Service Manual and Parts List
36 Pages
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Page 1
Resuscitator for neonates and premature infants
Service Manual and Parts List
60
70
50
O2 % 80
40
90
30
100
21
8
7
6
70
5
60 50
4
40
5
80
4
70 80 60 50
40 30 20
3
-20 -10
10
30 20
3
6
8
7
-20 -10
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2 1
2 1
-2
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-2
-1
-1 0
Resusci Flow
Resusci Flow with blender
TO THE OPERATOR AND THE PERSON IN CHARGE OF MAINTENANCE AND CARE OF THE UNIT: 쎲 This Manual describes various inspections needed to ensure proper operation of the Resusci Flow and the Resusci Flow with blender, including instructions for troubleshooting, those procedures to change certain settings which are not mentioned in the Operation Manual, and important points to bear in mind when handling the unit. 쎲 Various inspections, including periodical inspection, are described in detail in this Manual. They should be carried out only by those who are fully familiar with the operation of the unit, having adequate technical knowledge and skills required in inspecting the unit. 쎲 If repairs seem to be required as a result of any inspection described in this Manual, either personnel with more advanced knowledge and skills should undertake the repair or you should contact your local Atom representative for repair service.
INTRODUCTION This Service Manual describes procedures for inspecting, repairing and changing the settings of the Resusci Flow. It also describes precautions and troubleshooting in alarm conditions. The procedures described in this Service Manual should be carried out only by those who are trained in the operation of the unit. Neither Atom Medical Corporation nor its representative will be responsible for the quality and performance of the unit if the unit should not be handled as instructed or if unauthorized parts should be used in repairs. It should be noted that any responsibility arising from inspecting, repairing or changing the settings of the unit lies with the person who carried it out. Read this Service Manual carefully and familiarize yourself thoroughly with its contents before inspecting, repairing or changing the settings of the unit. Keep this Manual where it is readily accessible for reference in case of need. For more detailed information on inspecting, repairing and changing the settings of the unit, contact your local Atom representative.
CAUTION This product is shipped without being disinfected. Be sure to clean and disinfect the unit before using it for the first time after purchase. Used parts and products past their lives should be disinfected and/or sterilized and then disposed of as medical wastes in accordance with applicable waste disposal laws and regulations.
SAFETY INFORMATION Please read the Manual carefully before operating the unit. Please follow the instructions in operating it.
z Basic Instructions 1. Medical institutions should be responsible for the maintenance and inspection of the unit. 2. When you have decided to have the unit maintained and inspected or when the unit is found in need of repair from the results of inspection, consult your local Atom representative, and 1) have the work carried out by a person with adequate technical knowledge and skills who has completed a training course specified by Atom, or 2) ask Atom to send a service engineer if no such a person with adequate technical knowledge and skills who has completed a training course specified by Atom is available, or 3) ask Atom for its approval of returning the unit for repair service. 3. Follow the instructions for the safe use of the unit. Read the operating instructions thoroughly before operating the unit. 4. Inspect the unit on a periodical basis. Periodical inspection is needed to use the unit in the optimum condition. 5. Never use the unit if it is found defective. Take proper measures so that a defective unit will be properly inspected and repaired and will not be used by mistake before it has its settings changed for normal operation. Such measures include q indicating on the unit that it is under inspection/repair and w keeping it away from the other devices that function properly.
1
x Definitions of Warning Indication Three levels of warning indication are used throughout this Manual and on the unit. They are defined as follows. A DANGER notice indicates an immediately hazardous situation which, if not avoided, DANGER: will result in death or serious injury, serious damage to property such as total loss of use of equipment, and a fire. A WARNING notice indicates an indirectly (potentially) hazardous situation which,
WARNING: if not avoided, will result in death or serious injury, serious damage to property such as total loss of use of equipment, and a fire. A CAUTION notice indicates a hazardous situation which, if not avoided, can result in CAUTION: minor or moderate injury, partial damage to equipment, and loss of data stored in computers.
c Definition of Symbols 1. Symbols to indicate danger, warning or caution Title and indication
Symbol
General attention Indicates unspecified general danger, warning or caution.
2. Symbols to prohibit action Symbol
Title and indication General prohibition Indicates unspecified general prohibition. Prohibition of disassembly Indicates prohibition of disassembly of the unit where it may cause an electric shock or other hazards. Prohibition of use of fire Indicates prohibition of use of fire where an external use of fire may cause the unit to ignite under certain conditions.
