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  1. Steve AFD

    Joined:
    Dec 6, 2017
    Messages:
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    Anyone using a pre-flight check list for the H520? I am putting one together and always looking for ideas.
     
  2. claudius62

    Joined:
    May 19, 2017
    Messages:
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    Location:
    France
    ROUTINE MAINTENANCE
    PREFLIGHT/EACH FLIGHT:

    Aircraft
    Check motors for smooth rotation
    Batteries fully charged
    Battery fully seated/locked to airframe
    Check propellers for lock on motor
    Check propellers for nicks, cuts, or other damage (Replace if necessary)
    Check propellers for symmetry (Replace if necessary)
    Landing gear for matched angle
    Gimbal properly attached to pin rails
    Gimbal vibration dampers properly seated, pinned for safety
    Check camera for full motion
    If aircraft is further than 5 miles from point of last calibration, re-calibrate compass/GPS

    ST16SS
    Fully charged
    A minimum of 7 satellites for flight
    Antenna(s) firmly seated
    Vents not blocked
    Always hover UAS at a height of approximately 10’ (to avoid being at eye level) and perform a
    controllability check with each flight. Check forward/backward/up/down/side/yaw prior to
    undertaking a mission.

    25 FLIGHT MAINTENANCE (approx 15 hours per cycle)
    Aircraft
    Clean gimbal vibration dampers of dust/debris
    Check arm locks for positive operation
    Check the motor wire sleeves leading into the airframe for wear
    Clean motors of debris, dust, using compressed air can. Manually spin to assure no grit is inside, and all
    props spin freely and identically
    Clean leg actuators of debris, dust, check for leg tightness
    Inspect camera rails for wear
    Inspect camera filter threads for thread integrity
    Verify all screws are secure. Hand tighten if necessary
    Listen to cooling fan for consistency/no unusual noise
    Wipe arms/legs of dust
    Clean Sonar Ports , removing dust/debris
    Calibrate the Compass, Accelerometer, and Gimbal
    25 Flight Maintenance (cont’d)

    ST16S Ground Station Control
    Verify all screws are secure. Hand tighten if necessary (picture of screw locations)
    Check vents for debris/dust. Vacuum if necessary. Yuneec does not recommend blowing compressed
    air into these vents.
    Check Switch Retainer Rings for tightness
    Perform inspection flight
    Log inspection/maintenance

    100 FLIGHT MAINTENANCE (approx 45 hours per cycle)
    Aircraft
    Inspect play of motors by lifting each motor and adding some pressure to the side. If any motor is
    showing signs of play, replace
    Inspect motor wire sleeves leading into the airframe for wear
    Check the propellers for any cracking, stress marks, or pitting
    Check cooling fan for smooth spin. Replace if necessary
    Check venting areas for debris/dust
    Check arm locking mechanism and adjust if necessary
    Brush, Blow, or vacuum dirt from actuators, motors, cooling fan
    Replace gimbal vibration dampers
    Replace gimbal vibration damper locks
    Check gimbal rail for any wear or stress marks, replace if necessary
    Check gimbal rail screws for tightness
    Apply a small amount of graphite lubricant to a tissue and brush lengthwise on the gimbal rails
    Check gimbal arms for smooth rotation
    Inspect camera quick contact pins for wear and clean if necessary. Electronic cleaning solution applied
    to a paper towel or cleaning cloth is recommended.
    Inspect camera lens threads for thread integrity
    Check propeller locks for integrity, wear, and operation. If wear is noticed, replace the propeller lock
    and springs
    Clean motors of debris, dust, manually spin to assure no grit, imbalanced grind, all props spin identically
    Remove the landing gear actuators and check for contact wear and clean if necessary. A very small
    amount of graphite lubricant may be necessary
    Remove the antennas from their sleeves and check for any wear, or frayed wires
    Clean leg actuators of debris, dust, check for leg tightness
    Check leg locks for integrity
    Check landing gear feet for wear and replace if necessary
    Check all screws and Hand Tighten if necessary

    ST16S Ground Station Control
    Remove battery and check connections for any grime
    Clean air vents/fans using computer vacuum or hand blower (do not use compressed air)
    Clean Joystick pivot points with small brush
    Check gimbal control for tightness and adjust if necessary
    Check throttle control for tightness and adjust if necessary
    Replace screen protector if necessary
    Check stand/handle screws
    Check switch retainer rings for tightness
    Perform post-inspection flight
    Log inspection/maintenance

    Good Luck . ah-non-58933.gif
     
  3. Steve AFD

    Joined:
    Dec 6, 2017
    Messages:
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    thanks - I used the manual quite a bit and ones for other aircraft, but a couple of good points there I think I will include.
     
