ZOLL Propaq MD

Preventive Maintenance Procedure

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Asset Type

Defibrillator

Manufacturer

ZOLL

Model

Propaq MD

Manual Reference

ZOLL Propaq MD Operator's Guide, document 9650-1806-12 Rev. B, Chapter 25; and ZOLL Propaq MD Service Manual, document 9650-0801-01 Rev. A, Chapter 1. The publicly available service manual is an older revision. Before performing PM, obtain or confirm the latest ZOLL service information for the unit's serial number, software, military or civilian configuration, installed options, and region.

Manufacturer Recommendation / AEM Status

Manufacturer-listed schedule

AEM note

This workflow follows the manufacturer's daily/shift and maximum one-year performance/calibration schedule. A facility interval that changes that schedule, or omission of an applicable test, must be supported by the facility's approved AEM program, risk assessment, service history, regulatory requirements, and current ZOLL instructions. Safety-critical defibrillation, synchronized cardioversion, pacing, alarm, monitoring, and leakage-current tests must not be skipped merely because a function is rarely used.

What This PM Procedure Covers

This procedure covers identity and service history, ruggedized enclosure and accessories, batteries and external power, readiness and operational checks, treatment records, ECG, defibrillation, synchronized cardioversion, pacing, NIBP, EtCO2, installed monitoring options, communications, advanced feedback options, leakage current, final readiness, and CMMS documentation. Perform tests applicable to the installed configuration and document every omission as not equipped or not applicable.

Required Tools and Equipment

Step-by-Step PM Procedure

1. Remove the Unit From Clinical Use

Action: Confirm the Propaq MD is not connected to a patient, provide a replacement transport monitor/defibrillator, disconnect disposable patient accessories, and follow facility cleaning and infection-control requirements.

Expected outcome: The unit is safely controlled for service and an immediately available replacement covers clinical operations.

2. Verify Identity, Configuration, and History

Action: Record asset tag, serial number, software version, civilian or military configuration, installed monitoring and therapy options, location, battery identity, and manual revisions. Review readiness logs, self-test results, event logs, prior repairs, calibrations, open corrective work, recalls, and current ZOLL service communications.

Expected outcome: The exact configuration is identified and all applicable tests, certifications, updates, and follow-up actions are known.

3. Inspect the Ruggedized System

Action: Inspect the enclosure, bumpers, handle, display, selector and keys, indicators, speaker openings, printer, labels, seals, vents, battery bay and contacts, external-power connector and supply, USB/communication ports, patient connectors, cables, strain reliefs, therapy cable, pads connector, paddles, sensors, cuffs, hoses, mounting/transport hardware, bags, and protective accessories. Clean only by the current operator instructions.

Expected outcome: The system is clean, complete, securely assembled, correctly labeled, and free of cracks, deformation, contamination, corrosion, fluid entry, loose parts, obstructed vents, bent pins, exposed conductors, and damaged transport accessories.

4. Check Batteries, Charger, and External Power

Action: Inspect the SurePower II battery and charger status, verify correct seating and recognition, operate from battery and the approved external source, confirm charging indications, and check source transfer without an unintended shutdown. Review battery age, service history, capacity information, and storage condition; rotate and recharge packs using current ZOLL guidance.

Expected outcome: The Propaq MD powers reliably from each intended source, recognizes and charges the battery, transfers power normally, and displays no unresolved battery, charger, or external-power fault.

5. Verify Readiness and Built-In Operation

Action: Check the readiness indicator and automatic self-test history. Perform the current daily/shift checkout and all operational tests required for the annual service, including keys/controls, display, LEDs, audible indicators, printer, battery, fan, and USB functions as applicable.

Expected outcome: Readiness shows the ready condition, startup completes without an unresolved fault, and every applicable operational test passes.

6. Verify Treatment Reports and Data

Action: Create representative test events, verify the treatment summary/report, code markers, date/time, printer, record storage, USB transfer, and required network transmission using only facility-approved test destinations.

Expected outcome: Events are correctly recorded and time-stamped, printed output is legible, and required records can be retrieved, exported, or transmitted.

7. Test ECG, Heart Rate, and Alarms

Action: Connect a calibrated ECG simulator and exercise all supplied 3-, 5-, and 12-lead cables, lead selections, and installed ECG functions. Verify waveform quality, lead-off response, displayed heart rate, configured alarm limits, visual/audible alarms, and 12-lead acquisition.

Expected outcome: ECG channels and cables display the simulated signal within the current service limits, lead faults are detected, and heart-rate alarms activate and clear correctly.

