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ZOLL 731 Series Service Manual

ZOLL 731 Series Service Manual

Ventilator
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731 Series Ventilator
Service Manual
Models: Z Vent, EMV+, Eagle II, and AEV
906-0731-04-01 Rev. D

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Summary of Contents for ZOLL 731 Series

  • Page 1 731 Series Ventilator Service Manual Models: Z Vent, EMV+, Eagle II, and AEV 906-0731-04-01 Rev. D...
  • Page 2 The issue date for the ZOLL 731 Series Ventilator Service Manual (REF 906-0731-04-01 Rev. D) is August 2024. Copyright © 2024 ZOLL Medical Corporation. All rights reserved. ZOLL, Z Vent, EMV+, AEV, Eagle II, Smart Help are registered trademarks and/or trademarks of ZOLL Medical Corporation in the United States and/or other countries.

  • Page 3: Table Of Contents

    Test Sequences, RCS 9.1 ................3-12 Hardware Maintenance Routines ..............3-16 Oxygen Filter Replacement ................3-17 Disk Filter Replacement ................. 3-18 Main Battery Replacement ................3-19 RTC Battery Replacement ................3-20 RCS Setups ....................3-21 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...
  • Page 4 Warnings ..................... 5-2 Electrical Safety Testing Procedure ..............5-3 Leakage Testing ..................... 5-3 Touch Points for Electrical Leakage Testing ............5-5 Chapter 6: Ventilator & Calibration Troubleshooting Introduction ....................6-1 Part I — Troubleshooting Overview ..............6-2 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 5 Part III — Service Codes ................6-38 Retrieving Service Codes (Version 5 Ventilators only) ........6-38 Service Codes - Version 5 ................6-39 Service Codes - Version 4 ................6-59 Writing Serial Numbers to the Ventilator ............6-77 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...
  • Page 6 906-0731-04-01 Rev. D...

  • Page 7: Chapter 1: General Information

    The 731 Series Ventilator Service Manual provides information that trained service technicians need for the safe and effective repair of ZOLL ventilators. It is important that all persons servicing these devices read and understand all information contained within. Before performing service...

  • Page 8: Related Publications

    Service Manual Updates A revision letter (A, B, C, ...) and publication date (month/year) for this manual appears on the inside of the front cover. Contact ZOLL to determine the latest manual release and to ensure you’re referencing the latest revision.

  • Page 9: Acronyms And Abbreviations

    Fraction of Inspired Oxygen Heat and Moisture Exchanger HMEF Heat and Moisture Exchanger/Bacterial Viral filter combined HP O2 High Pressure Oxygen Hertz (as in frequency, cycles per second) Inspiratory to Expiratory time ratio 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...
  • Page 10 Pressure Support Pounds per Square Inch Radio Frequency Real Time Clock Room Temperature Vulcanizing SIMV Synchronized Intermittent Mandatory Ventilation Smart Pneumatic Module User Interface Module United States Pharmacopeia Volts AC Volts DC Tidal Volume Work Of Breathing www.zoll.com 906-0731-04-01 Rev. D...

  • Page 11: Device Symbols

    Defibrillation Proof: Indicates the degree of protection against electrical shock. BF Symbol: Protection against electric shock, Type B with floating (F-type) parts. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...
  • Page 12 The appearance of this label may differ (40 - 87 PSIG) depending on the age of the ventilator. Exhalation Valve (Top Faceplate) The appearance of this label may differ depending on the age of the ventilator. Exhaust, Do Not Occlude (Top Faceplate) www.zoll.com 906-0731-04-01 Rev. D...
  • Page 13 Medium Priority Alarm Low Priority Alarm External Power: Indicates the device is oper- ating using an external power source. No External Power: Indicates the device is operating without an external power source. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...

  • Page 14: Conventions

    General Warnings • The information contained herein is restricted for use by personnel trained by ZOLL Medical Corporation in the care and servicing of this product. ZOLL does not authorize nor assume any obligations resulting from unauthorized servicing of its products, nor will it be held liable for any injuries or damages incurred therefrom.

  • Page 15: Contacting Technical Support

    • Purchase order for a device with an expired warranty Returning a Ventilator for Service Before sending a ventilator to the ZOLL Technical Support Department for repair, obtain a service request (SR) number from a service representative. The Li-ion battery should remain secured inside the ventilator. Follow any additional local or international shipping protocols regarding Lithium Ion batteries, as required.
  • Page 16 405 Britannia Road East, units 17-19 Mississauga, Ontario, L4Z3E6, Canada Attention: Technical Support Department (SR number) Phone: 1-866-442-1011 In other locations The nearest authorized ZOLL Medical Corpo- ration representative. To locate an authorized service center, con- tact ZOLL International technical support at intlservice@zoll.com 1-10 www.zoll.com...

  • Page 17: Chapter 2: Device Overview & Architecture

    Device Overview & Architecture Overview This chapter provides a general overview of the various models within the 731 Series of ventila- tors along with detailed information covering system and pneumatic architectures. The below list of topics are covered in the following pages: •...

  • Page 18: Ventilator Models

    The AEV model’s is designed for managing ventilator support patients during ambulance transport. Its ventilation modes (AC, CPAP with PS, and BL) are specifically chosen to be consistent with pre-hospital care provider's operating procedures. www.zoll.com 906-0731-04-01 Rev. D...

  • Page 19: Main Features

    Fresh Gas/Emergency Air Side Enables the ventilator internal compressor to use Intake ambient air and acts as an anti-asphyxia valve. Handle Side Provides a convenient and comfortable way to carry the ventilator. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...

  • Page 20: Controls And Indicators

    The Accept/Select button allows the user to accept parameter value settings, acknowledge popup messages, and accept menu choices Manual Breath Button/ Enables the user to deliver a manual breath and measure Plateau Plateau Pressure Pressure. Plateau Pressure is an optional ventilator control. www.zoll.com 906-0731-04-01 Rev. D...

  • Page 21: Indicators

    Indicators Indicators The ventilator’s indicators consist of the following: Indicator Description LCD Display Displays settings, patient data, and alarm information. LED Array Indicates operational status (Red, Yellow, or Green). 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...

  • Page 22: Pneumatic Diagram

    Pneumatic Diagram Pneumatic Diagram www.zoll.com 906-0731-04-01 Rev. D...

  • Page 23: Functional Descriptions

    There is an anti-asphyxia valve connected to the intake assembly to allow a patient to breathe ambient air should the ventilator fail. The intake is designed to accept additional filters through an integrated 22mm connection and also incorporates a connection for a C2A1 style 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...

  • Page 24: Environmental Sensing

    Functional Descriptions chemical/biological filter. The assembly acts as a means to entrain supplemental low flow oxygen using ZOLL's O2 Reservoir kit. See the ZOLL 731 Series Ventilator Operator’s Guide for detailed use. Environmental Sensing The 731 ventilator incorporates sensors for ambient and device temperatures and barometric pressure/altitude.
  • Page 25 This chapter does not cover the detailed calibration process or provide step by step instruction for the calibration of ventilators. Rather, this chapter provides a general overview for reference purposes. For additional information and instruction on using the Remote Calibration System (RCS), refer to the RCS Operator’s Guide (REF 9650-000859-01). 906-0731-04-01 Rev. D www.zoll.com...

  • Page 26: Chapter 3: Maintenance Schedule & Procedures

    Chapter 3: Maintenance Schedule & Procedures 731 Series Ventilator Maintenance Schedule The table below outlines the scheduled interval for routine parts replacement, calibration and testing. Ventilators used in extreme environments may warrant earlier or more frequent mainte- nance scheduling. The ventilator has a built-in feature which generates an alarm to remind the user of the PM/Cali- bration Due date (#3120).

  • Page 27: Annual & 4 Year Service Kits

    Annual & 4 Year Service Kits Annual & 4 Year Service Kits The following tables provide part numbers for PM kits across the line of 731 Series ventilators. See Service Kits chapter for information on additional kit options. Z Vent, EMV+, Eagle II, and AEV...

  • Page 28: Rcs Procedures (Remote Calibration System)

    ZOLL's ventilator service tool, the Remote Calibration System, is needed to complete the PM pro- cess and reset the PM/Calibration Due alarm (#3120). The RCS can be purchased from ZOLL Med- ical. However, its sale is restricted to only authorized customers and service partners. The RCS is intended for use by biomedical professionals who have been trained on its use by ZOLL Medical.