3. Symbols to give instructions for action Symbol
Title and indication General instruction Indicates unspecified general action on the part of the user.
4. Symbols of international standards (IEC) Symbol
Title and indication Date of manufacture Indicates the date when the unit was manufactured in the factory.
2
v General Precautions
CAUTION Only those who are qualified and authorized by Atom or by a repair shop properly trained in the handling of the unit should inspect, repair, change the settings of or disassemble and assemble the unit. In replacing a part, make sure that the new part you intend to use is the one specified by Atom. Using a part other than the one specified by Atom for replacement may compromise the safety feature of the unit. Do not disinfect the unit by immersing it in a medical fluid; the unit cannot be sterilized by autoclaving or with EOG. Follow the instructions given in the Operation Manual for cleaning and disinfecting the unit. After inspecting, repairing, disassembling and assembling, changing the settings of or cleaning and disinfecting the unit, check that the unit operates properly.
3
INTRODUCTION ... 1 PLEASE READ WITHOUT FAIL [1]
REFERENCE MATERIALS [7]
Circuit Diagrams ... 23 7-1. Resusci Flow ... 23 7-2. Resusci Flow with blender ... 23
Parts Identification ... 6 1-1. Resusci Flow ... 6 1-2. Resusci Flow with blender ... 7
[2]
Maintenance Inspection ... 8 2-1. Inspection before Use ... 8 2-2. Periodical Inspection ... 9 2-2-1. Preparation before inspection ... 9 2-2-2. Periodical Inspection ... 10 2-3. Inspection Checklist ... 11
APPENDIX [8]
Technical Data ... 24
[9]
Disposal ... 26
[10] Parts List ... 27 10-1. Resusci Flow ... 28 10-2. Resusci Flow with blender ... 30
MAINTENANCE
MAINTENANCE
PLEASE READ WITHOUT FAIL
CONTENTS
2-4. Periodical Replacement Parts ... 12
Cleaning and disinfection ... 13 3-1. Main Body ... 13 3-2. Patient Circuit ... 13
[4]
Troubleshooting ... 14 4-1. Troubleshooting of Pressure-related Problems ... 14 4-2. Troubleshooting in Alarm Conditions ... 15
DISASSEMBLY AND REPLACEMENT [5]
Replacement Procedures ... 16 the PMAX valve ... 16 5-1-1. Resusci Flow ... 16 5-1-2. Resusci Flow with blender ... 17 5-2. Replacing the Circuit Pressure Gauge ... 18 5-2-1. Resusci Flow ... 18 5-2-2. Resusci Flow with blender ... 19 5-3. Replacing the Blender ... 19 5-4. Replacing the Flowmeter ... 20
[6]
Illustrated Disassembly Procedures ... 21
REFERENCE MATERIALS
5-1. Replacing the PIP valve and
DISASSEMBLY AND REPLACEMENT
[3]
6-1. Resusci Flow ... 21 6-2. Resusci Flow with blender ... 21
APPENDIX
Parts Identification
[1] Parts Identification 1-1.
Resusci Flow
쎲 Front
쎲 Rear w
q
e
o
8 7 6 5
70
80
60 50
!0
40
4
30 20
3
-20 -10 -2
10
2 1
y
!1
-1 0
t r
No. q w e
i
Name Maximum pressure limit (PMAX) setting knob (with a protective cap) Circuit pressure gauge Peak inspiratory pressure (PIP) setting knob
r
Patient circuit connecting port
t
Mount
y
Handle
u
Gas supply port
i
Corrugated tube
o
PEEP/PIP switching port
!0
PEEP setting knob
!1
T-shaped flow valve (T piece with a PEEP valve)
!2
Face mask
❋ The patient circuit consists of i and !1.
6
u
!2
Function Used to set the operating pressure of the safety valve (the relief valve). This knob is covered with a protective cap because it is used only occasionally. Indicates the internal pressure of the circuit. Used to set the peak inspiratory pressure to the patient. The outlet of oxygen, air or an oxygen-air mixed gas to be supplied to the patient circuit. Used to mount the main body to the MF rail with the MF rail bracket. Used to carry the unit to another place. The port to supply oxygen, air or an oxygen-air mixed gas to the unit. The tube for connecting the unit with the T-shaped flow valve (the T piece with a PEEP valve). Occluded or released with a finger or a thumb to provide the peak inspiratory pressure (PIP) or the positive end-expiratory pressure (PEEP). Used to set the positive end-expiratory pressure (PEEP) to the patient. The corrugated tube and the face mask or the test bag are connected to this valve. Attached to the patient to supply the inspiration gas to the patient without leakage.
