 Colour code 9 LED Demandflow 4 Alarm mute 3 Alarm panel 10 ON OFF switch 8 Index position 7 Adjuster knob ventilation parameters 1 Mask tube ventilation switch with indicator LEDs 6 CPR key and indicator LED 11 10 0 9 CPR AT 13 14 0 3 0 6 1 1 60 50 40 30 20 10 0 CPR 12 Battery compartment 11 Pressurized gas connection 16 Ventilation hose connection 17 Relief outlet valve 13 Spe...

Страница 5: ...4 Protection against ingress of water and dust Protection class BF Do not dispose of the device in domestic waste 5 Patient circuit connection 6 Maximum pressure 100 mbar 8 Indicates where to connect the MEDUtrigger Safety check and servicing labe 7 Servicing label indicates when the next service is due 4 Safety check label in Germany only marks when the next safety check as per 6 of the German la...

Страница 6: ...9 BF protection class Do not dispose of the device in domestic waste CE symbol confirms that the product conforms to the applicable European directives IP54 Protection against ingress of water and dust Protection class II protective insulation Date of manufacture ...

Страница 7: ...ents between the various rooms and departments of a hospital between the hospital and other premises in emergencies when transport over considerable distances is planned MEDUMAT Easy CPR is designed to provide controlled ventilation to persons of 10 kg body weight or more is used to treat ventilation arrest can be preset to parameters that ensure evenly balanced ventilation provided that the selec...

Страница 8: ...patient valve and either the mask or tube into the patient s airways The patient valve is fitted with a lip membrane that enables expired gas to be conducted away through the expiration tube You can check the course of ventilation on the ventilation pressure indicator 2 2 3 Demandflow function The Demandflow setting switches the MEDUMAT Easy CPR to breathing controlled O2 inhalation Such inhalatio...

Страница 9: ...ched on for user guidance especially for users with little practice The language can only be set if the device is switched off beforehand To select a language or to switch off the audio response facility proceed as follows 1 Hold down the mask tube switch 1 2 Switch on the device at the ON OFF switch 10 3 Now release the mask tube switch 1 The device is now in the language selection menu The venti...

Страница 10: ...lect the setting 0 0 mbar if you want to switch off the audio response facility You will then hear the message Audio response is off in the language most recently selected After approx 5 seconds the new setting is automatically stored The LED for the selected language setting goes out Device number mbar Language WM 28140 WM 28150 French variant 60 Icelandic 55 Finnish 50 Norwegian 45 Swedish 40 Da...

Страница 11: ...ess CPR key 50 mbar LED red comes on the metronome is activated 45 mbar LED green comes on the metronome is deactivated 5 Press the CPR key to change the operating state of the metronome 6 Press On Off key 10 to confirm the operating state of the metronome 1 x audible confirmation metronome deactivation is confirmed 2 x audible confirmation metronome activation is confirmed ...

Страница 12: ...ble test device Adjustable orifice e g ball cock internal diameter 10 mm Test kit for function check WM 15357 Oxygen concentration measuring device 0 100 1 e g type Oxycontrol WM 13550 Tube set with syringe WM 15359 Pressure measuring device 0 6 3 bar Class 1 6 Pressure measuring device 0 100 mbar Class 1 6 Set power supply test for Medumat Module WM 15440 Test adapter WM 20907 Default settings fo...

Страница 13: ...setting 3 3 Enter device data 1 Enter the device data from the device information plate in the test protocol and check the device information plate is complete and undamaged 3 4 Check for leaks and check pressure display 3 4 1 Check for leaks on inlet side 1 Provide a pressurized gas supply to MEDUMAT Easy CPR and to the flow meter 2 Switch off device 3 Open oxygen cylinder 4 Close oxygen cylinder...

Страница 14: ...s switched on 1 Provide a pressurized gas supply to MEDUMAT Easy CPR and to the flow meter 2 Connect the patient circuit to MEDUMAT Easy CPR 3 Open oxygen cylinder 4 Switch on device Requirement The self test is triggered the ventilation mode LEDs light up once each in turn the alarm LEDs flash the pressure indicator LEDs are run through 3x a signal sounds and one sentence is issued by the audio r...

Страница 15: ...tch from mask ventilation to tube ventilation 5 Press the alarm mute button 4 6 Press the CPR key 6 Requirement All the controls must work perfectly 3 7 Function check and alarms 1 Provide a pressurized gas supply to MEDUMAT Easy CPR and to the flow meter 2 Open oxygen cylinder 3 Switch on device 13 14 0 3 0 6 1 1 60 50 40 30 20 10 0 CPR 13 14 0 3 0 6 1 1 60 50 40 30 20 10 0 CPR ...