  • Page 29: Process Overview

    3. Power on the device, continue to occlude until the device displays a high priority alarm (SC 1001 or 1030). 4. Power off the device, install the Calibration Resistor to the Fresh Gas Intake Port of the device. 5. Occlude the Resistor and power on the device. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...

  • Page 30: Step 2: Physical Inspection

    2. Connect the TSI High Flow Module to PC. 3. Launch RCS Software. 4. Select Get TSI. 5. Once TSI check is complete, select 731 Series Ventilator and Proceed. 6. Select the Service Sequence, then Proceed. Step 4: Read Vent 1.
  • Page 31 Step 9: RCS 9.1(System Tests) 1. From the Service Actions list, select and run “System Tests”. Do NOT retry more than 3 times. Call ZOLL Technical Service for support. System Test sequence must be completed within 5 days from successful completion of the Cali- brations sequence.

  • Page 32: Stockpile Warm-Up Procedure

    Mode: AC(V) I:E = 1:20.0 High Breath Rate alarm: 90 60 BPM Vt 50 ml PEEP 25 High Pressure alarm: 50 FiO2 at 100% for 15 minutes, followed by FiO2 at 60% for an additional 15 minutes. www.zoll.com 906-0731-04-01 Rev. D...

  • Page 33: Discrete Tests Overview

    SPM through the CPU board (SPM Rx, Tx, bootselect, and reset). Compressor Bypass Pro- The RCS verifies that the compressor bypass protection mecha- tection nism is functional by imposing the fault condition and then verify- ing recovery from the fault condition. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...
  • Page 34 Manifold Leak Check The RCS verifies that the manifold (everything pneumatically con- nected to the gas output port) has an acceptable leak rate when tested at 5 cmH2O and 25 cmH2O. 3-10 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 35 Pulse Ox Sp02 & Heart Masimo Tester Model # 1593 (or equivalent simulator) is used to Rate test the Pulse Oximeter SpO2 and Heart Rate on the 731 series ventilator. SPM Blink Operator confirmation that Alarm #1173, Red LEDs and buzzer are activated within 15 seconds.

  • Page 36: Test Sequences, Rcs 9.1

    Calibration Check Baro- • metric Pressure Compressor Calibration • Calibration Check Com- • pressor System Airway Pressure Calibra- • tion Incoming Calibration Check Airway Pressure Calibration Check Air- • way Pressure O2 Kickstart Calibration • 3-12 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 37 Date and Time Set • Date and Time Check • Download Calibration • Tables Verify UUT and Refer- • • ence Device Conditional PM Due • Reset Erase Forensic Memory • Final Configuration • 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 3-13...

  • Page 38: Troubleshooting

    Exhalation Backup and • Autocal Valve Calibration Check Baro- • • metric Pressure Compressor Calibration • Calibration Check Com- • • pressor System Airway Pressure Cali- • bration Calibration Check Air- • • way Pressure 3-14 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 39 O2 Leak Filter and Pres- • sure Cal. Check Manifold Leak Check • Compressor Bypass • Protection Breath Performance • Check Download Calibration • Tables Verify UUT and Refer- • ence Device 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 3-15...

  • Page 40: Hardware Maintenance Routines

    The following pages cover the required annual hardware replacement procedures. Service kits for annual and 4-year cycles can be purchased from ZOLL. See “Annual & 4 Year Service Kits” on page 3-3 for additional information, or contact ZOLL Technical Support.

  • Page 41: Oxygen Filter Replacement

    3. Using a torque driver set to 19 in-lbs (2.14 newton meters), fasten the three 8-32 flathead screws which secure the Oxygen Inlet fitting to the ventilator’s top connector panel. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 3-17...

  • Page 42: Disk Filter Replacement

    The O-ring and gasket should be checked and replaced if damaged. 3. Using a torque driver set to 14 in-lbs (1.58 newton meters), replace the four 8-32 flathead screws. 4. Ensure there is no foam filter in the Fresh Gas pathway. 3-18 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 43: Main Battery Replacement

    Main Battery Replacement Main Battery Replacement ZOLL 731 Series Ventilators are internally powered by a 6.6 Ah, 14.8 V, Lithium-Ion Battery. Only trained technicians should replace the main battery within the unit. New batteries are shipped at 30% state of charge in compliance with IATA/DOT UN 38.3 man- dates.

  • Page 44: Rtc Battery Replacement

    Chapter 3: Maintenance Schedule & Procedures RTC Battery Replacement The Real-time Clock (RTC) battery within ZOLL 731 Series Ventilators should be replaced every 4 years, or when prompted by the device. Service Code #3110 “RTC Battery Low” will display on device at start up if the RTC battery is less than or equal to 2.5 VDC.

  • Page 45: Rcs Setups

    • Setup A • Setup A2 • Setup B • Setup C • Setup D • Setup E • Setup F • Setup G • Setup I • Setup K • Setup L 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 3-21...
  • Page 46 Chapter 3: Maintenance Schedule & Procedures Setup A 3-22 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 47 RCS Setups Setup A2 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 3-23...
  • Page 48 Chapter 3: Maintenance Schedule & Procedures Setup B 3-24 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 49 RCS Setups Setup C 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 3-25...
  • Page 50 Chapter 3: Maintenance Schedule & Procedures Setup D 3-26 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 51 RCS Setups Setup E 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 3-27...
  • Page 52 Chapter 3: Maintenance Schedule & Procedures Setup F 3-28 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 53 RCS Setups Setup G 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 3-29...
  • Page 54 Chapter 3: Maintenance Schedule & Procedures Setup I 3-30 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 55 RCS Setups Setup K 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 3-31...
  • Page 56 Chapter 3: Maintenance Schedule & Procedures Setup L 3-32 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 57: Chapter 4: Service Kit Installation Procedures

    Service kits are factory-tested sub-assemblies used to facilitate ventilator servicing and repair. Service kits are available only to trained and certified service personnel. For information on the availability of ZOLL Technical Training programs, please contact techtraining@zoll.com. This chapter provides information on Ventilator Service Kits, including: •...

  • Page 58: Service Kits Requiring Electrical Safety Testing

    Screws are coated with anti-vibration compound. When reusing screws, wipe them clean and then reapply the anti-vibration compound (Part No. 602-0006-00). Some kits require the RTV sil- icone sealant be reapplied (ZOLL PN: 0550-0099). Service Kits Requiring Electrical Safety Testing Per the NFPA 99 standard, any service kit installation procedure which requires opening the device should be followed by electrical safety testing.

  • Page 59: Identifying 3Rd And 4Th Edition Ventilators

    5-3. Identifying 3rd and 4th Edition Ventilators When servicing 731 Series ventilators, it is important to differentiate between 3rd and 4th edi- tion devices. The tables on the following pages identify service kits for each product along with specific columns for 3rd and 4th edition kits. The illustrations below reflect changes to the regu- latory labeling which can be used as a reference.

  • Page 60: Service Kits - Emv+ Non-Mri Version

    712-0731-49-LL Front Panel Kit 712-0731-23 712-0731-23- 712-0731-43-LL 712-1731-13- Gas Output Kit 712-0731-16 712-0731-16 712-0731-16 Oxygen Inlet Fitting Kit 712-0731-34 712-0731-34 712-0731-34 Oxygen Valve Assem- 712-0731-42 712-0731-42 712-0731-42 bly Kit Power Input Kit 712-0731-17 712-0731-17 712-0731-17- 712-1731-07- www.zoll.com 906-0731-04-01 Rev. D...
  • Page 61 Module (SPM)/Vent Assembly Kit SPM Board With Tub- 7772-000038- 7772-000038- 7772-000038- 712-1731-25- UIM Adapter PCB 712-0731-38 712-0731-38 712-0731-38- Assembly Kit USB Connector Kit 712-0731-15 712-0731-15 712-0731-15 USB Connector Plate 712-0731-07 712-0731-07 712-0731-07 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...