Parts Identification
Resusci Flow with blender
쎲 Front
쎲 Rear o
60
70
50
q
r
O2 % 80
40
i
PLEASE READ WITHOUT FAIL
1-2.
90
30
100
21
t w
4
!0
8
7 6
70 80 60 50
5
y
40 30 20
3
-20 -10
10 2 1
0
e
No. q w e r t y
-2
-1
u
Name Oxygen concentration setting knob Circuit pressure gauge Maximum pressure limit (PMAX) setting knob (with a protective cap) Flowmeter Flow rate setting knob Peak inspiratory pressure (PIP) setting knob
u
Patient circuit connecting port
i
Handle
o
Mount
!0 !1
!1
Piping connecting hose (for oxygen) connecting port Piping connecting hose (for air) connecting port
Function Used to set the oxygen concentration. Indicates the internal pressure of the circuit. Used to set the operating pressure of the safety valve (the relief valve). This knob is covered with a protective cap because it is used only occasionally. Indicates the gas flow rate in the range of 0~15L/min. Used to set the gas flow rate in the range of 0~15L/min. Used to set the peak inspiratory pressure to the patient. The outlet of oxygen, air or an oxygen-air mixed gas to be supplied to the patient circuit. Used to carry the unit to another place. Used to mount the main body to the MF rail with the MF rail bracket. Compatible oxygen supply pressure: 300~500kPa (3~5kgf/cm2) Compatible air supply pressure: 300~500kPa (3~5kgf/cm2)
7
Maintenance Inspection
[2] Maintenance Inspection CAUTION After repairing or reassembling the unit, check the following points to make sure that the unit operates properly. 앫 Inspection before use Check the basic functional operation of each part of the unit every time you are going to use the unit. 앫 Periodical inspection Periodical inspection should be conducted on an annual basis 앫 Parts requiring periodical replacement Some parts need to be replaced periodically depending on their period of use.
2-1.
Inspection before Use
Check the following points every time you are going to use the unit.
CAUTION If you should notice any strange smell, strange noise, overheating, strange vibration, missing parts or defective function in the inspection, stop using the unit immediately and contact your local Atom representative. Item to check Appearance
Pressure gauge
Corrugated tube
Gas supply port Connection of the patient circuit Differential pressure alarm (Resusci Flow with blender)
Pressure
Alarm function for the maximum pressure limit (PMAX)
8
Description The main body and the patient circuit should be neither broken nor deformed. (Other wise, the infant and/or the user may get injured due to breakage, etc.) The pointer of the circuit pressure gauge should indicate 0cmH2O. (Otherwise, the supply pressure may deviate from the setting.) The tube should not be broken and there should be no foreign matters inside. (Otherwise, the infant may swallow them accidentally or the patient circuit may get occluded.) It should be connected securely. (Otherwise, the pressure performance may decrease.) The patient circuit should be connected securely. (Otherwise, the pressure performance may decrease.) An alarm should sound when either the piping connecting hose for oxygen or the piping connecting hose for air is disconnected. The circuit should be connected correctly. The peak inspiratory pressure (PIP) should be applied when the PEEP/ PIP switching port is occluded. The positive end-expiratory pressure (PEEP) should be applied when the PEEP/PIP switching port is released. An alarm should sound when the peak inspiratory pressure (PIP) setting knob is turned fully clockwise at the flow rate of 15L/min and the PEEP/ PIP switching port is occluded.
Maintenance Inspection
2-2.
Periodical Inspection
Contact your local Atom representative annually for periodical inspection. If any trouble is detected in periodical inspection, contact your local Atom representative.