Страница 16: ...ter 2 ventilation operations The device issues the message Check ventilation system and settings 3 7 4 Test pressure alarm 1 Shut off pressurized gas connection of device 2 7 6 0 bar Requirement The pressure alarm must be triggered The device issues the message Check pressure hose system and gas supply 3 7 5 Test demand mode LED 1 Open compressed air supply 2 Select Demand flow setting Requirement...

Страница 17: ...essure bar graph In the table you will find an assignment of bar graph values to battery voltage values Requirement Measured value for 3 0 V battery is in the range 3 0 to 3 2 V the alarm for this cell is triggered at 2 7 V 2 Switch off device 3 8 2 3 6 V battery battery compartment 1 Open battery compartment with a screwdriver 2 Remove 3 6 V battery from battery compartment 3 Measure voltage usin...

Страница 18: ...vice at setting freq 14 min 1 and Vt 1 1 l Requirement Frequency must be 14 2 min 1 6 Operate device at setting freq 10 min 1 and Vt 1 1 l Requirement Frequency must be 10 2 min 1 7 Operate device at setting freq 30 min 1 and Vt 0 1 l Requirement Frequency must be 30 2 min 1 8 Switch off device 9 Close oxygen cylinder 10 Disconnect pressurized gas supply from device 11 10 0 9 CPR AT Orifice 10 mba...

Страница 19: ...14 min 1 and Vt 1 1 l Requirement Breath volume Vte must be 1140 170 ml 5 Operate device at setting freq 10 min 1 and Vt 1 1 l Requirement Breath volume Vte must be 1100 170 ml 6 Operate device at setting freq 30 min 1 and Vt 0 1 l Requirement Breath volume Vte must be 100 20 ml 7 Switch off device 8 Close oxygen cylinder 9 Disconnect pressurized gas supply from device 11 10 0 9 CPR AT Orifice set...

Страница 20: ...ressurized gas supply from device 3 12 Function check of pressure limit 1 Provide pressurized gas supply to MEDUMAT Easy CPR 2 Open oxygen cylinder 3 Switch on device 4 Put test bag with adapter from test set WM 15357 on patient valve 5 Operate device at setting freq 10 min 1 and Vt 1 1 l 6 Switch device to mask ventilation Requirement The pressure limit must respond at 20 5 mbar 7 Switch device t...

Страница 21: ...he test bag is fully inflated during the inspiration stroke The ventilator then vents audibly 9 Switch off device 10 Close oxygen cylinder 11 Disconnect pressurized gas supply from device 3 14 Test MEDUtrigger 1 Provide pressurized gas supply to MEDUMAT Easy CPR 2 Open oxygen cylinder 3 Put test bag with adapter from test set WM 15357 on patient valve 4 Select setting freq 10 min 1 Vt 1 l between ...

Страница 22: ...5 Switch off device 6 Disconnect test adapter from device 7 Press the CPR key and the alarm mute key simultaneously and keep them depressed 8 Switch on device The device tests the function in interface mode During the test the 0 mbar LED on the ventilation pressure indicator comes on Requirement The 60 mbar LED red must come on for 3 seconds In addition the LEDs for mask ventilation and demand flo...

Страница 23: ... check 23 3 17 Documentation 1 Note down items 3 3 to 3 16 as well as the test date and tester number in the test record 2 Restore the operator s settings switch audio response on off switch metronome on off ...

Страница 24: ...s Visual check Mechanical damage Labelling of controls Damage to all external hoses Renew parts subject to wear parts requiring compulsory replacement see 7 2 Service sets on Page 37 Check system components portable systems oxygen fittings secretion suction system hose connections etc Check test bag Final check in accordance with Test Record STK see 3 Final check on Page 8 and see 11 Repair and se...

Страница 25: ...hanging batteries special precautions must be taken to protect the electronic circuits see 6 5 Replacing button cell on Page 24 When changing the main battery 18 you must change the O ring 43 on the battery compartment cover 44 as well 4 3 Storage If you do not intend to use MEDUMAT Easy CPR for a long period we recommend the following storage precautions 1 Clean and disinfect the device see 5 Hyg...

Страница 26: ...ton 10 pressed for at least 2 seconds On Off button 10 defective Change fascia film 6 12 Page 32 MEDUMAT Easy CPR is functioning but without any displays Pressure gauge hose on MEDUMAT Easy CPR or on patient valve has slipped off Check pressure gauge hose Kink in pressure gauge hose Pressure gauge hose within device is kinked or has slipped off Vt too high Measured without 10 mbar back pressure Se...

