Drager Medical Air Compressor User manual Version 2.0

Repair Instructions Service strategy

Repair Instructions

1 Service strategy

Test Repair

Inspection PMS

Procedure

On-site repair PMS

Procedure

Branch/Agency (workshop)

Lübeck (workshop) PMS

PMS Procedure

Procedure

Minor repair

Filter replacement, if necessary

Hoses

Fuses

Assembly replacement

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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Repair Instructions Front view of the medical air compressor

2 Front view of the medical air compressor

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2

3

Fig. 1 Front view of the medical air compressor

Legend

1 Red "Overheat" indicator lamp

2 Green "Standby" indicator lamp

3 Trolley

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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Repair Instructions Rear view of the medical air compressor

3 Rear view of the medical air compressor

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1

7 6 5

Legend

1 Connection for a ventilator

2 Standby (optional connection for central supply

system)

3 Typeplate

4 Operating hours counter

5 Power fuses

6 Mains connection

7 ON/OFF switch

8 Suction channel with filter

4 3

Fig. 2 Rear view of the medical air compressor

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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3

Repair Instructions Layout of the assemblies (1)

4 Layout of the assemblies (1)

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2

D

Legend

1 Protective cover

2 Heat exchanger

4

3 Pressure vessel

4 Fixing screws

5 Diaphragm drier

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6

5

6 Pressure switch (switchover optional)

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Fig. 3 Layout of the assemblies (1)

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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Repair Instructions Layout of the assemblies (2)

5 Layout of the assemblies (2)

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4

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1

Legend

1 Compressor

2 Suction filter

3 Filter assembly (prefilter and main filter)

4 Starting capacitor

5 Buzzer

6 Solenoid

5

7 Cooling coil

8Fan

6

7

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Fig. 4 Layout of the assemblies (2)

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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Repair Instructions Opening the medical air compressor

6 Opening the medical air compressor

Hazardous voltage. Touching live components can lead to serious injury or death.

Pull the power plug out of the AC outlet before opening the device.

1 Remove the fixing screws from the cover, see Fig. 3.

2 Carefully pull the protective cover back until the cable

of the indicator lamp can be accessed.

3 Unscrew the Phillips screw (Fig. 5/1) from the

connector.

4 Pull out the connector (Fig. 5/2).

5 Remove the protective cover completely.

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Fig. 5 Indicator lamp connector

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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Repair Instructions Replacing the filter sleeves of the prefilter and main filter

7 Replacing the filter sleeves of the prefilter

and main filter

The following replacement description of the prefilter and main filter refers to the maintenance kit 84 11 546 (see also ”Change information” and PMS procedure).

For a replacement description of the new prefilter and mainfilter (maintenance kit 84 14 501), see the Instructions for Use under "Maintenance

intervals/Removing the filter group".

7.1 Removing the filter assembly

1 Unscrew fixing screws of protective cover, for fixing

screws see Fig. 3.

2 Open the unit, see 6.

3 Unscrew both Phillips screws (Fig. 6/1).

4 Push ring (Fig. 7/2) back and hold.

5 Remove hoses (Fig. 7/3).

6 Remove the filter assembly.

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3

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Fig. 6 Removing the filter assembly

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

Fig. 7 Removing the filter assembly

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Repair Instructions Replacing the filter sleeves of the prefilter and main filter

7.2 Replacing the filter sleeve of the prefilter

Prefilter

1 Unscrew housing (Fig. 9/1) by hand.

2 Unscrew clasp nut (Fig. 9/2).

3 Remove filter sleeve (Fig. 9/3) and replace with new

one.

4 Tighten clasp nut (Fig. 9/2).

5 Remove O-ring (Fig. 9/4) from housing and replace it

with a new one.

6 Tighten housing (Fig. 9/1) by hand.

Fig. 8 Prefilter

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

Fig. 9 Replacing the filter sleeve

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Repair Instructions Replacing the filter sleeves of the prefilter and main filter

7.3 Replacing the filter sleeve of the main filter

Main filter

Fig. 10Main filter

1 Pull interlock (Fig. 11/1) downwards and hold.

2 Rotate housing (Fig. 11/2) until markings (II) are

aligned.

3 Remove housing (Fig. 11/2).

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2

Fig. 11Removing the main filter housing

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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Repair Instructions Replacing the filter sleeves of the prefilter and main filter

4 Unscrew clasp nut (Fig. 12/4).

5 Remove filter sleeve (Fig. 12/3) and replace with new

one.

6 Tighten clasp nut (Fig. 12/4).

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4

Fig. 12Replacing the filter sleeve

7 Remove O-ring (Fig. 13/5) from housing and replace it

with a new one.

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Fig. 13O-ring of the main filter

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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Repair Instructions Replacing the filter sleeves of the prefilter and main filter

8 Fit housing (Fig. 14/6) and rotate until markings (II) are

aligned and interlock (Fig. 14/7) engages audibly.

9 Pull housing (Fig. 14/6) slightly downwards to check

whether it is securely engaged.

7

6

Fig. 14Locking the main filter housing in place

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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Repair Instructions Replacing the filter sleeves of the prefilter and main filter

7.4 Replacing the suction filter

1 Unscrew both Allen screws (Fig. 15/1).

2 Unscrew pressure hose (Fig. 15/2) using open-end

wrench WAF 19.

3 Pull compressor out until filter housing (Fig. 15/3)

becomes accessible.

4 Rotate filter housing (Fig. 15/3) clockwise and remove.

5 Remove suction filter (Fig. 15/4) and replace with new

one.

