Service Manual Model PM4155 300 Held Drive | Northampton, PA 18067 precisionmedical.
Contents Preface ..........................................................................................................................................................................................................................1 Definition of terms ..............................................................................................................................................................................................1 Safety information - Warnings and Cautions ....................
Preface Precision Medical, Inc. 300 Held Drive Northampton, PA 18067 USA Customer Service / Tech Support Phone: 1-610-262-6090 Phone: 1-800-272-7285 Fax: 1-610-262-6080 Web: www.precisionmedical.com This manual is intended to guide and help a qualified service technician in the safe handling, service, and repair and performance verification of the PM4155 “Live Active Five” Portable Oxygen Concentrator.
Component Description Oxygen Outlet Fitting Battery Handle Oxygen Outlet Fitting Air Inlet with Filter Display Screen Air Outlet Pulse Selection Buttons (1-5) Alert Indicator Off Button Pause Alert Button Battery Latch Battery Handle Battery External Power Connector Serial # Label Air Outlet 2
General Disassembly Tools and equipment required: • #1 Phillips screwdriver 1. Remove battery (508561) from unit 2. Place unit upside down on a level surface 3. Using screwdriver, take out 5 bottom screws (507128) and place to the side 4. Take bottom case (508535) off of unit and place to the side 5. On back of unit, gently pry open the two side case pieces. Only pry open the back of the case. 6. Slide side panels off of unit and place to the side. 7. Flip unit right side up.
Sieve Bed Assembly Replacement (508697) Tools and equipment required: • #1 Phillips screwdriver Disassembly 1. Turn concentrator off, and remove the battery and external power from unit. 2. Turn unit upside down, and place on soft surface. Remove screws and bottom cover. 3. Pull upward on the Pull String Loop while holding the device down to remove sieve bed assembly.
Reassembly 1. Remove 4 plugs from new sieve bed assembly and slide it into the concentrator. 2. Gently push until sieve bed replacement is fully seated, flush with bottom surface. Replace bottom cover and secure screws. 3. Turn unit upright and insert battery. Gently push until battery is locked in place. Registration 1. Press and hold the Audio Pause button to enter the menu. 2. Press the 5 button to navigate to the Sieve Beds option. 3. Press the 3 button to select the Sieve Beds option. 4.
Air Outlet Filter Replacement (508583): Tools and equipment required: • Hex (Allen) wrench Disassembly 1. Remove cannula. 2. Using a clean hex (Allen) wrench, carefully remove the outlet by unscrewing it counter-clockwise. 3. The filter will be visible in the rear of the outlet once it is removed. 4. Remove the filter and inspect the outlet to make sure it is free of debris. Reassembly 1. Install a replacement filter. 2. Carefully screw the outlet fitting back into the recess clockwise.
PC Board Replacement (508552): *Ensure to follow Electrostatic Discharge procedures to avoid damage to electronic components Tools and equipment required: • #1 Phillips screwdriver • Needle nose pliers Disassembly 1. Follow steps 1 thru 7 of the “General Disassembly” section in this manual. 2. Pull green tubing (506400) off of the boss on the battery separator plate (508539). Green Tubing (506400) Boss Battery Separator Plate (508539) 3.
4. On back of battery separator plate (508539), remove the 2 top screws (508662) that attach the battery separator plate (508539) to the top case (508534). Top Case (508534) Screw x2 (508662) Battery Separator Plate (508539) 5. Carefully turn top case (508534) toward PC board (508552) and remove the 2 ribbon cables from the PC board. PC Board (508552) Top Case (508534) Ribbon Cables 6.
7. Using pliers, carefully remove the tubing that connects to the product tank pressure sensor and dose tank pressure sensor on the PC board (508552). Also remove both tubing pieces from the inspiratory sensor on the PC Board (508552). Dose Tank Pressure Sensor Inspiratory Sensor Tubing Product Tank Pressure Sensor Tubing 8. Pull the PC board away from the unit and disconnect the wires from the fan (508575) and supply valve (508527).
Reassembly 1. With new PC board, connect the wires from the compressor assembly and power interface board to the bottom of the PC board. 2. Connect the wires from the fan and supply valve. 3. Attach the board to the unit by screwing in the screw (508351) that holds the PC board (508552) to the top separator plate (508538). Then screw in the 2nd screw (503956) that holds the PC board (508552) to the battery separator plate. 4. Connect the 2 tubes for the inspiratory sensor on the PC board.
Compressor Replacement (508525): Tools and equipment required: • #1 Phillips screwdriver • Needle nose pliers • Small diagonal wire cutters Disassembly 1. Follow steps 1 thru 7 of the “General Disassembly” section in this manual. 2. Remove the screw (503956) holding the PC board (508552) onto the battery separator plate (508539). Battery Separator Plate (508539) Screw (503956) PC Board 3. On the bottom of the PC board, disconnect the wires from the compressor assembly (508525).
