4.2 Scheduled maintenance
procedures
4.2.1 MONTHLY CHECKS ON AIRCRAFT.
If a monthly check is specified in the flight manual, then
carry out Monthly on "aircraft" check in accordance with
Task 7.1.
4.2.2 QUARTERLY MAINTENANCE
Quarterly maintenance shall be carried out 3 months after
installing the maintained battery into the aircraft. Tasks to
be undertaken are listed below and shall be carried out in
accordance with
Quarterly maintenance Task 7.2
Release-Inspection check Task 3.3.
17
4.1 Unscheduled maintenance
procedures
Following an unscheduled removal from aircraft the battery
shall be taken to the battery workshop for investigation in
accordance with the following steps.
• Fault Finding: refer to Section 9
• Inspection and Diagnostic: Task 10.1
• Repair: (repair the battery as necessary in accordance
with Tasks below:).
Task 10.2 – replacement of upper pole nuts, spring
washers and intercell links
Task 10.3 – replacement of lower pole nuts, sealing
caps and seals
Task 10.4 – replacement of the thermostat switch
assembly
Task 10.5 – replacement of the main battery
connector
Task 10.6 – replacement of the battery case and or
battery lid
Task 10.7 – replacement of the cell(s)
Task 10.8 – replacement of the insulating materials
Task 10.9 - Commissioning of repaired battery:
4. Maintenance Intervals
4.2.3 ANNUAL MAINTENANCE
Annual maintenance overhaul shall be carried out
every 12 months.
Tasks to be undertaken are listed below and shall be
carried out in the presented sequence.
Annual maintenance Task 7.3
Release-Inspection check Task 3.3.
4.3 Maintenance Facility.
The maintenance on Hawker
®
batteries shall be
carried out in a dedicated battery shop by trained
technicians. Requirements for battery maintenance
shops are defined in specifications.
4.4 Spare parts for repair
Any battery components used for replacing defective
parts at repair shall comply with part number as
identified in the battery-specific IPL. Only Hawker
®
approved spare parts shall be used.
4.5 Equipment, Tools and
Consumables for maintenance
Hawker
®
recommends the use of equipment, tools
(listed in Appendix 5) and consumable (listed in
Appendix 6) for maintenance and repair on Hawker
®
batteries.
The document reference is online, please check the correspondence between the online documentation and the printed version.
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