Spreading Wings 5900 

User Manual v12 

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4::· .• : • .. ....... 

c/JI 
Disclaimer 

Thank you for purchasing the S900 Please visit the Spreading Wings S900 page on v ... ww.dji.corn regularly 

to keep up to date with product information, technical updates and manual corrections. Information in this 

manual is subject to change without notice. 

In using this product. you hereby agree to lhis disdoimer and signify that you have understood all points 

completely When assembling this product, follow all instructions carefully. The manufacturer and seller 

assume no liability for any damage or injury arising from the use of this product. 

This is a class A product of the FCC certification. In a domestic environment this product may cause radio 

interference, in which case the user may be required to take adequate measures. 

DJI is a re11istered tmdemmk of DJI. Names of produci. brand, etc .. appearing in this manual are trademarks 

or registered trademarks of their respective owner companies. Thrs product and manual are copyrighted hy 

OJI with all rights reserved. No part of this product or manual shall be reproduced in any form without the prior 

written consent or authorization of DJI. 

About 

The S900 is designed for protessional aerial photography and cinematography. It is user friendly, safe. 

st.:lbilized and easy to fly while its integrated design makes assembly and configuration simple and fust. 

Hetractable landing gem. vibration dampers, slightly angled arms and a rninirnalized gimbal mount allow for 

a clear ~~flO degree view from the camera. A patented power distribution bomd. built-in high speed ESCs 

and motors with high efficiency propellers ensure dynnmic stability and maximized power etfrcrency. Used 

with a professiono.i DJI multi-rotor nutopilot system, the S900 can hover and fly reliably making it ide1jl frn 

photography ond cinernntography. 

·""· ... ·-..... 
Contents 

Disclaimer 

About 

Contents 

Cautions 

Legend 

In The Box 

Mounting the Landing Gear 

Mounting Frame Arms 

Mounting Electronics and Wiring 

Connecting XT60 Ports on the Center Frame 

Installing Battery 

Setting Up the Landing Gear 

Mounting the Gimbal 

Appendix 

ESC Sound 

ESC LED 

Specifications 

Gain Value Settings 

FAQ 

Soldering the ESC 

Remounting the Propellers 

Propeller Precautions 

Using tho Propeller Holder 

Assembling Motor Vibration Absorbers 

Remounting the Landing Gear Servo 

Recalibrating Servo Travel 

Part List 

FCC Statements 

2 

2 

3 

4 

'1 

5 

6 

7 

11 

16 

16 

18 

20 

22 

22 

22 

22 

23 

24 

24 

24 

24 

25 

25 

26 

26 

27 

31 
0 

Ill 

s. 

i5 

::::i 

{/) 

Cautions 

When flying, the rotating propellers may cause seriou8 damage and injury Please fly safe at all times. 

Assembly Cautions 

1 

2. 

3. 

4. 

Use a bracket to mount the GPS module on the center frame to avoid interference with the power board. 

Ensure the IMU is mounted witf-\ the arrow pointing toward the nose of the aircraft 

If using a receiver. attach it under the bottom board of the center frame with the end of the antfmna 

facing downwards and away from obstructions to avoid signal loss 

Ensure frarne :-:mns are mounted correclly. 

a) Motor mounts with CCW marks should be mounted to the center frame positions with the followin9 

marks: M1 . M3 and M5. 

b) Motor mounts with CW marks should be mounted to the center frame positions with the followinn 

marks: M2. M4, and M6. 

5. Do not remove any glued-in screws. 

6. Screws that already have blue g lue can be used once without thread locker. On other occasions. apply 

appropriate thread locker first. 

7. The S900 should be lifted off the ground when testing landing gear or recalibrating servo travel. 

Flight Cautions 

1. ESCs a1e not vvater-proof, please do not fly in rain or snow. 

2. Ensure all soft dampers and vibration absorbers are in good condition before every flight. If not, replace 

immediately. Otherwise, the flight per1ormance of your aircraft will be adversely affected. 

3. Ensure all parts arc in good condition before eoch flight. Do not fly with worn or broken parts. 

4. Ensure propellers and motors are installed correctly and propellers are unfolded before flying. 

5. Ensure ESC signal connectors and power cable connectors are tight before every flight. 

6. When flying, maintain a safe distance away from people, buildings, high-voltage lines, tall trees. water 

and other hazards. 

7. Use only 6.S LiPo batteries for the power supply. 

8. E:nsure all output signals from M1 to M6 are in proper working order when using the f),JI A2 flight control 

system to avoid damage or 1n1ury. 

9. Do nol overload the system. 

10. Do not get close to or touch motors or propellers when they are spinning as this cnn cause serious injury. 

11. f')isconnect the battery and remove the camera during transportation to avoid dumage or injury. 