  • Page 62: Service Kits - Emv+ Mri Version

    712-0731-49-LL Front Panel Kit 712-0731-23 712-0731-23- 712-0731-43-LL 712-1731-13- Gas Output Kit 712-0731-16 712-0731-16 712-0731-16 Oxygen Inlet Fitting Kit 712-0731-34 712-0731-34 712-0731-34 Oxygen Valve Assem- 712-0731-42 712-0731-42 712-0731-42 bly Kit Power Input Kit 712-0731-17 712-0731-17 712-0731-17- 712-1731-07- www.zoll.com 906-0731-04-01 Rev. D...
  • Page 63 Module (SPM)/Vent Assembly Kit SPM Board With Tub- 7772-000038- 7772-000038- 7772-000038- 712-1731-25- UIM Adapter PCB 712-0731-38 712-0731-38 712-0731-38- Assembly Kit USB Connector Kit 712-0731-15 712-0731-15 712-0731-15 USB Connector Plate 712-0731-07 712-0731-07 712-0731-07 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...

  • Page 64: Service Kits - Aev

    Selector Knob Kit 712-AEV1-27 712-AEV1-27 Smart Pneumatic Module 712-0731-02 712-0731-02-01 (SPM)/Vent Assembly Kit SPM Board With Tubing 7772-000038-01 7772-000038-01 UIM Adapter PCB Assembly 712-0731-38 712-0731-38 USB Connector Kit 712-0731-15 712-0731-15 USB Connector Plate Kit 712-0731-07 712-0731-07 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 65: Service Kits - Eagle Ii - Non-Mri

    712-EGL2-27 Smart Pneumatic Module 712-EGL2-02 712-EGL2-02-01 (SPM)/Vent Assembly Kit SPM Board With Tubing 7772-000038-01 7772-000038-01 UIM Adapter PCB Assembly 712-0731-38 712-0731-38 USB Connector Kit 712-0731-15 712-0731-15 USB Connector Plate Kit 712-EGL2-07 712-EGL2-07 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...

  • Page 66: Service Kits - Eagle Ii - Mri

    Selector Knob Kit 712-EGL2-27 712-EGL2-27 Smart Pneumatic Module 712-EGL2-02 712-EGL2-02-01 (SPM)/Vent Assembly Kit SPM Board With Tubing 7772-000038-01 7772-000038-01 UIM Adapter PCB Assembly 712-0731-38 712-0731-38 USB Connector Kit 712-0731-15 712-0731-15 USB Connector Plate Kit 712-EGL2-07 712-EGL2-07 4-10 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 67: Service Kits - Z Vent - Non-Mri

    Gas Output Kit 712-0731-16 712-0731-16 712-0731-16 Flow Screen Kit 712-0731-41 712-0731-41 712-0731-41 Oxygen Inlet Fitting Kit 712-0731-34 712-0731-34 712-0731-34 Oxygen Valve Assembly 712-0731-42 712-0731-42 712-0731-42 Power Interface Mod- 702-0731-02 702-0731-02 702-0731-02 ule Kit 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-11...
  • Page 68 712-1731-02- ule (SPM)/Vent Assem- bly Kit SPM Board With Tubing 7772-000038- 7772-000038- 7772-000038- 712-1731-25- UIM Adapter PCB 712-0731-38 712-0731-38 712-0731-38- Assembly Kit USB Connector Kit 712-0731-15 712-0731-15 712-0731-15 USB Connector Plate Kit 712-EMBP-07 712-EMBP-07 712-EMBP-07 4-12 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 69: Service Kits - Z Vent - Mri

    Oxygen Inlet Fitting 712-0731-34 712-0731-34 Oxygen Valve 712-0731-42 712-0731-42 Assembly Kit Power Interface 702-0731-02 702-0731-02 Module Kit Power Input Kit 712-0731-17 712-0731-17-04 712-1731-07-00 Power Knob Kit 392-0071-02 392-0071-02 Selector Knob Kit 712-EMBP-27 712-EMBP-27 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-13...
  • Page 70 Non-RoHS RoHS Smart Pneumatic 712-EMBP-02-01 712-EMBP-02-04 712-1731-02-00 Module (SPM)/Vent Assembly Kit SPM Board With 7772-000038-01 7772-000038-01 712-1731-25-01 Tubing UIM Adapter PCB 712-0731-38 712-0731-38-04 Assembly Kit USB Connector Kit 712-0731-15 712-0731-15 USB Connector Plate 712-EMBP-07 712-EMBP-07 4-14 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 71: Bulk Supplies

    Bulk Supplies Bulk Supplies Refer to the table below for a list of supplies to have on hand if regularly servicing 731 series ventilators. Bulk Supplies - Screws & Nuts Location Type 0163-000460 Z-Vent Power Input Plug Hex Socket Shoul-...
  • Page 72 #6 Flat washer 376-0079-00 Flow Manifold to Compressor Output #4 Split ring washer Bulk Supplies - Components Part Number Part Type Location Picture 340-0106-00 O-Ring Compressor Inlet/Outlet 340-0020-00 O-Ring Snap Cover 340-0113-00 O-Ring Mix Manifold 4-16 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 73 Part Number Part Type Location Picture 490-0005-00 Leaf Valve BV Filter Holder Base 340-0118-00 O-Ring BV Filter Holder 340-0107-00 Gasket Intake Adap- 340-0055-00 O-Ring Intake Adap- 340-0023-00 O-Ring Manifold/ Connector Panel 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-17...
  • Page 74 O-Ring Mix Mani- fold, O2 Man- ifold 340-0061-00 O-Ring Mix Manifold 340-0059-00 O-Ring O2 Manifold 450-0008-00 Bumper Foot Back Cover / Battery Cover 602-0006-00 Vibratite sealant All Screws 600-0005-00 Loctite High Pres- sure O2 Hose 4-18 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 75 540-0215-00 High Pressure O2 O2 Manifold/ Tubing O2 Tank XDCR 465-0027-00 FILTER, DISK, Fresh Gas/ FRESH GAS/ Emergency EMERGENCY AIR Air Intake INTAKE,INDIVID- UALLY BAGGED 8731-000001 Red Dust Cap Gas Out 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-19...

  • Page 76: Torque Specification Guide

    4-40 X 1/4" FRONT CASE Front Bezel 4-40 X 1/4" Buzzer 4-40 X 1/4" Masimo Plug (SPO2 M2.5 X 5mm Cable) UIM Stack to Front 6-32 X 5/16" Case UIM Adapter Board 4-40 X 1/4" 4-20 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 77 6-32 X 1/4" Bracket Left and Right sides To dovetail stiff- 4-40 X 1/4" ener bracket PIM board to SPM 4-40 X 1/4" Assy Fresh Gas Air 8-32 X 3" Intake Assembly 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-21...
  • Page 78 4-40 X 1/4" O2 Valve 4-40 X 11/16" Oxygen Inlet Mani- 4-40 X 1.75" fold to Mix Mani- fold Compressor Con- 6-32 X 5/16" nector to Mix Man- ifold Flow Manifold to 4-40 X 5/16" Compressor Out- 4-22 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 79 15mm Compressor 4-40 X 1/2" Input Port to Com- pressor Back Cover to 6-32 X 5/16" Dovetail Bracket Compressor to 6-32 X 1.5" Pump Bracket Pump Bracket to 6-32 X 1/4" Chassis 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-23...

  • Page 80: Smart Pneumatic Module/Vent Assembly Service Kit Installation Instructions

    Remove the battery by removing the (4) 6-32 x 2-1/4 screws and detaching the plug from its locking latch. Save these screws. Remove the (4) 6-32 x 5/16 Phillips screws to remove the battery compart- ment case. Save these screws. 4-24 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 81 (4) 6-32 x 5/16 screws provided. Reassemble the battery by connecting its cable to the connector (pull lightly on cable to ensure it is locked in place), then tighten the (4) 6-32 x 2-1/4 screws. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-25...
  • Page 82 (provided in the kit). Tighten the (4) 8-32 x 3 screws on the exterior of the Fresh Gas Intake. Use the RCS "Write" function to update the new part's serial number. Re-certify the ventilator using the RCS. 4-26 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 83: Battery Replacement Service Kit Installation Instructions

    Connect the new battery by connecting its cable to the connector (pull lightly on cable to ensure it is locked in place), then tighten the (4) 6-32 x 2-1/4 screws. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-27...
  • Page 84 Chapter 4: Service Kit Installation Procedures Step Action Reassemble the battery compartment cover by tightening the (4) 6-32 x 5/16 screws. Re-certify the ventilator using the RCS 4-28 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 85: Annual Maintenance Kit

    PLATED, RoHS O2 INLET FITTING 712-0731-34 FILTER, DISK, FRESH GAS/EMERGENCY AIR 465-0027-00 INTAKE,INDIVIDUALLY BAGGED Instructions Disk Filter Replacement Oxygen Inlet Fitting Replacement Scan or Click for Video Scan or Click for Video 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-29...