2-2-1. Preparation before inspection Item to check
Connecting the patient circuit
Inspection of the pressures
Oxygen concentration (Resusci Flow with blender)
MAINTENANCE
Connecting the gases
Description q Resusci Flow Connect a hose to which a blender which has either an oxygen flowmeter or a flowmeter is connected to the gas supply port of the unit. w Resusci Flow with blender Connect the high-pressure hoses to the “medical oxygen connecting port” and the “medical air connecting port” on the wall outlet of the central piping system of your facilities. q Connect the patient circuit properly to the main body. w Connect the test bag to the open connecting port of the T-shaped flow valve. q Let a gas flow and check that the peak inspiratory pressure (PIP) is applied when the PEEP/PIP switching orifice is occluded. Also check that the peak inspiratory pressure (PIP) can be adjusted by turning the peak inspiratory pressure (PIP) setting knob. w Check that the positive end-expiratory pressure (PEEP) is applied when the PEEP/PIP switching orifice is released. Also check that the positive end-expiratory pressure (PEEP) can be adjusted by turning the positive end-expiratory pressure (PEEP) setting knob while pulling it up. Obtain an oxygen analyzer. q Supply 100% oxygen at the flow rates of 2L/min and 10L/min. Check that the oxygen concentration can be adjusted with the accuracy of 앐3% at each flow rate.
9
Maintenance Inspection
2-2-2. Periodical Inspection Item to check
Accuracy of oxygen concentration (Resusci Flow with blender)
Description
Procedure
The oxygen concentration of the mixed gas should be within the specified range listed below.
❋1) Set the oxygen concentration setting knob to 21%. Measure the oxygen concentration using a calibrated oxygen analyzer. ❋2) Set the oxygen concentration setting knob to 60%. Measure the oxygen concentration using a calibrated oxygen analyzer. ❋3) Set the oxygen concentration setting knob to 100%. Measure the oxygen concentration using a calibrated oxygen analyzer. Set the flow rate to 0L/min and check that no mixed gas is leaking at the screws, the knobs or the connections.
<Specified range> Setting
Lower limit
Upper limit
18% or higher❋1 57% or higher❋2 97% or higher❋3
24% or lower❋1 63% or lower❋2 103% or lower❋3
21%❋1 60%❋2 100%❋3
Air tightness (Resusci Flow with blender)
Accuracy of flow rate (Resusci Flow with blender)
The flow rate should be 0L/min when the flow rate setting knob is turned fully to the OFF position. The flow rate should be within the specified range listed below. <Specified range> Setting 10L/min
Appearance Pressure gauge Corrugated tube
Alarm function for the maximum pressure limit (PMAX)
10
Lower limit 9L/min or higher
Upper limit 11L/min or lower
No part of the main body should be broken. The pointer of the circuit pressure gauge should indicate 0cmH2O. The tube should not be broken and there should be no foreign matters inside.
An alarm should sound normally.
Set the flow rate to 10L/min and measure the flow rate using an oxygen flowmeter. ❋ To determine the flow rate accuracy, remove the piping in the unit and measure the flow rate just behind the flowmeter. Inspect the unit visually. Inspect the pointer visually. Inspect the tube visually. 1) Set the flow rate to 15L/min. and turn the peak inspirator y pressure (PIP) setting knob fully clockwise. 2) Check that an alert sounds when you occlude the PEEP/PIP switching port.
Maintenance Inspection
2-3.
Inspection Checklist
Product name Serial number Installation site
Resusci Flow, Resusci Flow with blender Date of inspection
쐽 Inspection before use Description
Judgment
Appearance Pressure gauge Corrugated tube Gas connecting port Connection of the patient circuit Differential pressure alarm (Resusci Flow
Is the main body intact and fixed securely? Is the pointer of the circuit pressure gauge indicating 0cmH2O? Is the corrugated tube free of breakage and any foreign matters inside? Is the gas connecting port connected securely without any leakage?
YES / NO YES / NO YES / NO YES / NO
Is the patient circuit connected securely?
YES / NO
Does an alarm sound when either the oxygen supply source or the air supply source is disconnected?
YES / NO
with blender)
Pressure
Alarm function for the maximum pressure limit (PMAX)
Is the circuit connected properly? Is the peak inspiratory pressure (PIP) applied when the PEEP/PIP switching port is occluded? Is the positive end-expiratory pressure (PEEP) applied when the PEEP/ PIP switching port is released? Does an alarm sound when the peak inspiratory pressure (PIP) setting knob is turned fully clockwise at the flow rate of 15L/min and the PEEP/ PIP switching port is occulded?
