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PREVENTATIVE MAINTENANCE

ANNUAL INSPECTION (SUGGESTED)

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If the airframe has in excess of 300 hours in a one year period, an annual inspection
must be completed by an approved technician.



An approved technician should disassemble the AV and inspect all components for
wear and replace any components as required.



Test all batteries for capacity.



Upgrade firmware and software to latest revisions

500 HOUR PM (SUGGESTED)



An approved technician should disassemble the AV and inspect all components for
wear and replace any components as required.



Replace all motors.



Test all batteries for capacity.



Upgrade firmware and software to latest revisions.

Содержание S-900/Zenmuse

Страница 2: ...ime 3 Aircraft maintenance and updates 4 Battery usage date put into service voltage mah vs time Print out and make readily available the error message legend of various flashing lights Know what to do without hesitation should you observe warnings Insurance is a must Not only will it be expensive to repair your aircraft in the event of an incident if you injure bystanders or damage other people s...

Страница 3: ...ith Nex 7 and TBM 15000 GH3 GH4 Gimbal 17 68lbs S900 with GH3 GH4 and TBM 21000 16 48lbs S900 with GH3 GH4 and TBM 15000 BMPCC Gimbal 17 3lbs S900 and TBM 21000 16 1lbs S900 and TBM 15000 5D Gimbal 22 5lbs S900 and TBM 21000 OVERWEIGHT 21 3lbs S900 and TBM 15000 OVERWEIGHT Flight Times using 90 of battery 15 000 mah battery with gimbal and camera 15 min 21 000 mah battery with gimbal and camera 20...

Страница 4: ...ng of motors or booms o Booms motors will not twist o Center of gravity is correct o Warning lights set for low battery if used o Batteries charged Replace any battery which cycles below 80 of rated capacity Laptop Battery Flight Battery Handheld Rx Battery RC Tx Battery Video Rx Battery Spare Laptop Battery DJI S 900 INVENTORY CHECKLIST o Load Flight plan o Aircraft o Camera with SD card o Spare ...

Страница 5: ...to Tx Switches On Model Selection 5 4V o Copter On o Calibrate Cycle o Copter Voltage on GCS o GPS Mode Double Purple Single Purple o Course Lock Mode Green o Camera Gimbal tests o Upload mission o Zero altitude TAKEOFF CHECKLIST o Timer o GPS mode Course lock o Motor startup checks o Takeoff o Landing Gear LANDING CHECKLIST o LZ clear o Landing Gear o Land o Flight Time o Copter Camera Power down...

Страница 6: ... Structure flexing from fatigue or cracks Motor mount Main frame Booms Loose Bolts causing flexing or misalignment Props Mounts Props out of balance Props misaligned Excessive wind speeds or gusts Excessive Gains Excessive motor power Max motor power must a little more than typical ascent power o Red Flashes 1 2 or 3 flashes with pauses GPS loss 3 is more serious Land if loss lasts for more than 3...

Страница 7: ...tion 1 General Section 2 Limitations Section 3 Emergency Procedures Section 4 Normal Procedures Section 5 Performance Section 6 Weight and Balance Equipment List Section 7 Air Vehicle and Systems Description Section 8 Handling Service and Maintenance Section 9 Supplements ...

Страница 8: ...pecially the flight batteries They are less volatile than gasoline though they should be treated with the same respect Become very familiar with proper techniques of their use GENERAL CHARACTERISTICS o Primarily for ISR Intelligence Surveillance and Reconnaissance o Economical due to extensive use of COTS products o Low Visual Signature o Low Aural Signature o Quick Launch and Recovery o Short Tra...

Страница 9: ... o 16 48lbs S900 with GH3 GH4 and TBM 15000 o BMPCC Gimbal o 17 3lbs S900 and TBM 21000 o 16 1lbs S900 and TBM 15000 o 5D Gimbal o 22 5lbs S900 and TBM 21000 OVERWEIGHT o 21 3lbs S900 and TBM 15000 OVERWEIGHT MOTORS o Manufacturer DJI Innovations o Number of motors 8 o Motor type 41mm x 14mm o Motor Model Number 4114 11 o Motor KV RPM 400 o Motor max 25 2V 10 000 rpm o Motor Max Power 500 Watts o ...

Страница 10: ... o Distributor DJI Innovations o Frequencies 2 4 Ghz datalink with WiFi 2 4 Ghz Command Control 5 8 Ghz Video o Power Consumption 1 watt o Usable Range 2 km DIGITAL WIRELESS LINKS Lightbridge o Distributor DJI Innovations o Frequencies 2 4 Ghz C2 Video o Power Consumption 1 watt o Usable Range 2 km FLIGHT BATTERY o Manufacturers Various COTS suppliers o Battery chemistry recommended Lithium Polyme...

Страница 11: ...charged state o Store batteries between 20 60 charged state Fully charge just before use o Fully charged batteries which are not to be used within 24 hours should be discharged to 20 50 charged state o Discharging LiPoly batteries in excess of 80 of their rated capacity can cause harm to the batteries o Using more than one battery at a time requires the proper wiring harness so that the voltage is...

Страница 12: ...s of arms Must be checked before every flight to ensure batteries were installed in the proper location Check all 4 pairs of arms before flight MANEUVER LIMITS o This aircraft is intended for non aerobatic operations o G loading maximum 2G TEMPERATURE LIMITS o Operating Temp Range 10 C to 40 C o In cold temperatures Keep IMU at room temperature if possible before the flight Keep Batteries above 5 ...

