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2022 DJI All Rights Reserved.
AGRAS T40/T20 P
Unmanned Aircraft Flight Manual
T40/T20P Drone Recommended Maintenance Cycle
Part for service Module Recommended service time
Recommended replacement
cycle
Propulsion system
- motor
Motor
1. Carry out the rst inspection for a new
drone after 100 ights.
2. Carry out an inspection every 100h after
the rst inspection.
3. If an ESC is stalling, and temperature of
the motor/ESC is abnormal, carry out this
inspection.
4. If the motor is damaged due to external
force, carry out this inspection.
Replacement after 1,000h of
usage is recommended.
Propulsion system
- motor internal
resistance
Motor
1. Carry out the rst inspection for a new
drone after 100 ights.
2. Carry out an inspection every 100h or 1
month after the rst inspection.
3. If an ESC is stalling, and temperature of
the motor/ESC is abnormal, carry out this
inspection.
Replacement after 1,000h of
usage is recommended.
Propulsion system
- ESC
ESC Every 6 months
Replacement after 36
months of usage is
recommended.
Propulsion system
- motor base
Motor Base
1. Carry out the rst inspection for a new
drone after 100 ights.
2. Carry out an inspection every 100h or 1
month after the rst inspection.
3. If the motor base is damaged due to
external force, carry out this inspection.
Replacement after 500 hours
of usage is recommended.
Propulsion system
- propellers
Propellers
1. Carry out the rst inspection for a new
drone after 100 ights.
2. Carry out an inspection every 100h or 1
month after the rst inspection.
3. If an ESC is stalling, and temperature of
the motor/ESC is abnormal, carry out this
inspection.
Replacement after 700 hours
of usage is recommended.
Propulsion system
- propeller adapter
Propeller
Adapter
Before daily operation preparation
Replacement after 1,000h of
usage is recommended.
Propulsion system
- screw bolts of
frame arm
Screw Bolts of
Frame Arm
Every 1 month
Replacement after 1,000h of
usage is recommended.
Aircraft
components
- frame arm
connector
Frame Arm
Connector
Every 1 month
Replacement after 1,000h of
usage is recommended.
Aircraft
components -
screws
Securing
screws of frame
arm buckle
Every 1 month
Replacement after 1,000h of
usage is recommended.
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