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3

7.5 Fitting the filter assembly

Fit the filter assembly using the reverse method as used for disassembly.

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3

Fig. 15Replacing the suction filter

6 Re-install the suction filter (Fig. 15/4).

7 Re-install the compressor.

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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Repair Instructions Standby switch of the medical air compressor (8413419)

8 Standby switch of the medical air

compressor (8413419)

8.1 Resetting the working pressure range

1 Set up a ventilator including test circuit.

2 Connect to gas supply.

3 Connect external pressure regulator/gauge to standby

inlet. (Gas inlet connector is located at rear panel in the upper right area)

4 Connect the AIR central supply hose to the pressure

regulator hose.

Fig. 16Medical air compressor, open

5 Connect the AIR supply of the compressor/ventilator.

9 Connect ventilator and compressor to mains power

Do not connect to the O2 central supply. Do not connect to mains power supply yet.

supply.

10 Switch compressor on.

11 Switch ventilator to standby mode and activate Service

6 Remove the four screws from the rear panel of the

Mode to monitor internal pressures.

compressor.

12 Measure current switching points and set delta P to

7 Slide protective cover of compressor open (about 25

<15psi (<1 bar) (adjusting screws is located in the

cm).

lower portion of the switch).

8 Remove dark plastic cover from standby switch

(located directly behind the transformer on the right side and is secured with 2 screws).

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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Repair Instructions Standby switch of the medical air compressor (8413419)

With compressors that were shipped world-wide, proceed to work steps 13 to 17.

With compressors that were sold in the USA (as of serial number ARSB-0001), proceed to work steps 18 to 22.

13 Measure switching point and set starting pressure to 35

psi / 2.4 bar using external pressure regulator (adjusting screw is located in the center portion of the switch).

Compressor should start before the "AIR supply insufficient" alarm is triggered.

14 Measure switching point and set switch-off pressure to

50 psi / 3.4 bar using external pressure regulator (adjusting screw is located in the center portion of the switch).

15 Check settings of starting pressure (35 psi / 2,4 bar)

and switch-off pressure (50 psi / 3,4 bar) under flow conditions as specified in the PMS Procedure (ventilator settings: CMV, flow max. (AutoFlow off) , Vt max., rate 15, FiO2: 21).

16 Reassemble standby switch and compressor.

17 Remove external pressure regulator/gauge.

Fig. 17Setting the working pressure

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

18 Measure switching point and set starting pressure to 40

psi +

1.5psi (2.7 bar +0.1 bar) using external pressure regulator (adjusting screw is located in the center portion of the switch).

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Repair Instructions Standby switch of the medical air compressor (8413419)

20 Check settings of starting pressure (40 psi / 2.7 bar)

and switch-off pressure (46 psi / 3.2 bar) under flow conditions as specified in the PMS procedure (ventilator settings: CMV, flow max. (AutoFlow off) , Vt max., rate 15, FiO2: 21).

21 Reassemble standby switch and compressor.

22 Remove external pressure regulator/gauge.

Fig. 18Setting the working pressure

Compressor should start before the "AIR supply

insufficient" alarm is triggered.

19 Measure switching point and set switch-off pressure to

46 psi +

1.5 psi (3.2 bar +0.1 bar) using external pressure regulator (adjusting screw is located in the center portion of the switch).

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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Repair Instructions Change information

9 Change information

This change information is for information only, built-in components are only replaced with new versions in case of repair.

9.1 Prefilter housing

As of serial number ARML-0020, the prefilter housing is made of metal.

9.2 Thermostat (part of starter relay 84 12 856)

To avoid frequent alarms, the thermostat has been set from 40 °C to 75 °C. This change has been implemented in devices from serial number ARMM0054 (84 13 900) or ARMN-0101 (84 13 419), respectively.

Due to a change to the cable harness, only the green 110 V glow lamp is used in US compressors as of serial number ARSB-0001.

9.4 Starter relay

The starter relay has been provided with a new timer. This change has implemented in series units starting with the following serial numbers: ARNJ-0088 (8413900), ARNJ-0017 (8413419), and ARNK-0031 (8413893).

9.5 Filter unit, new (84 14 502 / see also Service Bulletin no. 1)

To protect the diaphragm drier more efficiently, the filter unit has been equipped with a finer fine filter. A new maintenance kit is also available for the new filter unit. This change has been implemented in series units starting with serial number ARMJ-0020.

9.3 Glow lamps

Due to a change in the circuit of 110 V compressors, defective glow lamps will be replaced only with 230 V glow lamps (Red glow lamp: 8413869, green glow lamp: 8413870).

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

Further information: According to Technical Service Bulletin no. 1, this filter unit has to be replaced as well when a faulty diaphragm drier is replaced (a notice to do so has to be attached to the outside of the unit) because the new maintenance kit, P/N 8413501, has to be installed, too.

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Repair Instructions Change information

9.6 Standby, changed setting of working pressure range

The pressure range has been changed (as described in the Repair Instructions, section 8) due to the pressure supply of 3 bar available in different countries. The pressure range has been changed in compressors as of serial number ARPB-0001. At the same time, a modified non-return valve (no spare part) has been installed in the storage.

9.7 Registration of compressors

As of serial number ARPD-0001, compressors are subject to registration. The units are shipped with new Instructions for Use/Operating Instructions containing the changed pressure settings.

Dräger Medical AG & Co. KGaA • Medical Air Compressor •Version 2.0

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