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Hawker F20/27H1C User Manual

Hawker F20/27H1C
52 pages
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1
AEROSPACE
Nickel – Cadmium
Batteries
Operating and
Maintenance Manual
UK
The document reference is online, please check the correspondence between the online documentation and the printed version.

Table of Contents

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Hawker F20/27H1C Specifications

General IconGeneral
BrandHawker
ModelF20/27H1C
CategoryCamera Accessories
LanguageEnglish

Summary

Abbreviations

Units

1. Purpose and Use of Ni/Cd Airborne Batteries

1.1 Applications of Ni/Cd Aircraft Batteries

Overview of where Hawker airborne batteries are utilized in aircraft.

1.2 Features and Designation of the Battery

Details on the physical characteristics and naming conventions for Hawker batteries.

1.3 Basic Electrochemical Reactions

Explanation of the fundamental chemical processes within Ni/Cd battery cells.

1.4 Specified Definitions

Glossary of technical terms and parameters used in the manual.

1.5 Commonly Used Terms

Definitions of key charging and testing terminology for batteries.

1.6 Technical Data

Specifications, operational parameters, and cell/battery data tables.

2. Safety Measures and Instructions

2.1 Safety Instructions, Warnings and Notes

Guidelines for interpreting caution, attention, and note indicators in the manual.

2.2 General Safety Instructions

Essential safety practices for handling and working with aircraft batteries.

3. Commissioning of New Batteries

3.1 Log Book

Procedures for recording battery data to ensure airworthiness and warranty compliance.

3.2 Goods Inwards Inspection

Steps for inspecting new batteries upon receipt for damage or defects.

3.3 Commissioning Task for New Batteries

Detailed step-by-step guide for preparing and charging new batteries for service.

3.4 Release to Aircraft

Procedures for authorizing the installation of serviced batteries onto aircraft.

4. Maintenance Intervals

4.1 Unscheduled Maintenance Procedures

Steps to follow after a battery is removed from service unexpectedly.

4.2 Scheduled Maintenance Procedures

Outlines monthly, quarterly, and annual checks for battery upkeep.

4.3 Maintenance Facility

Requirements for dedicated shops and trained personnel for battery maintenance.

4.4 Spare Parts for Repair

Guidelines for selecting and using approved replacement parts for battery repairs.

4.5 Equipment, Tools and Consumables

Lists recommended tools and materials for performing battery maintenance and repair.

5. Storage Tasks for Airworthy Batteries

5.1 Short-term Storage of Charged Batteries

Procedures for storing charged batteries for up to 3 months.

5.2 Long-term Storage of Discharged Batteries

Guidelines for preparing and storing discharged batteries for extended periods.

6. Transportation of Batteries

Task 6.1 Shipment of Batteries

Instructions for safely packaging and shipping batteries according to regulations.

7. Maintenance Tasks

Task 7.1 Monthly on Aircraft Check

Routine visual inspection of batteries while installed on aircraft.

Task 7.2 Quarterly Maintenance

Detailed inspection and checks for batteries every three months.

Task 7.3 Annual Maintenance

Comprehensive annual inspection and maintenance procedures for airborne batteries.

8. Sub-Tasks of Maintenance and Commissioning Procedures

Task 8.1 Reconditioning of Cells

Procedure to recover performance in cells that do not meet capacity requirements.

Task 8.2 Check and Adjust Torque of Lower Pole Nuts

Steps for verifying and setting the correct torque on lower pole nuts.

Task 8.3 Insulation Resistance Measurement

Method for testing the electrical insulation integrity of the battery.

Task 8.4 Check of Electrolyte Density

Procedure to measure the density of the electrolyte in battery cells.

Task 8.5 Testing Vent Response Pressure

Verifying the correct operation pressure of battery vents after cleaning.

Task 8.6 Battery Cleaning Procedure

Steps for cleaning disassembled battery components.

Task 8.7 Functional Test on Thermostats and Temperature Switches

Procedures for testing the functionality of temperature sensing components.

9. Fault Finding for Unscheduled Maintenance

Problem Identification and Corrective Actions

A table correlating battery problems with their possible causes and corrective tasks.

10. Unscheduled Tasks

Task 10.1 Inspection and Diagnostic

Detailed inspection and diagnostic steps for batteries removed from service.

Task 10.2 Replacement of Upper Pole Nuts, Spring Washers, and Links

Procedure for replacing specific battery connection components.

Task 10.3 Replacement of Lower Pole Nuts, Sealing Caps, and Seals

Steps for replacing lower pole nuts and associated sealing components.

Task 10.4 Replacement of Thermostat Switch Assembly

Procedure for replacing the battery's thermostat switch assembly.

Task 10.5 Replacement of the Main Battery Connector

Steps for replacing the main electrical connector of the battery.

Task 10.6 Replacement of Battery Case or Lid

Instructions for replacing the battery's outer case or lid.

Task 10.7 Replacement of Cells

Procedure for replacing individual battery cells or the entire set.

Task 10.8 Replacement of Insulating Material

Steps for replacing internal insulating liners or empty containers.

Task 10.9 Commissioning of Repaired Batteries

Procedure for commissioning batteries that have undergone repair.

Appendix 1: IUI-Charge

Appendix 2: Constant Current Charge

Appendix 3: II-Charge

Appendix 4: Temperature Harnesses

Appendix 5: Recommended Tools and Consumables

Appendix 6: Consumables for Maintenance

Appendix 7: Disposal

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