Страница 27: ... s Speaker defective Replace speaker 6 6 Page 25 Alarm 2 7 bar although pressure present Pressure sensor defective Change board 6 7 Page 26 Hose connections in device not in order Check hoses replace if necessary 6 8 Page 27 Alarm Battery failing Change main battery 27 4 2 Page 16 check button cell 26 3 8 1 Page 10 and replace if necessary 4 2 Page 16 Pressure inlet leaking Angled connector in dev...

Страница 28: ...er does not trigger a respiratory stroke CPR mode only Respiratory stroke triggered during the inspiration and expiration phase Wait until the expiration phase is over to trigger the respiratory stroke corresponds to the length of the inspiration phase The MEDUtrigger is not working MEDUtrigger not correctly connected Check whether the MEDUtrigger connector is correctly positioned and correct it F...

Страница 29: ... repair work Be sure to carry out a final check after every repair see 3 Final check on Page 8 If you replace components or individual parts use only genuine WEINMANN parts When ordering the lower part of the housing 33 please specify device type year of manufacture and device number Note The item numbers quoted in the following text are identical to the item numbers in the spare parts list on pag...

Страница 30: ...ster knob 42 steady with the special tool and undo the nut max 2 turns using a tubular hexagon box wrench 10 mm 4 Pull off adjuster knob 42 5 Place the device on a non slip surface and unscrew the 4 screws 45 from the rear wall of the device 6 Place the device on its side and pull both parts of the housing carefully apart until the retaining pin of the knob is pulled right out of upper part of hou...

Страница 31: ...nsor tube from the Y connector 61 with the short tubes 59 and 60 12 Pull the two halves of the housing apart and put them down with the outsides face down 13 Undo screw 49 with serrated lock washers 50 from the ground connection to the pneumatic block 14 If the Y sensor tube is damaged carefully take tube 59 off sensor S3003 and tube 60 off sensor S3000 on the board 15 Unscrew the long tube 58 of ...

Страница 32: ... screws 48 and spring rings 47 Note The shortest tube 59 of the Y sensor tube may only be pushed onto sensor S3003 otherwise it may kink 4 Push tube 59 the shortest of the three tubes of the Y sensor tube carefully onto sensor S3003 and tube 60 onto sensor S3000 on the board 5 Screw the long tube 58 of the Y sensor tube to the pneumatic block 6 Screw the ground connection to the pneumatic block ti...

Страница 33: ...crews 45 at a torque of 50 5 Ncm 14 Put battery 27 in the battery compartment and close the cover 44 using a coin Ensure the correct polarity 15 Fix knob 42 in position Push the knob onto the spindle until just before the stop Hold the knob with the special tool and screw it up at a torque of 200 10 Ncm 16 Check the display for the knob at the left hand stop the white line should point to the valu...

Страница 34: ...ut of the holder and pull the button cell out sideways with the other hand Caution Do not use sharp or pointed objects for this pur pose as this could damage the board 5 Insert a new button cell 26 Make sure it is installed the right way round 6 Insert the board 30 in the upper part of the housing Make sure that the ribbon cable is not under the board or jammed between it and the housing 7 Attach ...

Страница 35: ... page 30 steps 1 to 6 2 Remove the speaker 13 from the lower part of the housing 33 and disconnect the speaker ca ble plugs 3 Take the new speaker 13 and connect the speaker cable plugs 4 Insert the speaker 13 in the recess in the lower part of the housing 33 The centering lug of the speaker must be located in the corresponding groove in the lower part of the housing 5 Close the device see 6 4 Clo...

Страница 36: ...ew the two screws 51 and remove the board 30 from the upper part of the housing 4 Unscrew the M3 nut from the sensor tube 5 Place the new board 30 on the spacers Make sure that the ribbon cable is not under the board or jammed between it and the housing 6 Attach the board 30 with the two screws 51 7 Place the ribbon cable in the clamp X1000 on the board and then press down the top part of the clam...

Страница 37: ...he magnetic valve control cable 3 Unplug the potentiometer cable 4 Remove the clip 36 from the pneumatic block 31 5 Pull the elbow connector 35 off the pneumatic block 31 6 Remove cable tie 69 which fixes the cable for MEDUtrigger socket 55 to the pneumatic block from pneumatic block 31 Take the cable out of the bracket 7 Turn the lower part of the housing over hold it and the pneumatic block tigh...