  • Page 86: Year Maintenance Kit

    Scan or Click for Video Installation Instructions” on page 4-27. RTC Battery Replacement See instructions that follow, or scan/ Scan or Click for Video click the QR Code to watch a video of this procedure. 4-30 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 87: Rtc Battery Replacement Instructions

    Disconnect the Power Input Cable from the PIM board by pressing on the locking latch and pulling the cable straight up from the connector. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-31...
  • Page 88 Lift the PIM Board out of the ventilator module. Remove the corrugated hose connect- ing the Fresh Gas Intake to the Compres- sor intake port. Remove the (4) 4-40 x 1/4 screws fasten- ing the SPM PCB to the SPM. 4-32 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 89 An RTC battery which is not seated firmly may result in ventilator errors. Reconnect the Compressor cable to the SPM PCB and verify that it is locked in place. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-33...
  • Page 90 Fresh Gas Intake base and the compressor intake port. Reposition the PIM Board. Make sure male header pins are inserted correctly into the mating header on the SPM PCB. 4-34 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 91 Insert and tighten the (4) 6-32 x 2” screws and then the (2) 10-32 Keps nuts (provided in the kit). 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-35...
  • Page 92 RCS. Additional power cycles may be needed to clear a false RTC Battery Low Alarm. A PM Due Alarm (#3120) may occur and will be reset when the device is recali- brated. 4-36 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 93: Battery Compartment Service Kit Installation Instructions

    (4) 6-32 x 5/16 screws. Save these screws. Remove the battery by removing the (4) 6-32 x 2-1/4 screws and detaching the plug from its locking latch. Save these screws. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-37...
  • Page 94 (4) 6-32 x 2-1/4 screws. Reassemble the battery compartment cover by tightening the (4) 6-32 x 5/16 screws. Re-certify the ventilator using the RCS. 4-38 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 95: Usb Connector Plate Service Kit Installation Instructions

    Loosen by 1 full turn and do not remove the (4) 8-32 x 3 screws on the exterior of the Fresh Gas Intake. Additional loosening may cause the filter disk to slip out of place. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-39...
  • Page 96 Exercise caution not to cut either cable. Remove the (2) 4-40 x 3/16 screws fas- tening the Mini USB Cable Assembly to the front case. Remove the (2) M2.5 x 5mm screws hold- ing the SpO2 connector to the front case. 4-40 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 97 UIM header. Ensure the SPO2 ribbon cable is not pulled or tangled. Tighten the (2) 6-32 x 5/16 screws that fasten the CPU/SPO2 Stack to the Front Case. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-41...
  • Page 98 Insert and tighten the (4) 6-32 x 2” screws and then the (2) 10-32 Keps nuts. Tighten the (4) 8-32 x 3 screws on the exterior of the Fresh Gas Intake. 4-42 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 99 (4) 6-32 x 2-1/4 screws. Reassemble the battery compartment cover by tightening the (4) 6-32 x 5/16 screws. Perform PM process testing then re-cer- tify the ventilator using the RCS 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-43...

  • Page 100: Battery Case Bottom Cover Service Kit Installation Instructions

    1/2" Dia. x 1/8", Blk Instructions Step Action Remove the damaged cover by removing the (4) 6-32 x 5/16 screws. Remove backing from the bumper feet, then place one at each corner of the bat- tery case bottom cover. 4-44 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 101 Battery Case Bottom Cover Service Kit Installation Instructions Step Action Rotate cover to align with the battery compartment, then insert and tighten the (4) 6-32 x 5/16 screws. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-45...

  • Page 102: Emv Chassis Service Kit Installation Instructions

    • Nut driver set Kit Contents Quantity Description Depiction EMV Chassis Assembly Screw, Phillips, Pan Head, SS, 6-32 x 5/ Screw, Phillips, Flat Head, 8-32 x 1/4, Undercut, ZP Screw, Phillips, Flat Head, 6-32 x 1/4, Undercut Insulator 4-46 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 103 Back Cover 6-32 x 2 screws. Save these screws and Keps nuts. Remove the back case by lifting from the ventilator. You may need to cut through stickers/ labels that are holding the case halves together. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-47...
  • Page 104 Remove the (2) 8-32 x 1/4 screws hold- ing the chassis to the ventilator module. Insert screwdriver through the holes in the chassis to remove the (2) 6-32 x 5/16 screws holding the chassis to the ventila- tor module. 4-48 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 105 (2) 4- 40 x 1/4 screws to the Dovetail Mount- ing Bracket. Reconnect the ribbon cable unto the PIM board. Make sure the two ejector latches are secured. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-49...
  • Page 106 (4) 6-32 x 2-1/4 screws. Reassemble the battery compartment cover by tightening the (4) 6-32 x 5/16 screws. Re-certify the ventilator using the RCS. 4-50 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 107: Connector Panel Service Kit Installation Instructions

    • Nut driver set • Needle-nosed pliers • 5/16” open-ended wrench Kit Contents Quantity Description Depiction Connector Panel Assembly 8-32 x 1/4 Screw 6-32 Keps Nut O-Ring 1/2” OD x 3/8” ID 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-51...
  • Page 108 Remove the (2) 4-40 x 1/4 screws secur- ing the CPU Stack Frame to the Dovetail Mounting Bracket. Save these screws. Disconnect the ribbon cable on the PIM board by simultaneously applying pres- sure on the two ejector latches. 4-52 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 109 Remove the (2) 4-40 x 1-1/4 screws and nylon spacers supporting the Power Input assembly unto the chassis. Save these screws and spacers. Remove the (2) 6-32 Keps nuts using a 5/ 16 open-end wrench. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-53...
  • Page 110 Remove and discard the 1/2" OD x 3/8" ID O-ring from the Oxygen Inlet manifold. Place the new 1/2" OD x 3/8" ID O-ring in the Oxygen Inlet manifold. Position the replacement Connector Panel over the SPM. 4-54 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 111 Connect the Power Input cable by insert- ing into connector. Ensure that locking latch engages. Secure the connector panel to the venti- lator module using the (3) 8-32 x 1/4 screws (provided in the kit). 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-55...
  • Page 112 (4) 6-32 x 2-1/4 screws. Reassemble the battery compartment cover by tightening the (4) 6-32 x 5/16 screws. Re-certify the ventilator using the RCS. 4-56 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 113: Back Case Service Kit Installation Instructions

    Fresh Gas Intake. Additional loosening may cause the filter disk to slip out of place. Remove the battery compartment cover by removing the (4) 6-32 x 5/16 screws. Save these screws. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-57...
  • Page 114 (pull lightly on cable to ensure it is locked in place) then tightening the (4) 6-32 x 2-1/4 screws. Reassemble the battery compartment cover by tightening the (4) 6-32 x 5/16 screws. 4-58 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 115 Back Case Service Kit Installation Instructions Step Action Re-certify the ventilator using the RCS 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-59...

  • Page 116: Power Interface Module Service Kit Installation Instructions

    Remove the battery compartment cover by removing the (4) 6-32 x 5/16 screws. Save these screws. Remove the battery by removing the (4) 6- 32 x 2-1/4 screws and detaching the plug from its locking latch. Save these screws. 4-60 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 117 Insulator out of the way and insert screwdriver through the holes to aid in removing screws. Do not fold the SpO Insulator. Lift the defective PIM Board out of the ven- tilator module. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-61...
  • Page 118 Insert and tighten the (2) 10-32 Keps nuts (provided in the kit) and the (4) 6-32 x 2” screws. Tighten the (4) 8-32 x 3 screws on the exte- rior of the Fresh Gas Intake. 4-62 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 119 Reassemble the battery compartment cover by tightening the (4) 6-32 x 5/16 screws. Use the RCS "Write" function to update the new part's serial number. Re-certify the ventilator using the RCS. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-63...

