Maintenance
Manual
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INDEX
INDEX
3
1 AIRCRAFTS
5
1.1 AIRCRAFTS
1.2 OPERATOR
5
5
2 MAINTENANCE TASKS
6
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
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6
6
6
6
6
6
7
7
MAINTENANCE OF THE PROPELLERS
MAINTENANCE OF MOTORS
BALANCING PROPELLERS AND MOTORS
MAINTENANCE OF BATTERIES
WEIGHTING AND TRIMMING THE AIRCRAFT
MAINTENANCE OF AIRFRAME ELEMENTS
MAINTENANCE OF THE AUTOPILOT
MAINTENANCE OF THE RC RADIO
OTHER MAINTENANCE TASKS
3 REGULAR INSPECTIONS
8
3.1 DAILY BEFORE THE FIRST FLIGHT
3.2 SERVICE INSPECTION
3.3 GENERAL INSPECTION
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9
9
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1 AIRCRAFTS
1.1 Aircrafts
Serial number
Aircraft Manufacturer
Hexacopter
Aicraft type
Date of Manufacture
DJI WooKong M
Autopilot model
1.2 Operator
Name
University of
Contact Person
Address
Phone Number
e-mail
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2 MAINTENANCE TASKS
Describe the maintenance operations you normally perform on your aircraft. Some examples
are shown below.
Meter párrafo sobre que se tiene que contolar el numerod e horas y cualquier incidente o
accidente.
2.1 Maintenance of the propellers
Periodic checks of the propellers must be performed. If any impact or damage is detected, the
propeller must be replaced. Before installing the propellers they must be properly balanced
using a magnetic balancer. When installing them, be sure that they are properly tightened.
2.2 Maintenance of motors
2.3 Balancing propellers and motors
2.4 Maintenance of batteries
2.5 Weighting and trimming the aircraft
The entire aircraft load will be preferably located under its center of gravity. In the case of
placing the load in a different place, the resultant center of gravity will have to remain within
the limits set by the flight envelope of the aircraft. To do this point the aircraft will be
suspended and balanced locating additional weights where necessary.
The aircraft must be weighted in order to be sure that it weight is not bigger than the MTOW
specified by the manufacturer.
2.6 Maintenance of airframe elements
Periodic checks of the aircraft airframe must be performed. If any fissure, crack or delimination
is detected on the composite material of the airframe or any damage is detected in the
metallic parts of the aircraft, the part must be replaced.
2.7 Maintenance of the autopilot
If the autopilot has to be changed, previous autopilot configuration should be saved when
possible before replacing it. The new autopilot should be located in the same position and
orientation of the previous autopilot and use the same configuration.
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2.8 Maintenance of the RC radio
If the RC radio has to be changed, previous RC radio configuration should be saved when
possible before replacing it. The new RC radio should use the same configuration as the
previous one. Before flying, lab tests will be performed in order to be sure that settings are
correct.
2.9 Other maintenance tasks
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Dust, grass, sand… that may deteriorate RPAS elements (such as servos, threads…)
must be removed after operation.
Threads and moving parts must be periodically checked to be sure that they can move
as expected.
Lubricant must be periodically applied to threads and combustion motor moving parts.
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3 REGULAR INSPECTIONS
Describe the inspections that you regularly perform on your RPAS system as indicated by the
manufacturer. Some guidelines are provided bellow. Maybe, not all of them apply to your
system.
All checks prescribed are visual inspections for damage, unless otherwise indicated. The work
indicated, should be performed within the specified period. All maintenance work should be
reflected in the maintenance log, leaving a record of the work done on the aircraft, checks,
discrepancies or solutions, being signed by maintenance personnel who performed the task.
In addition to these inspection tasks, preflight checks will have to be performed before each
flight following the instructions described in the operations manual.
3.1 DAILY BEFORE THE FIRST FLIGHT
Before the first flight of the day a complete overhaul of the platform, where a general
operation of the system and structural verification will be performed.
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Check that motors are properly fastened.
Check that bearings are free of abrasive elements and without excessive lubricant.
Check that propellers are properly fastened and balanced.
Look for symptoms of fatigue or cracks in the propellers.
Check that electronic elements (including autopilot) and wirings are properly fastened.
Check that the landing gear is properly fastened.
Check that payload elements are properly fastened.
Check that wiring and connectors are installed correctly and undamaged.
Check the state of the battery.
Functional testing on the ground:
o Switching between flight modes.
o Check that the aircraft communication and navigation systems work properly.
o Check that the aircraft emergency systems work properly.
o Check that telemetry is correctly received.
After each flight, a quick inspection looking for structural damages will be done. In addition the
following tasks will be performed:
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Measuring the temperature of the motors.
Removing waste (grass, sand…).
Check that the screws are tightly screwed.
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3.2 SERVICE INSPECTION
It has to be performed at least every 6 months or 10 hours of flight as recommended by the
manufacturer.
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3.3 GENERAL INSPECTION
It has to be performed at least every 12 months or 25 hours of flight as recommended by the
manufacturer.
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