Jostra HL 20 Heart Lung Machine Service Manual – Maquet HL20 Guide PDF

Description

Jostra HL 20 Heart Lung Machine Service Manual – Maquet HL20 Guide PDF DOWNLOAD

Description

The Jostra HL 20 Heart Lung Machine Service Manual is the complete factory-issued technical manual for the HL20 perfusion system used in extracorporeal circulation. It is intended for trained and authorized service engineers and provides the essential knowledge required to perform installation checks, preventive maintenance, troubleshooting, repairs, adjustments and field tests.

This service manual covers both right and left oriented HL20 consoles, including two-, four- and five-pump configurations. It documents all monitoring modules, the System Control Panel (SCP), System Monitoring Unit (SMU), single and twin pump modules, alarm sequencing, wiring, system interfaces and advanced internal functions.

The manual emphasizes strict safety compliance, ESD precautions, use of genuine spare parts, and correct procedures to prevent equipment damage or clinical risk. It serves as a complete HL20 preventive maintenance guide, Maquet HL20 perfusion troubleshooting reference, and a highly detailed source of HL20 pump console technical data.

🗂️ Table of Contents

1. General

• Purpose and scope of the manual

• Authorized service requirements

• Safety and hazard notices

• Preventive maintenance responsibilities

• Functional checks after service

• Notes, labels, terminology and abbreviations

• Overview of all related manuals

2. Description

• Introduction to the HL20 system

• Functional elements

  • Console layout and power supply

  • Module access bay configurations

  • System Control Panel (SCP) functions

  • System Monitoring Unit (SMU) layout

  • Pump module controls and indicators (RPM/TPM)

• Technical data

  • Standards and classifications

  • Console electrical data, temperature limits and dimensions

  • Single and TwinPump specifications

  • SCP display specifications

  • SMU display and key functions

3. Function

• Principles of operation

• Mains and battery operation

• SCP operation and switch functionality

• SMU operation and display behavior

• Pump operation logic and control

• Console power components

• Description of all modules (pressure, level, bubble, temperature, cardioplegia, etc.)

• System interfaces and communication paths

4. Trouble Shooting

• Alarm response procedures

• Alarm tables for console, pumps, bubble/level modules, pressure modules, temperature modules

• Pump error handling and message interpretation

• Console faults, power issues and operational messages

• Module fault behaviors and corrective actions

5. Maintenance

• Cleaning and disinfection guidelines

• Preventive maintenance intervals

• Console mechanical and electronic maintenance

• Single pump and twin pump maintenance tasks

• Battery backup checks

• Electrical safety testing

• Comprehensive preventive maintenance checklists

6. Service

• General service guidelines

• Opening SCP, SMU, console and module enclosures

• Installation/removal of pump modules

• SCP time/date adjustments

• SMU display adjustments

• Pump adjustments: tube installation, occlusion settings, flow calibration, belt replacement

• Module adjustments and calibrations

• Detailed service check procedures

• Field test procedures:

  • Battery capacity

  • Pressure calibration

  • Stop function tests

  • Control verification

  • Speed accuracy

  • Pump alarms

  • Timer functions

  • Air bubble detector tests

  • Temperature sensor tests

  • Complete technical safety checklist

7. Installation

• Unpacking instructions

• Mechanical inspections

• Console and pump verification procedures

• Electrical checks and safety tests

• Final system verification checklist

• Formal service handover procedure

Appendices

• HL20 self-test description

• Wiring diagram of console

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