  • Page 120: Cpu/Uim And Spo2 Stack Service Kit Installation Instructions

    Loosen by 1 full turn and do not remove the (4) 8-32 x 3 screws on the exterior of the Fresh Gas Intake. Additional loosening may cause the filter disk to slip out of place. 4-64 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 121 Flip the ventilator over and remove the front case assembly by lifting it straight up away from the ventilator module. Using a sharp knife, carefully cut the RTV sealant around the SpO cable. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-65...
  • Page 122 Remove the (2) 6-32 x 5/16 screws that hold the CPU/UIM and SpO2 Stack to the front case. Lift the CPU/UIM and SpO2 Stack up from the front case. Handle the SpO2 cable with extreme care. Do not pull on the cable. 4-66 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 123 SpO2 cable to the front case. Apply RTV sealant around the SpO Flex Cable and allow to dry. Route the USB Connector cable along the case and over the SpO flex cable. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-67...
  • Page 124 (pull lightly on the cable to ensure it is locked in place) then tighten the (4) 6-32 x 2-1/4 screws. Reassemble the battery compartment cover by tightening the (4) 6-32 x 5/16 screws. 4-68 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 125 Use the RCS "Write" function to update all serial numbers on the "Front Case" fields, and the PIM board's serial number on the respective field. Re-certify the ventilator using the RCS. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-69...

  • Page 126: Usb Connector Service Kit Installation Instructions

    Remove the battery compartment cover by removing the (4) 6-32 x 5/16 screws. Save these screws. Remove the battery by removing the (4) 6-32 x 2-1/4 screws and detaching the plug from its locking latch. Save these screws. 4-70 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 127 Using a sharp knife, carefully cut the RTV sealant around the USB Printed Circuit Board. Remove the (2) 4-40 x 3/16 screws hold- ing the Mini USB Cable Assembly to the front case. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-71...
  • Page 128 Place the front case assembly over the ventilator module and tighten the (2) 4- 40 x 1/4 screws to the Dovetail Mounting Bracket. Reconnect the ribbon cable unto the PIM board. Make sure the two ejector latches are secured. 4-72 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 129 (4) 6-32 x 2-1/4 screws. Reassemble the battery compartment cover by tightening the (4) 6-32 x 5/16 screws. Re-certify the ventilator using the RCS. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-73...

  • Page 130: Gas Output Service Kit Installation Instructions

    Fitting, Patient, Outlet, SPM O-Ring, Neoprene, 1/2" ID Instructions Step Action Remove the damaged fitting by removing it with a socket wrench that has a 1-inch deep well socket. Place O-ring unto underside of outlet fit- ting 4-74 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 131 Place fitting and O-ring unto Gas Output and tighten with a socket wrench that has a 1 in. deep well socket. Torque to 75 in-lbs. Do not cross thread. Re-certify the ventilator using the RCS. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-75...

  • Page 132: Power Input Service Kit Installation Instructions

    Instructions Step Action Loosen by 1 full turn and do not remove the (4) 8-32 x 3 screws on the Fresh Gas Intake. Additional loosening may cause the filter disk to slip out of place. 4-76 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 133 Disconnect the Power Input cable from the PIM board by pressing on the locking latch and pulling the cable straight up from the connector. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-77...
  • Page 134 Secure the Power Input assembly to the Connector Panel using the (2) 4-40 x 1/4 screws (provided in the kit). 4-78 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 135 (pull lightly on cable to ensure it s locked in place) then tightening the (4) 6-32 x 2-1/4 screws. Reassemble the battery compartment cover by tightening the (4) 6-32 x 5/16 screws. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-79...
  • Page 136 Chapter 4: Service Kit Installation Procedures Step Action Re-certify the ventilator using the RCS. 4-80 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 137: Oxygen Inlet Fitting Service Kit Installation Instructions

    • Torque driver with #1 and #2 Phillips bits Kit Contents Quantity Description Depiction Oxygen inlet fitting with filter, cap and chain Screw, Phillips, Flat Head, 8-32 x 7/16, O-Ring, Black, Neoprene, 1/2"O.D.x 3/8"I.D. (Nominal) 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-81...
  • Page 138 Install the O-Rings (provided in the kit) into grooves on underside of inlet fitting. Place oxygen inlet fitting over the venti- lators connector panel then insert and tighten the 3 supplied 8-32 x 7/16 screws. Re-certify the ventilator using the RCS. 4-82 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 139: Oxygen Valve Assembly Service Kit Installation Instructions

    Keep all Oxygen Clean parts in their protective packaging prior to installation. Do not keep sources of contaminate on the workbench such as soldering material. If an oxygen clean part becomes contaminated, replace the part. Do not attempt to clean it. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-83...
  • Page 140 Remove the battery compartment cover by removing the (4) 6-32 x 5/16 screws. Save these screws. Remove the battery by removing the (4) 6-32 x 2-1/4 screws and detaching the plug from its locking latch. 4-84 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 141 Save these screws. Flip the ventilator over and remove the front case assembly by lifting it straight up away from the ventilator module. The O2 valve is located on the SPM Assembly. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-85...
  • Page 142 SPM chassis. Using a small point Philips screwdriver, remove the (2) 4-40 x 11/16 screws from the O2 valve. Remove the O2 valve with its two O-rings from the SPM assembly. 4-86 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 143 Make sure the O-rings stay in place. Note orientation of Oxygen valve cable. Connect Oxygen valve cable to J2 of SPM PCB. Ensure that the connector is locked in place by gently pulling up on the connector. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-87...
  • Page 144 (4) 6-32 x 2-1/4 screws. Reassemble the battery compartment cover by tightening the (4) 6-32 x 5/16 screws. Use the RCS "Write" function to update the O2 valve's serial number on the respective field. 4-88 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 145 Oxygen Valve Assembly Service Kit Installation Instructions Step Action Re-certify the ventilator using the RCS. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-89...
  • Page 146 Chapter 4: Service Kit Installation Procedures Flow Screen Service Kit Installation Instructions Manifold Diagram SCAN OR CLICK FOR VIDEO Kit Number (ALL MODELS) 712-0731-41 Compressor Flow Screen O2 Flow Screen Kit Contents Item Part Number Quantity Description 4-90 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 147: Flow Screen Service Kit Installation Instructions

    602-0006-00 As Required Vibratite 6 + 4 360-0632-05 SCREW, CAP, SOCKET, 6-32 x 5/16 602-0006-00 As Required Vibratite 465-0013-00 Diffuser 0.484 Diameter 465-0029-00 Diffuser 0.615 Diameter 804-0006-00 Flow Screen, 400 Mesh 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-91...
  • Page 148 Remove the (2) 4-40 X 1/4 screws securing the CPU Stack Frame to the Dovetail Mount- ing Bracket and disconnect the ribbon cable on the PIM PCB by simultaneously applying pressure on the two ejector latches. 4-92 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 149 Flow Screen Service Kit Installation Instructions Flip the ventilator over and remove the front case assembly by lifting it straight up away from the ventilator module. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-93...
  • Page 150 Remove the (2) 4-40 X 1-¼ screws and nylon spacers supporting the Power Input assembly unto the chassis. Save the screws and spacers. Remove the (2) 6-32 Keps nuts using a 5/16 open-end wrench. 4-94 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 151 Step Action Remove the corrugated hose from the Com- pressor Intake. Cover the Compressor Inlet to avoid any screws/particles from falling in. Remove the corrugated hose from the BV Holder base. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-95...
  • Page 152 Note the orientation of the O2 valve connec- tor. Disconnect the O2 valve cable from J2 of SPM PCB by depressing the locking latch and pulling up on the connector. Disconnect the Hoses (6) from the Flow Manifold Assembly Step Action 4-96 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 153 Disconnect tubing from the O2 Inlet Manifold (-). It is advisable to mark the (-) port on the manifold for easy identification during reassembly. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-97...
  • Page 154 It is advisable to mark the (-) port on the manifold for easy identification during reassembly. Disconnect tubing from the Mix Mani- fold (+). It is advisable to mark the (+) port on the manifold for easy identification during reassembly. 4-98 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 155 Compressor- SPM Connector. Using tweezers, carefully remove the existing Compressor Flow Screen, both O-rings, and diffuser. Set them aside until reassembly is completed and the ventilator is re-certified. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-99...
  • Page 156 Insert the Transducer, Screen, 400 Mesh (P/N 804-0006-00) with its smaller diameter side into the SPM Mix Manifold. Ensure that it sits properly in the counter bore. Exercise caution not to touch or dam- age the screen surface. 4-100 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 157 Connector to the SPM Mix Manifold. Ensure the .615 Diffuser Filter and O- ring do not move or become pinched during this operation. Failure to do so will cause the device to fail. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-101...
  • Page 158 Ensure the thread does not get stripped. On the SPM Oxygen Inlet Manifold, insert the Filter, Diffuser, .484 Dia. (P/N 465-0013-00). Ensure that it sits properly and flat on the shoulder. Do not pinch or fold the diffuser. 4-102 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 159 Mesh with its smaller diameter side into the SPM Oxygen Inlet Manifold. Ensure that it sits properly in the counter bore. Exercise caution not to touch or dam- age the screen surface. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-103...
  • Page 160 SPM Oxygen Inlet Manifold. Ensure that the O-Ring does not move while completing this operation. Failure to do so will cause the device to fail. SPM Mix Manifold must be flush with the SPM Oxygen Inlet Manifold. 4-104 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 161: Servicing Membrane Panels And Button Boards