YES / NO
Description
Judgment
MAINTENANCE
Item to check
YES / NO YES / NO
YES / NO
쐽 Periodical inspection Item to check
Accuracy of oxygen concentration
Air tightness Accuracy of flow rate (Resusci Flow with blender) Appearance Pressure gauge Corrugated tube Alarm function for the maximum pressure limit (PMAX)
Is the oxygen concentration of the mixed gas within the specified range when the oxygen concentration setting knob is set to 21%? Is the oxygen concentration of the mixed gas within the specified range when the oxygen concentration setting knob is set to 60%? Is the oxygen concentration of the mixed gas within the specified range when the oxygen concentration setting knob is set to 100%? Is the flow rate 0L/min when the flow rate setting knob is turned fully to the OFF position? Is the flow rate within the specified range when the flow rate is set to 10L/ min? Is the main body intact and fixed securely? Is the pointer of the circuit pressure gauge indicating 0cmH2O? Is the corrugated tube free of breakage and any foreign matters inside? Does an alarm sound when the peak inspiratory pressure (PIP) setting knob is turned fully clockwise at the flow rate of 15L/min and the PEEP/ PIP switching port is occulded?
YES / NO YES / NO YES / NO YES / NO YES / NO YES / NO YES / NO YES / NO YES / NO
11
Maintenance Inspection
2-4.
Periodical Replacement Parts
Periodical replacement parts are those which gradually deteriorate and wear down with use. They need periodical replacement to keep the accuracy and performance of the unit at a proper level. Timing of replacement varies with the frequency and conditions of use. Consult your local Atom representative for replacement. Part name PIP valve PMAX valve Circuit pressure gauge Patient circuit connecting port Flowmeter ❋ Replace the test bag when necessary.
12
Period of use 3 years 3 years 5 years 3 years 5 years
Reason for replacement Deterioration of the materials Deterioration of the materials Decreased accuracy Deterioration of the materials Decreased accuracy
Cleaning and Disinfection
[3] Cleaning and disinfection WARNING Before cleaning and disinfecting the unit, be sure to stop the oxygen supply to the unit and disconnect the unit from the oxygen supply source. Before cleaning or maintaining the unit, be sure to stop the oxygen supply to the unit and disconnect the unit from the oxygen supply source. Cleaning or maintaining the unit in an environment where the oxygen concentration is high may cause a fire or an explosion.
After cleaning and disinfection, reassemble the removed parts correctly and make sure that the unit operates normally. Obtain a soft clean cloth and a disinfectant solution for cleaning and disinfection.
MAINTENANCE
Clean and disinfect the unit whenever you notice any dirt or stains, which might cause infection, on the unit.
❋ Recommended disinfectant solutions include: 앫 Benzalkonium chloride aqueous solution 앫 Benzethonium chloride aqueous solution 앫 Chlorhexidine aqueous solution 앫 Alkyldiaminoethylglycine hydrochloride aqueous solution Never use the above agents undiluted. ❋ Do not use any abrasive, cleaner, alcohol, acetone or other solvent for cleaning and disinfection. Do not autoclave.
3-1.
Main Body
Clean and disinfect the main body, and then wipe it lightly with a soft dry cloth.
CAUTION Do not use ethanol to disinfect the plastic parts of the unit. Avoid using sodium hypochloride, which will corrode metals.
3-2.
Patient Circuit
The patient circuit (the T-shaped flow valve and the corrugated tube) is for single patient use only.
CAUTION Do not use ethanol to disinfect the plastic parts of the unit. Avoid using sodium hypochloride, which will corrode metals.
13
Troubleshooting
[4] Troubleshooting CAUTION If the unit seems to be defective, indicate on the unit that it is out of order and contact your local Atom representative. Check the following points before requesting repair service.
4-1.
Troubleshooting of Pressure-related Problems Trouble
The pressure does not rise.
The pressure rises too high.
The oxygen concentration does not rise.
The oxygen concentration rises too high.
PIP cannot be set successfully.
PEEP cannot be set successfully.