8. Test Defibrillation and Safe Disarm

Action: Connect the therapy cable or paddles to a calibrated analyzer with approved adapters. Perform the service-manual shock test at every specified energy point and verify charge time, selected/delivered energy, shock controls and indicators, event recording, and the charged timeout/internal-disarm sequence. Never discharge into an open circuit or unauthorized load.

Expected outcome: The unit charges, announces readiness, delivers energy within the current ZOLL tolerance, records the event, and disarms safely when commanded or timed out.

9. Test Synchronized Cardioversion

Action: Apply the service-manual ECG signal, enable Sync, verify R-wave markers, charge, and measure R-wave-to-shock delay with the analyzer.

Expected outcome: Sync mode and markers operate correctly and shock timing meets the current service-manual limit.

10. Test External Pacing, If Equipped

Action: Use the analyzer and approved therapy connection to test the specified low- and high-rate/output points, current amplitude, pulse width, demand behavior, controls, indicators, and pacing alarms. Do not interpret simulator results as clinical capture.

Expected outcome: Pacer rate, current, pulse width, demand response, controls, indicators, and alarms meet the current ZOLL limits at every required point.

11. Perform Annual NIBP Calibration and Pneumatic Tests, If Equipped

Action: Inspect cuff, hose, connector, and pneumatic path. Complete the current annual calibration check plus leak, inflation, deflation, overpressure/safety, and functional measurement tests. Use every required pressure point and record both primary and safety-transducer readings.

Expected outcome: Both transducers meet current calibration tolerance, the pneumatic system passes leak and timing requirements, safety behavior is correct, and simulated measurements meet the current service limits.

12. Perform Annual EtCO2 Calibration and Tests, If Equipped

Action: Confirm date/time, inspect the sampling connection and accessories, and complete the annual EtCO2 calibration/check and functional test with approved 5% CO2 gas and sampling hardware. Follow the current instructions for calibration status and due-date handling.

Expected outcome: Calibration and verification complete successfully, the measured gas result meets the current manual range, and the capnogram/numeric response is normal without a sampling fault.

13. Test Other Monitoring Options

Action: As equipped, complete current ZOLL tests for SpO2, SpCO, SpMet, SpHb and related Masimo parameters, IBP, temperature, and respiration using compatible calibrated simulators, cables, and sensors. Exercise every installed channel and relevant alarm.

Expected outcome: Each installed parameter and channel displays the applied value within current tolerance and produces the expected alarm and disconnect response.

14. Test Communications and Feedback Options

Action: As configured, test Wi-Fi, cellular, Ethernet, Bluetooth, report/log transmission, audio recording, CPR feedback, Real BVM Help, USB, and paddles using the current procedure and facility-approved destinations.

Expected outcome: Each installed communication, recording, ventilation-feedback, CPR-feedback, transfer, and paddle function completes its prescribed test without unresolved faults.

15. Perform Leakage-Current Testing

Action: Test the complete configured unit and the required ECG, multifunction cable, external/internal paddles, and anterior/posterior therapy accessories at the installation line voltage and frequency. Use the latest ZOLL method and limits rather than copying values from an obsolete manual. Record every condition and accessory tested.

Expected outcome: All patient, applied-part, chassis/earth, normal-condition, and single-fault measurements required by the current procedure remain within documented limits.

16. Restore and Return to Service

Action: Remove test equipment, reinstall approved accessories and a charged battery, restore facility settings and communications, confirm date/time, clear only authorized test records, repeat final startup/readiness and configured-system checks, and document readings, parts, corrective work, and disposition.

Expected outcome: The Propaq MD is complete, clean, charged, configured, transport-ready, and either returned to service with traceable results or clearly removed from service.

Electrical Safety Testing

Use the latest configuration-specific ZOLL procedure, analyzer instructions, installation line voltage/frequency, and facility electrical-safety policy. The publicly accessible Rev. A service manual is not sufficient reason to reuse an older numeric limit without confirming it remains current.

Electrical-safety analyzer / serial / calibration due:
Result =

Protective-earth or ground resistance, if required:
Current service-manual or facility limit =
Result in ohms =
Pass / Fail =

ECG patient leakage:
Normal-condition limit / result =
Single-fault limit / result =
Mains-on-applied-part limit / result =
Pass / Fail =

Therapy accessory leakage:
Accessory tested =
Normal-condition limit / result =
Single-fault limit / result =
Mains-on-applied-part limit / result =
Pass / Fail =

Earth or chassis leakage, when required:
Limit / result =
Pass / Fail =

Pass / Fail Criteria

Pass

Remove From Service

Copy/Paste CMMS Work Order Procedure

This is transport emergency-therapy equipment. Never test it while connected to a patient, discharge it into an unauthorized load, or return it to service with an incomplete or failed safety-critical test.

Sources

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