    RCS. Servicing Membrane Panels and Button Boards There has been a design change in ZOLL Ventilators. The user interface has been changed from a Membrane Panel (MP) to Button Board (BB). The Button Board components (including knobs and bezels) are not interchangeable with the older Membrane Panel components. The new But- ton Board can be easily identified (see below).
  • Page 162 Board with kits: Board with kit: 712-EGL2-18 EMV+: 712-0731-23 and 712-0731-28 AEV: 712-0731-23 and 712- AEV1-06 Front Use the Button Board kits Use Button Board Kit: 712- Case listed below: EGL2-16 Assembly EMV+: 712-0731-29 AEV: 712-AEV1-04 4-106 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 163 Warnings, Cautions, and Notes. To distinguish between a Membrane Panel and Button Board ventilator and to also determine replacement kit number needed refer to, “How to Identify a Button Board for the 731 Series Ventilator” earlier in this appendix.
  • Page 164 This device has been classified "life supporting" and "life sustaining" by the United States Food & Drug Administration. If you have not been trained and certified by ZOLL Medical Corporation in the care and servicing of this product, DO NOT attempt to service this device. Should factory based servicing become necessary, or technical assistance is required, please have the device Model and Serial Number available and contact ZOLL Technical Support.

  • Page 165: Procedure For Front Case Kits

    • Philips Head Screwdriver, small point • 5/16” Nut Driver • 1/16” Ball Hex Driver • pen knife or similar • RTV sealant (ZOLL PN: 0550-0099) Step Action Buzzer - Kit #: 712-0731-37 Remove the (2) 4-40 x 1/4 Phillips pan head screws that fasten the Buzzer to the Front.
  • Page 166 Remove the (2) 4-40 x 1/4 Philips pan head screws securing the UIM PCB to the Front Case. Carefully disconnect the Pulse Oximeter ribbon cable from Pulse Oximeter PCB. Separate the UIM Bracket from the Pulse Oximeter plastic housing. 4-110 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 167 If present, loosen the set screw in the Power Switch knob then remove the knob using the 1/16" Ball Hex Driver. Discard the set screw; it is no longer nec- essary. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-111...
  • Page 168 USB Adapter PCB to the USB Connector Plate Assem- bly and remove the cable. Remove the USB Connector Plate from the Front Case. Reassembly Install buzzer using (2) 4-40 X 1/4 screws. 4-112 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 169 Make sure flex cable is aligned with the right side of J2 on UIM adapter board. Insert flex cable into J2. Paying attention to key orientation, attach ribbon cable to back of mem- brane panel assembly. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-113...
  • Page 170 Ensure proper key orientation and install selector knob to assembly. Eagle II units will have the selector knob installed during front case assembly. Carefully unplug membrane panel/but- ton board ribbon cable from J3 of UIM adapter board. 4-114 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 171 J3 of UIM adapter. Fasten the Front Bezel to the front case using quantity 7 of 4-40 X 1/4 screws in locations indicated. Prepare connector plate assembly for installation. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-115...
  • Page 172 (J4 connector of UIM/CPU board mates with J1 connector of UIM Adapter), and install UIM Stack into Front Case. Fasten UIM Stack to Front Case using (2) 6-32 x 5/16" Philips pan head screws. 4-116 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 173 Perform after successful Pre-Test (#35) Apply a bead of RTV sealant around the perimeter of the Masimo connector board to create a seal between Front Case and board. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 4-117...
  • Page 174 Apply a bead of RTV sealant around the perimeter of the USB connector board to create seal between Front Case and board. Position USB cable as shown. Reassemble ventilator per instructions and test/calibrate using the RCS. 4-118 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 175: Chapter 5: Electrical Safety Testing

    Read the electrical safety testing device user and operator’s manuals to become familiar with the device (safety warnings, cautions, safety markings) and to confirm that the testing area (station) where the electrical safety testing device operates conforms to all guidelines, safety warnings, and cautions. 906-0731-04-01 Rev. D www.zoll.com...

  • Page 176: Warnings

    Perform these tests at the line-power voltage and frequency used in your installation. The 731 Series Ventilator is a Class 1 medical device, certified to IEC 60601-1 with BF applied parts. The ZOLL 731 series ventilators have been certified as Class 1 ME externally powered per IEC/EN 60601-1 Standards.

  • Page 177: Electrical Safety Testing Procedure

    Leakage Testing The chassis of the 731 Series ventilator is electrically isolated from AC power. Enclosure leakage testing of all exposed metal components on the device should be utilized in order to verify the device remains properly insulated. Use the following values for enclosure leakage in accordance with IEC 60601-1.
  • Page 178 The SPO2 sensor is optically isolated from the system with no exposed metal components in con- tact with the patient. It is not a requirement to test the SPO2 sensor as an applied part during this procedure. www.zoll.com 906-0731-04-01 Rev. D...

  • Page 179: Touch Points For Electrical Leakage Testing

    Touch Points for Electrical Leakage Testing Touch Points for Electrical Leakage Testing 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...
  • Page 180 Chapter 5: Electrical Safety Testing www.zoll.com 906-0731-04-01 Rev. D...
  • Page 181 Touch Points for Electrical Leakage Testing 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...
  • Page 182 Chapter 5: Electrical Safety Testing www.zoll.com 906-0731-04-01 Rev. D...

  • Page 183: Chapter 6: Ventilator & Calibration Troubleshooting

    • Observations and resolution for the RCS user. Part III - Service Codes This section provides a numerical list of service codes for both V4 and V5 ventilators. Each code contains relevant mitigation/resolution strategies along with service kit information. 906-0731-04-01 Rev. D www.zoll.com...

  • Page 184: Part I - Troubleshooting Overview

    The calibration tables for the device are tested and performance specifications are confirmed. The number of re-tries is limited to three. If the issue persists, record the fault and contact ZOLL Technical Support. Device Alarms Each alarm is assigned a service code which reflects its priority.
  • Page 185 RCS. The review of this file may indicate hard- ware faults or failures that occurred in recent service operations. Service Kits and Replacement Parts For service kit and replacement part information, refer to “About Service Kits” on page 4-1. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...

  • Page 186: Test Sequences, Rcs 9.1

    • Calibration Check Baro- • metric Pressure Compressor Calibration • Calibration Check Com- • pressor System Airway Pressure Calibra- • tion Incoming Calibration Check Airway Pressure Calibration Check Air- • way Pressure O2 Kickstart Calibration • www.zoll.com 906-0731-04-01 Rev. D...
  • Page 187 Date and Time Set • Date and Time Check • Download Calibration • Tables Verify UUT and Refer- • • ence Device Conditional PM Due • Reset Erase Forensic Memory • Final Configuration • 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...
  • Page 188 • Exhalation Backup and • Autocal Valve Calibration Check Baro- • • metric Pressure Compressor Calibration • Calibration Check Com- • • pressor System Airway Pressure Cali- • bration Calibration Check Air- • • way Pressure www.zoll.com 906-0731-04-01 Rev. D...
  • Page 189 O2 Leak Filter and Pres- • sure Cal. Check Manifold Leak Check • Compressor Bypass • Protection Breath Performance • Check Download Calibration • Tables Verify UUT and Refer- • ence Device 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...