14
Check 앫 Check that all the piping is connected securely. 앫 Check that there is no leakage in the circuit except for a functional relief. 앫 Check that the circuit is not occluded due to the clogging of foreign matters. 앫 Check that the pressures of the gas supply sources are within the specified range. 앫 Check that all the piping is connected securely. 앫 Check that the circuit is not occluded due to the clogging of foreign matters. 앫 Check that the pressures of the gas supply sources are within the specified range. 앫 Check that the flow rate is not too low. 앫 Check that there is no leakage in the circuit. 앫 Check that the pressures of the gas supply sources are within the specified range. 앫 Calibrate the oxygen concentration with an oxygen analyzer if necessary. 앫 Check that the pressures of the gas supply sources are within the specified range. 앫 Calibrate the oxygen concentration with an oxygen analyzer if necessary. 앫 Check that the test bag is connected properly to the T-shaped flow valve. 앫 Check that the PEEP/PIP switching orifice is occluded properly. 앫 Check that the test bag is connected properly to the T-shaped flow valve. 앫 Check that the PEEP/PIP switching orifice is released. 앫 Check that the PEEP setting knob is turned while being pulled up properly.
Troubleshooting
4-2.
Troubleshooting in Alarm Conditions Trouble
Differential pressure alarm
Action to take 앫 Check that the unit is connected to the oxygen supply source and the air supply source securely. 앫 Check that the pressures of the gas supply sources are within the specified range. 앫 Check that there is no leakage in the circuit.
MAINTENANCE 15
Replacement Procedures
[5] Replacement Procedures WARNING Before replacing a part, be sure to stop the oxygen supply to the unit and disconnect the unit from the oxygen supply source. Use only a part specified by Atom. Using a part which is not specified by Atom may result in trouble and deteriorated performance of the unit.
5-1.
Replacing the PIP valve and the PMAX valve Part name PIP valve PMAX valve
Part No. (Code No.) 95543 95544
5-1-1. Resusci Flow 앫 Replacing the PIP valve (1)
Remove the rear cover of the unit. Be careful not to break the locking claws on its bottom.
(2)
Disconnect the piping connected to the PIP valve to be replaced.
Spacer with screw (Use a flat head screwdriver.)
Flat head screw (Remove the protective sticker.)
CAUTION 쎲 If you apply an excessive force to the PIP valve in disconnecting the piping connected to it, the PIP valve may become damaged. Be sure to hold the PIP valve with one hand when disconnecting the piping. (3)
Pry open the cap on the PIP setting knob on the front of the unit. Loosen the nut with a box wrench (9mm) and remove the knob.
Flat head screw
8
7 6
4
70
PIP setting knob
80
60 50
5
Box wrench
40 30 20
3
-20 -10
10
2 1
Locking claw
-2
-1 0
Cap of the PIP setting knob
16
(4)
Remove the four screws fixing the PIP valve.
(5)
After replacing the PIP valve, reassemble the unit in reverse order of disassembly and check that the unit operates normally.
Replacement Procedures
앫 Repalcing the PMAX valve (1)
Remove the rear cover of the unit. Be careful not to break the locking claws on its bottom.
(2)
Disconnect the piping connected to the PMAX valve to be replaced.
CAUTION 쎲 If you apply an excessive force to the PMAX valve in disconnecting the piping connected to it, the PMAX valve may become damaged. Be sure to hold the PMAX valve with one hand when disconnecting the piping. (3)
Remove the three screws fixing the PMAX valve.
(4)
Loosen the PMAX setting knob with a box wrench (2mm) and remove it.
(5)
Spacer with screw (Use a flat head screwdriver.)
After replacing the PMAX valve, reassemble the unit
Flat head screw (Remove the protective sticker.)
Flat head screw
Locking claw
5-1-2. Resusci Flow with blender 앫 Replacing the PIP valve (1)
Remove the rear cover of the unit (see “[6] Illustrated Disassembly Procedures”).
(2)
Remove the blender fixing plate and then disconnect the piping connected to it.
(3)
Disconnect the piping connected to the PIP valve to be replaced.
DISASSEMBLY AND REPLACEMENT
in reverse order of disassembly and check that the unit operates normally.
CAUTION 쎲 If you apply an excessive force to the PIP valve in disconnecting the piping connected to it, the PIP valve may become damaged. Be sure to hold the PIP valve with one hand when disconnecting the piping. (4)
Pry open the cap on the PIP setting knob on the front of the unit. Loosen the nut with a box wrench (9mm) and remove the knob. Remove the four screws fixing the PIP valve.