Страница 13: ...on and downwind at the end to avoid depleting the battery before returning to base Have alternative landing sites available in case of emergency landing o WIRELESS LINK Wireless links will be stable in LOS line of sight in most conditions Wireless links are always susceptible to shorter ranges due to Atmospheric conditions Other transmission devices in the area Jamming Antennas not aligned properl...

Страница 14: ...use temporarily Use of a heat sink or fan may be required especially with high ambient temperatures Higher gain antennas may be used but do so with caution High gain antennas are directional Multiple antennas using diversity can be used Diversity is a device which determines the best signal and uses that 5 8 Ghz even at high wattages theoretically has less range than lower frequencies Changing to ...

Страница 15: ...d happen ASAP using the RC link Most often happens due to a low battery Keep a spare 3 cell LiPoly battery with the appropriate plug to plug into the charge jack for emergency use Most chargers are 19V output which is roughly equivalent to a 4 cell battery 3 cell batteries may work o COMPASS CALIBRATION ERROR If the compass is out of calibration the warning light will flash red This is the same si...

Страница 16: ...ed for typical flying Set the end point adjustments such that full stick deflection offers the maximum speed required in normal flying If conditions require higher flight speeds switch to high rate On low rate it is also helpful to utilize a small amount of exponential to make the stick feel soft around center Adjust to your preference ZENMUSE COMMAND AND CONTROL o We recommend the use of a dual r...

Страница 17: ...rved the alarm sounds so that you have adequate time to return to base Adjust to your preference BATTERIES o Replace the transmitter standard battery with a Lipoly battery to extend use times to 8 hours Supplied batteries often last about 2 hours ...

Страница 18: ...urement Unit is set so that it must face forward o GPS Compass installed limited free play pointing forward This device must be installed with a screw to hold it in place It cannot vibrate easily If it does not point forward the corrections in ATTI and GPS mode will be incorrect and it will crash The FC will provide a warning with constant flashing white lights o Level copter using a bubble level ...

Страница 19: ...rcing 6 quick chirps should be heard confirming 6S LiPoly batteries are recognized by the ESCs Hearing less than 6 chirps indicates fewer cell battery packs are being recognized which is incorrect Check for improper or damaged batteries o Do not move or vibrate the Squadcopter until 30 seconds after full GPS Lock Initial 3 red blinks is normal meaning no GPS lock No red flashes indicates full GPS ...

Страница 20: ...copter pointed in the correct heading for course lock o Engage Camera o HDMI switch On This will stop video from playing on the back of the camera and will send the video signal to the video transmitter via the HDMI connection o Freestyle switch On FPV Off This allows the camera to be operated freely through the transmitter o Verify camera operation Operate the shutter Set the focus to auto or man...

Страница 21: ...ward on stick o Verify copter stability If unstable land and reset gains recalibrate or retest as necessary o Proceed with manual mission or o For autopilot operation Ascend to 10 meters Command AVO to proceed with mission Pilot should say It s yours Response from AVO I have it o Manual pilot observer must monitor the informational LED and be ready to take over in manual mode when necessary White ...

Страница 22: ...late life cycle AIRCRAFT FLIGHT LOG BOOK Can be purchased inexpensively o Keep a log of all flights Date Time of Day Time in Operation in hours Battery serial numbers Mah used in flight Location Pilot Observer Sensor Operator Names Flight Objective Remarks AIRCRAFT MAINTENANCE LOG BOOK Can be purchased inexpensively o Keep a log of significant inspections tests repairs alterations equipment change...

Страница 23: ...y be too low to allow for maneuvering and will result in a crash o High lateral speeds will add lift to slightly improve efficiency The rotors act similar to fixed wings at higher speeds This increase in efficiency may be negated by the increased power consumption of forward flight o High winds or gusts decrease efficiency flight time The motors work harder to hold position o As weight increases f...

Страница 24: ...bottom of the arms Check all 3 pairs of arms The CG should be no more than 2mm off in any on the 3 checks The closer the CG is to the centerlines of the arms the more efficient and the more stable the AV will be WEIGHT o Weight is critical to the operation of any aircraft o Weight is especially critical to a rotor wing aircraft At full throttle the motors have a finite amount of thrust All the wei...

Страница 25: ... Refer to the specific manuals for performance ratings o Never power a video transmitter or receiver without an antenna connected or overload failure will occur o Wireless communications utilized provide acceptable communication for LOS o In general o LOS is required o Lower frequencies penetrate objects such as trees better than higher freqs o Lower freqs have longer range than high freqs o Highe...

Страница 26: ...Charge rates higher than 1C will decrease life cycles Maximum charge rating per the manufacturer will provide 300 cycles Use the lowest charge rate which is practical o Battery Rest Time between discharging and charging 30 minutes minimum 1 hour maximum o Do not charge if the battery is more than 2 C warmer than ambient especially if the temperature is above 20 C The outer surface is cooler than t...

Страница 27: ...ed technician should disassemble the AV and inspect all components for wear and replace any components as required Test all batteries for capacity Upgrade firmware and software to latest revisions o 500 HOUR PM SUGGESTED An approved technician should disassemble the AV and inspect all components for wear and replace any components as required Replace all motors Test all batteries for capacity Upgr...

Страница 28: ...e documentation follow Links to these documents are available on the website Print out the significant documents and keep in a notebook with the copter at all times AIRFRAME AUTOPILOT SYSTEM BATTERIES BATTERY CHARGER CAMERA MANUAL CAMERA GCS DATA WIRELESS LINK GIMBAL CAMERA MOUNT GIMBAL CAMERA MOUNT SERVOS LAPTOP COMPUTER MOTORS ONBOARD REGULATOR PROPELLERS RC MANUAL COMMAND CONTROL SYSTEM SPEED C...

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