12. We strongly recommend using as many OJI manufoctured parts ns possible. 

Others 

If you have nny problems you cannot resolve, contact your dealer or OJI customer service. 

Legend 

& Important :\): Hints and Tips 
In The Box 

Center Frame x1 

Landing Skid Tubes x2 

(with Silicone Rubber Dampers) 

IJ[]t--.... .... - .. .. - --E---__,rnJJ 

GPS Collapsible Mount x1 

Connection Cable 

Connector Set x 1 

~"'''μ ·;;;;, ~ ::,_~ ~ 

or 

3-PIN Connection Cables x8 

3-PIN Servo Cable x1 

Frame Arms x6 

Landing Gear Legs x2 

Springs x2 

Accessories Package x1 

CW propellers x2 

CCW propellers x2 

Magic tapes x4 

The red knobs x6 

Landing gear leg rings x4 

Soft dampers x50 

Screw Package x1 

For frame am1S mount M4x35 

For landing gear mount: M3x8. 

M2.5x8 (socket cap). M3x22 (socket cap) 

Tools Required 

Tools ·---------------·---·-·--··············· .. ···············-·· 

2.0mrn Hex Wrench. 2.5mm Hex Wrench 

I hread Looker 

Nylon Cable fie. Scissors. Cutting Pliers/Dykes 

Foam Double Sided Adhesive Tope 

Usage 

Mounting screws. 

Fastening screws. 

Binding devices and wires. 

Mounting receiver. controller ond other modules. 

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CD 

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Mounting the Landing Gear 

Instructions 

1. Put one landing gear leg ring onto each landing gear leg. 

2. Insert one landing gear leg into each landing skid tube and secure it in place by tightening the M?.5x8 

(socket cap) screw Fn:wre silicone rubber dampers are attached to each end. 

3. Insert the landing gem leg into connection point on the center frame. Affix in place with M3x8 sc1ews. 

4. Connect both springs on Ille legs to the center frame 

·(')· 

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\ \ \ \ \ \ \ \ 0, 

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, ' .... -·')v n, -·-·-· -- . > ,-1 ____ ... -

-- 0--,::::: ::~ .. __ .. 

I 

· Note the spnngs a1e 58.5mm before connecllng to the center frame. and are stretched to 70mm 

when mounting 1s completed. 

• It is recommended that the landing gear leg ring be placed about 30mm above the landing skid tube. 

\ 

\ \ \ \ 

..- '?"'\ ~:;tm ~ \.- --- \

" -\ <$<..-------- ----:_i.:---- --- --.. -:--- Q ---
Mounting Frame Arms 

Instructions 

Prepare the arms. 

( 1) Check all propellers for crocks. then install und screw each propeller cover on tightly. 

(?) Fnsure all motors are mounted firmly and rotate freely 

(3) Mount all arms with red propeller covers to M 1 and M2 to indicate the nose of the S900. 

(4) Identify the CW and CCW marks on the urrns. Mount the arms with the CCW mark to t11e M1. M3 arid 

MS positions of the center frame. The arrr1s with the CW mark should be mounted to the M2. M4 urHJ 

M6 positions of the center frame. 

Cover Propeller ~ • 

~ Screw MoJnt Power Coble 

~/ ESC Signal Cable 

"'- CW or CCW Mark 

LED· 

2. Insert ear.h fmrne arm vertically into the mounting 

area ori Ille center frame. 

3. Line up the screw holes of the frame arm and 

center frame. 

4. Insert the M4x35 screw from the right of the 

frame arrn (the thread 1s located on the left of the 

screw mount) Tighten each screw correctly. Over 

tightening may lead to connector abrasion. 

"LED is on after motor started. 

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Spreading Wings S900 Uo.e! Mai u!'I 

9 . Connect the povver cables to the center frame. Fac:h cabie must be screwed into c:i positive(+) or ney<ilive (-) 

gold brc:icket l::.o.ch bracket will have two cables of the same color screwed into it. Red cables are positive 

and black co.bles are ncgc:itive. 

10. Io ensure a reliable connection. rotate the screw unttl 1t is both tight and parallel to the connecliny 

bracket. 

11. Lnsure all ESC cables. <lnd power cables are COlrectly installed onlo lhe center frame 

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Spreading Wlngs S900 u~.::r Manua! 

12 Replace the round cover of the center plate, and re-tighten the 4 screws (M3x8 self-tapping). Then 

replace the upper plote of the center frame, and re-tighten the 6 screws (M2.5x8 cheese). 

<. , .. ~~ .......... 

•,, ....... 