4. Cut and remove the zip-tie (502776) from the compressor vacuum inlet. Disconnect the tubing from the compressor vacuum inlet. Compressor Vacuum Inlet Zip-tie (502776) 5. Cut and remove the zip-tie (502776) from the compressor pressure outlet elbow (505806). Disconnect the tubing from the compressor pressure outlet elbow (505806). Zip-tie (502776) Tubing Compressor Pressure Outlet Elbow Compressor Pressure Outlet Elbow 6. Disconnect the tubing from the compressor pressure inlet elbow (505806).
7. Remove the 2 screws (503264) holding the compressor assembly (508525) to the silicone isolation mount (508554). Screw (503264) Silicone Isolation Mount 8. Remove the compressor assembly (508525) from the silicone isolation mount (508554).
Reassembly 1. Place the new compressor assembly (508525) onto the silicone isolation mount (508554). 2. Connect the hose from the compressor inlet filter assembly (508611) onto the compressor pressure inlet elbow (505806). 3. Connect the hose from the cooling coil (508677) onto the compressor pressure outlet elbow (505806). Place new ziptie (502776) around the tubing on the compressor pressure outlet elbow. Make sure the zip-tie is squeezing the tube tightly. 4.
Oxygen Sensor Replacement (508419): *Ensure to follow Electrostatic Discharge procedures to avoid damage to electronic components Tools and equipment required: • #1 Phillips screwdriver • Needle nose pliers Disassembly 1. On back of battery separator plate (508539), remove the 2 top screws (508662) that attach the battery separator plate (508539) to the top case (508534). Top Case (508534) Screw x2 (508662) Battery Separator Plate (508539) 2.
3. Disconnect the wires from the PC board to the O2 sensor (508419). O2 Sensor O2 Sensor Barb Tubing O2 Sensor Wires 4. Disconnect the tubing from both barbs on the O2 sensor (508419). O2 Sensor Barbs O2 Sensor Tubing 5. With one hand, pull back on the locking tab located on the top separator plate (508538). With the other hand, pull the O2 sensor (508419) up and remove.
Reassembly 1. With the new O2 sensor (508419), align the O2 circuit board with the slots in the top separator plate (508538). Make sure the wire connector is upward. O2 Sensor Circuit Board Slot 2. Slide the O2 sensor into the slots and press until the O2 sensor locks into place with the locking tab. Locking Tab 3. Connect the wires from the PC board to the O2 sensor. 4. Reconnect the tubing on the barbs of the O2 sensor (508419). 5.
Test/Autopulse Mode Depending on your device version, To enter the Test/Autopulse Mode: Press and hold Pause Alert Button. While continuing to hold down Pause Alert Button, press OFF. Release both buttons and select the setting (1-5) to be tested. OR Press 5-1-3-OFF Select the Pulse Setting (1-5) to be tested. Press Pause Alert Button to alternate between screens. To exit the test mode, press OFF. Checking the Oxygen Purity 1.
Warnings This device is not to be used for support or to sustain life. This device is intended to provide supplemental oxygen only. This device is not intended for newborn and infant use. Precision Medical Inc, and your equipment provider are accountable for ensuring the compatibility of the device and all of the parts or accessories used. Use of accessories or replacement parts not listed in this Manual may cause adverse effects to basic safety or essential performance of the device and will void warranty.
Specifications Dimensions: Height: 8.4 in (21.4 cm), Width: 3.2 in (8.3 cm), Depth: 8.5 in (21.6 cm) Weight: 5.0 lbs (2.2 kg) with single battery and no carry bag Altitude: Up to 10000 ft (3048 m) above sea level Operating Temperature: 41˚F to 104˚F (5˚C to 40˚C) Operating Atmospheric Pressure: 700-1060 hPa Storage / Transport Temperature: -13˚F to 158˚F (-25˚C to 70˚C) Operating / Storage / Transport Conditions: Up to 90% non-condensing relative humidity, water vapor pressures up to 1.
Recommended Preventative Maintenance The device is specifically designed to minimize routine preventive maintenance. Except for tasks described below, only trained personnel should perform preventive maintenance or performance adjustments on the device and its equipment. Users should contact your provider or Precision Medical for service. WARNING Prior to cleaning, ensure the device is turned off, unplug any external power sources and remove battery.
Cleaning and Disinfection between Users To prevent infection and eliminate possible pathogen exchange between users due to contamination, cleaning and disinfection of the device and its accessories shall be performed by qualified personnel when used between users. 1. Remove battery and disconnect all external power from the device. 2. Dispose of and replace all accessories not suitable for multiple users including cannulas and oxygen tubing. 3.
If the condition persists, the alert will reoccur and the user can push the Paused Alert button again. This cycle will repeat until the alert condition is corrected. If an additional alert condition occurs during the silence period, the silence period ends and the alert indicator LED will flash along with an audible beep. The specific condition that generated the alert is available by viewing the alert fault code in the Display Screen.
Oxygen Concentration Output Is Low Symptom Probable Cause Solution(s) Device is warming up. Wait 10 minutes for the unit to deliver oxygen at the prescribed concentration. Sieve beds are at end of life cycle. Install new Sieve Bed Replacement (508697) Device malfunctioning. If the condition persists, change to an alternate oxygen source and contact your home care provider or Precision Medical.