  4. claudius62

    Joined:
    May 19, 2017
    Messages:
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    Location:
    France
    Still a little for the road ....................
    ANNUAL FLIGHT MAINTENANCE
    Open shell, generally clean dust, debris
    Perform all actions of 100 Flight maintenance recommendations
    AND
    Check shell for cracks/breaks
    Check motherboard for cracks/breaks
    Inspect all legs and connectors for cracks and tight connection
    Check all connections for integrity
    Clear dust/debris from GPS module
    Check all solder joints for integrity
    Replace battery connection board
    Replace landing pads on legs
    Replace gimbal vibration dampers
    Replace gimbal vibration damper safety pins
    Lubricate gimbal attachment points
    Thread lock any metal to metal screw points
    Replace gimbal rails
    Open camera housing
    Clear lens board of dust/debris
    Clean antennas of grime/dust/debris
    Check antenna connection for integrity
    Check antenna lobes for uniformity
    Check attachment points for integrity
    Replace arm locks and springs
    Clean motors of debris, dust, manually spin to assure no grit, imbalanced grind, all props spin
    identically and inspect bearings for lubrication and wear
    Clean leg actuators of debris, dust, check for leg tightness
    Check all moving parts for strength, integrity of function
    Remove and re-tighten all hex screws
    Remove and re-tighten all other fasteners
    Verify all sensors are optimized and functioning properly
    Update Firmware
    Calibrate Compass, GPS, Accelerometer, Gimbal

    ST16S Ground Station Control
    Update Firmware
    Update all software applications
    Remove battery
    Remove screws on back panel
    Clean air vents/fans using computer vacuum or hand blower (do not use compressed air)
    Lubricate fan bearings using dry graphite
    Clean Joystick connection points with Contact Cleaning spray
    Remove and clean gimbal control potentiometer with Contact Cleaning spray
    Remove and clean throttle control potentiometer with Contact Cleaning spray
    Re-install gimbal and throttle control potentiometers
    Check gimbal control for tightness
    Check throttle control for tightness
    Clear electronic components of dust/debris
    Check stand/handle screws
    Check all connectors for integrity
    Clean battery connector points with Contact Cleaning spray
    Check toggle mount threads for tightness

    And I pass the emptying, the change of the shock absorbers, the cleaning of the air conditioning and the muffler .....................
     
    Steve AFD likes this.
  5. claudius62

    Joined:
    May 19, 2017
    Messages:
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    Location:
    France
    There is also:
    MANUFACTURER RECOMMENDED PART REPLACEMENT
    20 Flights
    Propellers
    100 Flights
    Landing pads/feet
    200 Flights
    Replace batteries every 200-250 cycles. Battery cycles should be logged in aircraft log book. If
    multiple batteries are in use, identify each battery for logging purposes. Dispose of batteries by first
    draining them to empty, then place the battery in a salt water bath for 24 hours. Deliver to a recycling
    center.
    400 Flights
    Replace motors
    Replace landing gear actuators
    Replace motor arm lock/catch
    Replace internal cooling motor
    Replace ST16S Ground Station Control fan
    Replace ST16S Ground Control Station battery
    TBO (Time Between Overhaul)
    500 hours of operation, at Authorized Yuneec repair station
    Users may choose to set a more conservative TBO
    BATTERIES
    Batteries may fail due to overheating, being dropped, or any number of other causes. Any battery that
    is bulged or distorted in the casing should be immediately disposed of to avoid impending failure that
    may lead to mid-air power loss or explosion. Self-contained batteries may not be repaired.
    Dispose of batteries by placing the battery in a salt water bath for 24 hours. Deliver to a recycling
    center or dispose of them safely.

    Interesting part, however, if your device has not undergone the gravitational pull or is not playing with the fish. moqueur dji.gif
     
    Steve AFD likes this.