  • Page 190: Part Ii - Ventilator Troubleshooting

    Chapter 6: Ventilator & Calibration Troubleshooting Part II — Ventilator Troubleshooting Part II of this chapter addresses troubleshooting of the various device subsystems and calibration components. Each section contains a list of service relevant alarm codes, troubleshooting actions, and resolutions. www.zoll.com 906-0731-04-01 Rev. D...

  • Page 191: Troubleshooting - Communication & Preventive Maintenance Alarms

    Self- Check: Communication Internal COMM CPU- 1473 The CPU monitors the SPM. Hardware Problem: Deter- mine if the SPM is property connected or if the assem- bly/board may need to be replaced. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual...
  • Page 192 This is typi- serial number expected by cally seen after the SPM has the EMV. been replaced. Correction of the serial number should be performed prior to cali- brating and testing the device. 6-10 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 193 • Check USB-PC setup • Return the device to service to evaluate the FTDI compo- nent. External Power The RCS requires External Power to operate. Connect External Power. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-11...
  • Page 194 PM due alarm condition. Multiple RCS appli- Another RCS application running • Close all applications. cations in the background may already • Restart PC. have an active/open connection to the device. 6-12 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 195 The RCS cannot one station, check USB cable. LOADER.BIN read the device Serial Numbers, • Check for Device Hardware and the test load cannot be COMM installed on the device. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-13...

  • Page 196: Troubleshooting - Front Panel

    • The ribbon cable from the LCD to contrast is able to be adjusted. the button board may not be seated correctly. Try re-seating the cable. • If this test fails, replace the Front Panel Assembly kit. 6-14 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 197 Verifies the functionality of the Replace the Front Panel Assembly kit. rotary encoder in both directions. Buzzer Check Verifies the capability of the device Replace the Front Panel Assembly kit. to sound an audible alarm. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-15...

  • Page 198: Troubleshooting - Pulse Oximeter Subsystem

    Masimo sensor is in use. Observations Observation Resolution SPO2 readings are not displayed or SPO2 sensor • Replace sensor and cable with a LEDs do not illuminate. new and known working cable/sen- sor set. • Replace Masimo board. 6-16 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 199: Troubleshooting - Power And Battery

    • Ensure thermal gap pads are will pulse rapidly, and under PIM. the LED will flash rap- • PIM board may need to be idly. replaced. Self Check: Power System Fault/Failure 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-17...
  • Page 200 • To repair, replace PIM or Connec- tor cable to CPU. EXT BATT Indicates possible • Disconnect external power, and faulty wiring of the verify the icon disappears. external power con- • Try replacing your external power nector. cable. 6-18 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 201: Troubleshooting - Smart Pneumatic Module (Spm) Hardware

    Operator confirmation that Red PIM to CPU cable, PIM to SPM cable. LEDs and buzzer were driven • Change the SPM Assembly. within 15 seconds (Test Passed = Pass), otherwise Test Passed = Fail. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-19...
  • Page 202 • Check if anti-asphyxia valve has phase (no flow) shall be less become hardened or contaminated than 0.5 cmH2O per second at 5 • See the manifold calibration sheet. cmH2O and 25 cmH2O. 6-20 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 203 4. Exhalation valve fall delay < 45 ms 5. Backup valve rise delay < 45 6. Backup valve fall delay < 45 7. Pressure difference between exhalation valve drive port and airway pressure < 2.0 cmH2O. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-21...
  • Page 204 • 2030 alarm: Partial blockage, ensure alarm condition. Additionally, full occlusion verify there are no compressor control faults with the power on self-check. 6-22 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 205 3143 Internal tempera- Change SPM board. ture sensor failure 3130 Ambient pressure Change SPM board / transducer transducer fails replacement. Self Check: Internal COMM – Corrupt file 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-23...
  • Page 206 Do you want to upload a default cal • Select: No file? • Attempt to perform a calibration. Select- ing “Yes” will overwrite the SPM serial numbers and Write will need to be done. 6-24 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 207: Troubleshooting - Airway Pressure Calibration

    Self Check: Internal COMM – Corrupt file Self Check Fail- 1176 Checks for a cor- • Calibration required. rupted calibration • Perform WRITE function to elimi- file. nate error and perform calibration sequence. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-25...

  • Page 208: Troubleshooting - Compressor System Calibration

    (range: 26823 - 35474) • Gain Too Low – clean flow screens tion CF_Gain and re-install. (range: 23322 - 33584) • Gain Too High – check test setup and assembly for leaks, then recali- brate. 6-26 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 209 • Check intake assembly for blockage prevents device • Replace filters from delivering suf- ficient flow. Self Check Fail- 1174 Flow transducers • Change SPM board are not behaving as expected. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-27...
  • Page 210 • The intake pressure calibration can be addressed with maintenance of the disk filter. TSI Measurements (Flow and Low Pressure) • The most common faults are related to equipment/setup mistakes. • Check Set Up • Check TSI Connection 6-28 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 211 User prompt hidden/not appearing • Prompt may be hidden by applica- tion. Minimize window to see User expects to see a prompt pop up but none are prompt. visible. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-29...

  • Page 212: Troubleshooting - Oxygen System Calibrations

    Control fault to indi- • Recalibrate device ure / Self Check 2011 cate insufficient O2 • Check manifold for leaks Fault flow rate. • Replace O2 Valve • Check Flow Screen Assembly, clean and replace. 6-30 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 213 TSI Measurements (Flow and Low Pressure) • The most common faults are related to equipment/setup mistakes. • Check Set-Up • Check TSI Connection 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-31...
  • Page 214 User prompt hidden/not appearing • Prompt may be hidden by applica- tion. Minimize window to see User expects to see a prompt pop up but none are prompt. visible. 6-32 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 215: Troubleshooting - Test Station

    • Follow proper safety precautions as noted in the Service Manual The tool is not compliant to FDA Part 11 • Print hard copy of each record, sign, and maintain in accordance with Quality Sys- tem. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-33...
  • Page 216 • Always open the tank slowly with the reg- ulator in the completely closed position (0 PSI). Turn the regulator handle fully counter clockwise. 6-34 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 217 User prompt hidden/not appearing • Prompt may be hidden by application. Minimize window to see prompt. User expects to see a prompt pop up but none are visible. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-35...

  • Page 218: Troubleshooting - Diagnostics

    Description RCS Application Logs: Contains detailed log of transactions between the application and the device. Record of commands sent and received. Typi- Documents\ZOLL\RCS_Apli- cally used to diagnose issues with PC or drivers. cation_Logs RCS Study: Contains .csv files for each discrete test. Tests typically have 2 files associated with them, a “VV”...
  • Page 219 VCDB123456) as the file name. Contains all of the information Docu- displayed in the application window during testing & calibra- ments\ZOLL\RCS_Logs\Ven- tion. Records Pass/Fail criteria. Typically used to diagnose tilator\ServiceActions issues with process or review specific failure criteria post-test. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-37...

