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Hawker F20/25H1CT2 User Manual

Hawker F20/25H1CT2
52 pages
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1
AEROSPACE
Nickel – Cadmium
Batteries
Operating and
Maintenance Manual
UK
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Table of Contents

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Hawker F20/25H1CT2 Specifications

General IconGeneral
BrandHawker
ModelF20/25H1CT2
CategoryCamera Accessories
LanguageEnglish

Summary

HAWKER Ni/Cd Airborne Battery Purpose and Use

Application of Ni/Cd Aircraft Batteries

Details applications of Hawker Ni/Cd aircraft batteries for starting engines, ground operations, and emergency backup.

Features and Designation of the Battery

Describes the battery's construction, including case, lid, and electrical connectors.

Basic Electrochemical Reactions in Cells

Explains the fundamental electrochemical processes occurring within Ni/Cd battery cells during charge and discharge.

Specified Definitions

Defines key terms and parameters used in battery operation and maintenance.

Commonly Used Terms

Explains common terminology related to battery charging and testing methods.

Technical Data

Provides operational parameters and detailed technical specifications for various battery models.

Safety Measures and Instructions

Safety Instructions, Warnings, and Notes

Provides guidelines on using CAUTION, ATTENTION, and NOTE for safety.

General Safety Instructions

Outlines essential safety practices for handling and working with batteries.

Commissioning of New Batteries

Log Book Requirements

Emphasizes the importance of recording process steps and data for battery airworthiness.

Goods Inwards Inspection

Details the inspection process for new batteries upon receipt.

Commissioning Task for New Batteries

Step-by-step guide for commissioning new batteries, including electrical and physical checks.

Release to Aircraft

Procedure for releasing a serviced battery for installation onto an aircraft.

Maintenance Intervals

Unscheduled Maintenance Procedures

Steps to follow for investigating batteries removed from aircraft due to unscheduled issues.

Scheduled Maintenance Procedures

Details periodic maintenance schedules including monthly, quarterly, and annual checks.

Maintenance Facility Requirements

Specifies requirements for dedicated battery maintenance shops.

Spare Parts for Repair

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

Equipment, Tools, and Consumables

Lists recommended tools and consumables for battery maintenance and repair.

Storage Tasks for Airworthy Batteries

Short-Term Storage of Charged Batteries

Guidelines for storing charged batteries for up to 3 months under specific environmental conditions.

Long-Term Storage of Discharged Batteries

Procedures for preparing and storing discharged batteries for extended periods of up to 5 years.

Commissioning of Prolonged Stored Batteries

Steps for bringing batteries that have been stored for extended periods back into service.

Transportation of Batteries

Shipment of Batteries

Details the procedures for safely shipping batteries in accordance with regulations.

Maintenance Tasks

Monthly On-Aircraft Check

Outlines the monthly inspection procedures for batteries installed on aircraft.

Quarterly Maintenance of Airborne Batteries

Details the scheduled quarterly maintenance tasks for airborne batteries.

Annual Maintenance of Airborne Batteries

Specifies the procedures for annual maintenance and overhaul of airborne batteries.

Sub-Tasks for Maintenance and Commissioning

Reconditioning of Underperforming Cells

Procedure for reconditioning Ni/Cd cells that do not meet discharge capacity requirements.

Check and Adjust Lower Pole Nut Torque

Instructions for checking and adjusting the torque of lower pole nuts on battery terminals.

Insulation Resistance Measurement

Procedure for measuring the insulation resistance of the battery to ensure safety.

Check of Electrolyte Density

Method for checking the electrolyte density to assess cell condition.

Testing Vents Response Pressure

Procedure for testing the response pressure of battery vents after cleaning.

Battery Cleaning Procedure

Steps for cleaning disassembled battery components using soapy water.

Functional Test on Thermostats and Thermistors

Tests to verify the functionality of thermostats and thermistor assemblies.

Fault Finding for Unscheduled Maintenance

Problem Diagnosis and Corrective Actions

Table diagnosing common battery faults and corresponding troubleshooting steps.

Unscheduled Tasks

Inspection and Diagnostic Procedures

Detailed steps for inspecting and diagnosing battery issues during unscheduled removal.

Replacement of Upper Pole Nuts, Spring Washers, and Links

Procedure for replacing upper pole nuts, spring washers, and intercell links.

Replacement of Lower Pole Nuts, Sealing Caps, and Seals

Guide for replacing lower pole nuts, sealing caps, and seals on battery terminals.

Replacement of Thermostat Switch Assembly

Instructions for replacing the thermostat switch assembly within the battery.

Replacement of Main Battery Connector

Procedure for replacing the main battery connector assembly.

Replacement of Battery Case or Lid

Steps for replacing the battery case or lid, including gasket replacement.

Replacement of Battery Cells

Detailed instructions for replacing individual cells or all cells in a battery.

Replacement of Insulating Material

Procedure for replacing insulating material, liners, and empty containers within the battery.

Commissioning of Repaired Batteries

Steps for commissioning batteries after repair work has been completed.

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