Страница 38: ...d the pneumatic block tight and screw up both screws 46 with their spring washers 47 12 Lubricate the O rings of the elbow connector 35 with a little O2 lubricant WM 14298 Make sure that the compensating hole remains free 13 Insert the O ring 37 in the groove in the outlet from the pneumatic block 14 Insert the elbow connector 35 in the pneumatic block 31 15 Insert the clip 36 in the pneumatic blo...

Страница 39: ...eumatic block see 6 8 Replacing the pneumatic block on page 37 3 Place the pneumatic block on the side with the type plate 4 Unscrew the two securing screws and remove the 3 2 way magnetic valve 32 5 Insert the new 3 2 way magnetic valve 23 in the correct position Make sure that the seal for the 3 2 way magnetic valve is seated in the correct position 6 Fasten the 3 2 way magnetic valve with the s...

Страница 40: ...iometer calibration process by pressing the On Off switch 10 If the value is correct this is indicated by the 0 mbar LED on the bar graph lighting up You can now set the next value 5 Turn the adjuster knob 7 fully to the right to the white Demandflow zone 6 Press the mask tube switch 1 The device accepts this value The LED on the bar graph lights up and you can move on to setting the next value 7 ...

Страница 41: ...e pliers 1 Open the device see 6 3 Open the device on page 30 2 Remove the board see 6 7 Changing the board on page 36 steps 2 and 3 3 Remove the grommet 56 from the upper part of the housing 29 You have now removed all the parts You can start reassembling 4 Insert the grommet 56 in the new upper part of the housing 29 5 Refit the board see 6 7 Changing the board on page 36 steps 5 to 7 6 Close th...

Страница 42: ...ox spanner through the hole for the grommet 56 and press the fascia film 28 outwards until you can grasp it on one side Then completely remove the fascia film from the upper part of the housing 29 5 Use 70 isopropanol to remove all traces of adhesive from the upper part of the housing Then wait until the isopropanol has completely evaporated from the housing surface You have now removed all the pa...

Страница 43: ...m Torque wrench 200 10 Ncm Special counter tool G 3 8 WM 22827 and special wrench size 17 WM 22828 from special tool set WM 15349 Allen key for grooved nut M1 x 0 5 WM 28166 Vise with protective jaws Flat nose pliers 1 Open the device see 6 3 Open the device on page 30 2 Remove the pneumatic block 6 8 Replacing the pneumatic block on page 37 steps 2 to 9 3 Disconnect cable harness 53 from the cabl...

Страница 44: ...nection 11 16 Push metal piece 38 on the inside of the housing onto the connection 17 Screw nut 39 size 17 on the inside of the connection tight 18 Fix elbow connector 34 on the connection 19 Undo the nut of the special counter tool using the open ended wrench size 22 20 Open the vise 21 Turn the special counter tool off pressurized gas connection 11 22 Pass the cable for the MEDUtrigger socket 55...

Страница 45: ...nd instructions 45 29 Refit the pneumatic block see 6 8 Replacing the pneumatic block on page 37 steps 10 to 18 30 Close the device see 6 4 Close the device on page 32 31 Perform a final check see 3 Final check on page 12 ...

Страница 46: ...r patient valve WM 3280 WM 3281 WM 3284 WM 3282 WM 1145 118 WM 3212 WM 3211 WM 3181 WM 3213 25 MEDUtrigger complete WM 20900 26 27 Button cell CR 2430 Battery 3 6 volt WM 22652 WM 28045 28 Fascia film for MEDUMAT Easy CPR Fascia film for MEDUMAT Easy CPR FR WM 28142 WM 28143 29 Upper part of housing with fascia film for MEDUMAT Easy CPR consisting of upper part of housing with fascia film device i...

Страница 47: ...connection WM 22509 39 Nut for pressure connection WM 22586 40 O ring pressure relief valve WM 1145 3 41 Cover for adjuster knob gray WM 22941 42 Short knob WM 4891 43 O ring for battery compartment lid WM 1145 145 44 Battery compartment latch complete WM 28046 45 Fillister head screw 30 x 40 mm for housing WM 58347 46 Fillister head screw M3 x 16mm for pneumatic block WM 53033 47 Spring ring DIN ...

Страница 48: ...MEDUMAT tubes consisting of tube silicone 65 mm long tube silicone 25 mm long tube silicone 35 mm long Y connector oxygen inlet tube 42 mm long WM 15058 63 Pressure screw WM 1158 64 Screen set consisting of screen sealing washer 3 5 x 6 x 0 5 WM 15284 65 Service label for servicing in 2 years WM 75340 66 Blanking plug for interface connection lower part of housing WM 1504 67 Label for O2 inlet WM ...