  • Page 220: Part Iii - Service Codes

    Each time the Read Forensic Memory is run, five additional files will be written to the directory location. The file names will include the current date and time to prevent overwriting previously read Forensic Memory files. 6-38 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 221: Service Codes - Version 5

    • Check Flow transducer. If bad flow trans- (Failure/ or Stuck ducer, replace Smart Pneumatic Module Faults) (SPM)/ Vent Assembly Kit. Possible Cause: Tubing kinked or disconnected Faulty compres- sor flow trans- ducer 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-39...
  • Page 222 Possible Cause: Debris on the O2 input filter and manifold O2 valve / debris on the valve seat 6-40 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 223 • Check SPM board. If SPM contamination fails. near O2 flow transducer, replace SPM Module. Possible Cause: • Kinked or dis- connected tube • SPM contami- nation near O2 flow trans- ducer • faulty O2 flow transducer 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-41...
  • Page 224 Rein- 3030 Faults) or blocked fresh stall. gas intake • Check fresh gas intake filters. If dirty or wet, replace filters. Possible Cause: • Fresh gas intake assem- bly error • Dirty/wet fil- ters 6-42 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 225 • Check O2 regulator. If faulty, replace O2 regulator on O2 inlet. Possible Cause: • Replace SPM Module • O2 supply pressure too high • Faulty regula- • Faulty O2 Pressure Transducer 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-43...
  • Page 226 SPM module. Possible Cause: • Check SPM PCB for contamination. If • Calibration contaminated, replace SPM module. drift • Kinked tubing • Bad airway pressure transducer • Contamina- tion on PCB near airway pressure transducer/ 6-44 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 227 If faulty exhalation/backup valve tion drive or (EX_CON_1, EX_CON_2), replace SPM exhaust port Module. • Blocked/ occluded exhalation valve • Pinched patient cir- cuit line • Faulty exhala- tion/backup valve (EX_CON_1, EX_CON_2) 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-45...
  • Page 228 RTC alarm at start drained, replace RTC battery. up, date and time • If poor battery contact due to damaged returned to retention clip, replace SPM Module. default Possible Cause: • RTC battery is drained • 6-46 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 229 SPM Module. Possible Cause: • Vent’s alti- tude sensor reads < 0.1 • Vent’s alti- tude sensor reads > 1.9 • Transducer output stuck • Faulty Baro- metric Pres- sure Sensor 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-47...
  • Page 230 If the alarm condition feet) does not clear, the barometric trans- ducer may be stuck. Replace the SPM Possible Cause: Module. • If this error occurs at alti- tudes that are above -2000 feet: Faulty Barometric Pressure Sen- 6-48 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 231 • If issue persists after replacing PIM to Possible Cause: CPU cable, the CPU Module is faulty. • PIM to CPU Replace Front Panel Assembly. ribbon dam- • CPU Module faulty 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-49...
  • Page 232 If the issue is resolved, the a bad CRC or the cause was the calibration table. If the calibration issue persists, replace the SPM Module. header has a bad Possible Cause: Calibration table corrupted 6-50 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 233 Masimo board is bad, replace CPU/SPO2 identify the con- Stack kit or the Front Panel Assembly. nected sensor or the sensor has failed. Possible Cause: • Masimo Flex Cable fault • Internal Masimo board fault 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-51...
  • Page 234 • If none of the above resolve the issue, • The battery the cause is PIM board failure. Replace pack is the PIM board. unplugged • The battery cable is dam- aged • The battery pack is mal- functioning • PIM board failure 6-52 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 235 • faulty exter- • If the above does not resolve the issue, nal power the cause is a faulty PIM board. Replace supply the PIM board. • faulty PIM board 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-53...
  • Page 236 • Replace Battery Pack charge Fault The battery pack has reported an internal tempera- ture of ≥ 75 °C. Possible Cause: • The internal temperature of the battery pack is too high and external power is plugged in 6-54 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 237 This is logic in the battery pack, not the EMV CPU. Possible Cause: • The internal temperature of the battery pack is too high and external power is plugged in, unable to charge the battery 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-55...
  • Page 238 LTC1760, the cause is a faulty PIM board. Replace LTC4260, or the PIM board. AN1112 (Note: PIM communica- tion failure) Possible Cause: • faulty or loose PIM to CPU cable • faulty PIM board 6-56 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 239 If corrupt firm- • SPM applica- ware, reprogram SPM. tion cor- • If the above does not resolve the issue, rupted the cause is a faulty SPM Module. Replace SPM Module. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-57...
  • Page 240 • Newly com- duct programing, and use RCS to Write bined front "SPM SN" and "SPM Model" in "SN To case and SPM Update" fields. module • Accidentally swapped assemblies • Incomplete upgrade • incorrect pro- gramming 6-58 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 241: Service Codes - Version 4

    Alarm occurs when the signal to the O valve Smart Pneumatic Failure Module/Vent is not delivering the required flow rate and the O2 Valve Assembly Service compressor is not available to provide ventila- Failure tion. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-59...
  • Page 242 A significant blockage of the exhala- tion valve or an occlusion/kink in the exhalation valve tube mat cause this failure. 6-60 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 243 Assembly Service If this failure occurs, the user should manually ventilate the patient, replace the ventilator, and contact the ZOLL Technical Service Department for additional information. 1176 Self Check Alarm triggers when the calibration file fails its...
  • Page 244 Service Kit 1473 Self Check Alarm triggers when no valid data is sent from • Check cable Failure the SPM within 1 second. from PIM board to CPU • Power Inter- face Module Service Kit 6-62 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 245 • Power Inter- and the high priority alarm sounds. The user face Module should manually ventilate the patient, replace Service Kit the ventilator, and contact the ZOLL Technical Service Department for additional informa- tion. 1475 Self Check Alarm triggers when the device has lost com- •...
  • Page 246 O2 supply up or down to increase or decrease Service Kit the amount of O2 delivered to the patient. Mitigation/Info: Pneumatic System: Compres- sor, Operation Switched to O2 Supply, Set FIO2 to 100%, Monitor O2 Supply, **Contact Service Center** 6-64 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 247 If the breathing circuit tubes appear to be intact, you should replace the circuit to eliminate the possibility of a bad exhalation valve. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-65...
  • Page 248 PEEP setting by 2 cm H O during the external tub- ing connec- expiratory phase of the breath. This can be tions caused by a leak in the breathing circuit, exhala- tion valve or patient airway. 6-66 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 249 Mute/Cancel button silences the audi- ble alarm for 30 seconds. 2301 Self Check Fault Alarm triggers when the communication CPU/UIM and between the pulse oximeter module and device SPO Stack Ser- fails. vice Kit 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-67...
  • Page 250 120 beats/minute. The user vice Kit should consult with the attending physician on how best to reduce the heart rate to an accept- able level. Mitigation/Info: Heart Rate Above Limit, Check High Limit Setting, **Consult Physician** 6-68 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 251 4 Year Mainte- communicate with the internal battery. When nance Kit this occurs the device does not know the cur- rent charge of the battery and operation could stop at any time. 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-69...
  • Page 252 Air Inlet is blocked but is still capable of delivering matic Mod- breaths within ± 10% of the current settings. This ule/Vent could be caused by an external blockage or a Assembly Ser- dirty/wet external or internal filter. vice Kit 6-70 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 253 Assembly Ser- vice Kit 3121 Power Cycle This alarm occurs when the device has been run- Smart Pneu- Need ning continuously for 30 days. matic Mod- ule/Vent Assembly Ser- vice Kit 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-71...
  • Page 254 Alarm triggers when there is failure of the inter- Smart Pneu- Fault nal temperature sensors. When this occurs the matic Mod- device is no longer able to detect if it is operating ule/Vent outside of the allowable temperature range. Assembly Ser- vice Kit 6-72 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 255 SPO Stack Service Kit 3313 Pulse Ox Alarm triggers when an outside signal or energy CPU/UIM and Signal Inter- source prevents accurate reading by the device. SPO Stack ference Service Kit 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-73...
  • Page 256 Kit drained to low battery status. The device is warn- ing the user that in the event of an external power failure the device has < 30 minutes of backup. 6-74 www.zoll.com 906-0731-04-01 Rev. D...
  • Page 257 Alarm triggers when the device is no longer able Check cable Fault to communicate with the Power Interface Mod- from PIM ule (PIM). board to CPU Power Inter- face Module Service Kit 906-0731-04-01 Rev. D 731 Series Ventilator Service Manual 6-75...
  • Page 258 Service Kit/ Alarm Description Code Resolution Name 3480 Self Check Alarm triggers when the device software detects Recalibrate Fault that it has not been calibrated with the SPM that using the RCS is inside the device. 6-76 www.zoll.com 906-0731-04-01 Rev. D...

  • Page 259: Writing Serial Numbers To The Ventilator

    Writing Serial Numbers to the Ventilator The Remote Calibration System (RCS) provides the user the ability to write serial numbers to a 731 Series ventilator. This is required in the following instances: • When installing new serialized parts/components inside the ventilator •...

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