(6)
After replacing the PIP valve, reassemble the unit in reverse order of disassembly and check that the unit operates normally.
70
5
60 50
4
40 30 20
3
(5)
8
7 6
Box wrench
-20 -10
10
2 1
PIP setting knob
80
-2
-1 0
Cap of the PIP setting knob 17
Replacement Procedures
앫 Repalcing the PMAX valve (1)
Remove the rear cover of the unit (see “[6] Illustrated Disassembly Procedures”).
(2)
Remove the blender fixing plate and then disconnect the piping connected to it.
(3)
Disconnect the piping connected to the PMAX valve to be replaced.
CAUTION 쎲 If you apply an excessive force to the PMAX valve in disconnecting the piping connected to it, the PMAX valve may become damaged. Be sure to hold the PMAX valve with one hand when disconnecting the piping. (4)
Remove the three screws fixing the PMAX valve.
(5)
Loosen the PMAX setting knob with a box wrench (2mm) and remove it.
(6)
5-2.
After replacing the PMAX valve, reassemble the unit in reverse order of disassembly and check that the unit operates normally.
Replacing the Circuit Pressure Gauge Part name
Part No. (Code No.)
Circuit pressure gauge
95545
5-2-1. Resusci Flow (1)
Remove the rear cover of the unit.
(2)
Disconnect the piping connected to the circuit pressure gauge.
(3)
Remove the two screws fixing the metal holder of the circuit pressure gauge.
(4)
After replacing the circuit pressure gauge, reassemble the unit in reverse order of disassembly and check that the unit operates normally.
Spacer with screw (Use a flat head screwdriver.)
Flat head screw
Flat head screw (Remove the protective sticker.)
Locking claw
CAUTION 쎲 If the pointer of the circuit pressure gauge does not indicate 0cmH2O after replacing the circuit pressure gauge, adjust the adjustment screw on the rear of the circuit pressure gauge for the pointer to indicate 0cmH2O.
18
Adjustment screw
Replacement Procedures
5-2-2. Resusci Flow with blender (1)
Remove the rear cover of the unit (see “[6] Illustrated Disassembly Procedures”).
(2)
Remove the blender fixing plate and then disconnect the piping connected to it.
(3)
Disconnect the piping connected to the circuit pressure gauge.
(4)
Remove the two screws fixing the metal holder of the circuit pressure gauge.
(5)
After replacing the circuit pressure gauge, reassemble the unit in reverse order of disassembly and check that the unit operates normally.
CAUTION
5-3.
Adjustment screw
Replacing the Blender Part name
Part No. (Code No.)
Blender
95546
DISASSEMBLY AND REPLACEMENT
쎲 If the pointer of the circuit pressure gauge does not indicate 0cmH2O after replacing the circuit pressure gauge, adjust the adjustment screw on the rear of the circuit pressure gauge for the pointer to indicate 0cmH2O.
WARNING Before replacing the blender, be sure to stop the oxygen supply to the unit and disconnect the unit from the oxygen supply source. After replacement, check that the unit operates normally.
(1)
Remove the rear cover of the unit (see “[6] Illustrated Disassembly Procedures”).
(2)
Remove the blender fixing plate and then disconnect the piping connected to it.
(3)
Remove the bezel of the blender.
(4)
Disconnect the piping connected to the blender.
(5)
Remove the four screws fixing the blender from the rear and pull up the blender.
(6)
After replacing the blender, reassemble the unit in reverse order of disassembly and check that the unit operates normally.
19
Replacement Procedures
5-4.
20
Replacing the Flowmeter Part name
Part No. (Code No.)
Flowmeter
95547
(1)
Remove the rear cover of the unit (see “[6] Illustrated Disassembly Procedures”).
(2)
Remove the blender fixing plate and then disconnect the piping connected to it.
(3)
Disconnect the piping connected to the flowmeter.
(4)
Pr y open the cap of the flow rate setting knob on the front of the unit. Loosen the nut with a box wrench (9mm) and remove the knob.
(5)
Loosen the knurled knob and remove the silicone seal and the spacer.
(6)
Remove the four screws fixing the flowmeter.
(7)
After replacing the flowmeter, reassemble the unit in reverse order of disassembly. Turn the flow rate setting knob to OFF and make sure that no oxygen leaks. Check that the unit operates normally.
Spacer Silicone seal Knurled knob