Страница 49: ...e 8 and 16 years Set WM 15464 comprising Set WM 15463 Button cell Seal for speaker Set tubes Pneumatic block 2x O ring 11 x 1 5 for elbow outlet Service 12 years Set WM 15465 comprising Set WM 15463 Printed circuit board PCB MEDUMAT Easy CPR WM 28170 O ring 26 x 2 for battery compartment lid ...

Страница 50: ... special counter tool Vice with jaw protectors countering threaded connection Tubular hexagon box spanner 10 mm for adjuster knob Tubular hexagon box spanner 8 mm for fascia film Tweezers for filter set Diagonal cutter Flat nose pliers Allen key 2 5 mm Torque spanner 50 5 Ncm Torque spanner 200 10 Ncm 8 2 Special tools The following tools can be obtained from WEINMANN Special tool set comprising W...

Страница 51: ...ventilator tester obtainable from EKU Elektronik GmbH Feldstraße 9a D 56291 Leiningen Tel 0049 6746 1018 Fax 0049 6746 8484 www eku elektronik de Test set for final check WM 15357 Set supply test Medumat Modules WM 15440 Set test set ventilation and pressure reducer flow WM 15443 Pressure gauge 0 to 6 3 bar class 1 6 Pressure gauge 0 100 mbar class 1 6 Type WIKA obtainable from Alexander Wiegand G...

Страница 52: ...1 l 15 for 0 1 l 35 for 0 1 l 20 Max ventilation pressure 20 or 45 mbar O2 concentration 100 O2 Pressurized gas connection External thread G 3 8 Ventilation hose connection External diameter 13 mm Patient valve Inspiration tube 15 mm socket 22 mm plug ISO 5356 1 Patient valve Expiration tube 30 mm socket ISO 5356 1 Power supply Life expectancy Max storage period Maintenance free lithium battery 3 ...

Страница 53: ...The relief valve V4 opens and vents the ventilation hose The patient breathes out through the patient valve Demandflow An inspiration impulse trigger at V2 opens valves V3 and V4 Electronic system The microprocessor controlled electronic system sets the ventilation parameters and monitors ventilation and also O2 supply and power supply If necessary a visual and acoustic alarm is given The ventilat...

Страница 54: ...54 Technical Changes 10 Technical Changes Technical Changes From Device No Date ...

Страница 55: ...ny _____________ __________________ Date Signature Device type MEDUMAT Easy CPR Order No ________________________ Company _____________ __________________ Date Signature Date of manufacture ________________ Safety check 2 years _______________ Company _____________ __________________ Date Signature Safety check 4 years _______________ Safety check 6 years _______________ Company _____________ ____...

Страница 56: ...ann GmbH Co KG Date of manufacture Owner operator Record of tasks performed Repair performed Servicing performed Service interval 2 years Safety check STK performed only required in Germany Safety check STK interval 2 years Note The safety check STK is no substitute for the necessary servicing nor for the preventive replacement of wear parts Test result The device conforms to the requirements of 6...

Страница 57: ... min 3 5 Self test after device is switched on OK NOK The self test runs without errors 3 6 Function check of controls key test OK NOK All the controls work perfectly 3 7 Function check and alarms OK NOK 3 7 1 Test stenosis alarm The stenosis alarm is correctly triggered 3 7 2 Test alarm acknowledgement The acoustic alarm is suppressed immediately the visual alarm remains active 3 7 3 Test disconn...

Страница 58: ...st O2 concentration OK NOK O2 concentration must be 98 by volume 3 12 Function check of pressure limit OK NOK Pressure limit 20 5 mbar mbar Pressure limit 45 5 mbar mbar 3 13 Function check of venting valve without patient valve OK NOK The ventilator vents audibly 3 14 Test the MEDUtrigger OK NOK LEDs on Medutrigger come on LEDs on Medutrigger go out 3 15 Test communication socket OK NOK The commu...

Страница 59: ... Page 4 of 4 Check equipment and accessories system components OK NOK Present No Yes Patient circuit with patient valve undamaged and in working order Test set for function check complete Pressure reducer in working order O2 cylinder within test period valve in working order Carrying platform complete and in working order Medical devices book Germany only Instructions for use Test performed Date S...

Страница 60: ...lsweg 40 D 22525 Hamburg T 49 0 40 5 47 02 0 F 49 0 40 5 47 02 461 E info weinmann de www weinmann de Center for Production Logistics Service Weinmann Geräte für Medizin GmbH Co KG Siebenstücken 14 D 24558 Henstedt Ulzburg T 49 0 4193 88 91 0 F 49 0 4193 88 91 450 WM 67308 04 10 ...

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