13 Double check <lll frame <lrmS. Arms M1 and M2 ore the foiward facing (nose), arms M4 and M5 are the 

tail Seen from the top, motors on arms M1 , M3 and M5 rotate counter clockwise while those on arms M? 

M4 and M6 rotate clockwise. 

10 ... ·.- '-. •,J_ ....... - -

('. 

\' '\ \ •. \ '. 

~M2 

: , .._, 

\\ 

\,~~· 

M6 

-.~--~~~ --~ 
Mounting Electronics and Wiring 

Eight positions are reserved for mounting a flight control system, wireless video transrnission morJuie. 

receiver. and other accessories. The OJI A2 flight control system has been used here as an example If using 

an A2, follow mounting and wiring instructions found in the A2 flight control system user manual. II using 

the OJI WK-M flight control system, please refer to tl1e WK-M user manual for connections Also be sure the 

firmware on your OJI flight controller has bc"'en updated to the latest version. 

Instructions 

1. Attach IMU module to the !MU area of the center Imme. Ensure !hat it points toward the nose. 

2. Attach the PMU module to the center frame. 

6 Only mount the IMU in the IMU position of the center frame. 

3. Mount the flight controller in the reserved position near the PMU module. 

\\ \ ... 
Spreading Wings S900 User ·11anua1 

4. Attacl~ the GPS collapsible mount to the center frame using M?.5x8 screws. 

5. Mount u CPS module to the GPS mount with o brncket. Ensure the arrow points toward the nose and ovoid 

catching your fingers in the brncket when folding for transportation 

M1. - . .. ·, 

M2· -

6. TI1e other reserved positions are indicated in lhH diagmm below and can be used tor mounting a receiver, 

LED flight indicator. iOSD module and wireless video transmission module 

12 

1//11 

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Spreading Wings S900 Us0~ 1·}~1v: 

7. Check that ev!'lry anti-drop screw has been firmly installed in the reserved positions. 1 hread loc ker is 

recommer1dH<i 

(1) Remove the anti drop screws to apply appropriale thread locker. 

(2) Replace ond tighten. 

8 Note that the dampers are 30" silicon rubber. II you use other dampers or vibration absorbing balls. the 

qualrty of your aerial photography may be affecled . 

Lt, · Mount the GPS wrth a bracket to avoid interference from the center frame power board. 

• Use y lue to install the GrS bracket. Ensure 1t 1s firm and stable before every flight. 

• Alwt.iys 1~81 rnolors usrng the Assistant Software after installation. Refer to your flight control system 

user manual for detuils. 

0 - •':.-- 13 
Spreading Wings S900 Ust: Mai ua 

Connecting the flight controller to the center frame 

1. Connect the flight control systHrn according to your flight control system user manual. 

2. Connect the flight controller to the center frame with the connection cables. 

14 

There ore two kinds of connection cEblP.s Choose the corresponding connection mode according to U1e 

connection coble in the box 

Using the connector set: $. . } 

1-'lug in the connector set to the ESC signal outlet on the center fr:;ime. Then plug 1n the connector set to 

fhght controller as shown below. 

(1) Yellow4 pin coblcs are for M1- M4 connections. The yellow cable should be connected to ML 

(2) Brown 4 pin cables ore for M5- M6 connections. Tile brown cable should be connected to M5. 

(3) Black 4-pin cables are for four continuous ground pins connections M 1-M4 are connected as the 

following diogmm shows. 

A2 

........... -

... 

::~ ~ M3 ~0 · 

::w~~ ; M6 r 0 0 0 

0 0 0 

0 0 0 

Ml 

M2 

M3 

M4 

MS 

M6 

·L o o or 

: : : ~ 0 08 0 

0 0 0 s 

0 0 0 ~ 

o u o [, 

Using the 3-pin connection cable: ;-~};~·1.if:ti~:ti~.l':"'~:Y-./:f..?.F.l:'i*~ :i: ; 

M1 throuyll MB correspond to each motor number. 

0 0 0 \' Ml l 1-M1 

0 0 0 ~ M2 >-M2 ~ 

0 0 0 r: M3 -Ml 

~() 0 0 0 [, M4 - 7 - M4 I ......... ...................... ' of'. ~ -Ms1 \ 0 0 MS I 

r1 M~ 0 0 0 _L, M6 iJ * 

0 0 0 t' ~ \J ( 0 0 0 ""\ 

... 

.. ~ . . .. 

,- . ' .· ... 

0 

LINK 

A2 

0 

LED 

FUGHT CONTROllCA 

U"fi'lt!t±1Q ,HO 

.,,, 

:ti ~. - Fl -

Fi -t 

Fi -

X3 -t 

X>-

Xt ...... 

z~ < Si 
Spreading Wings S900 vSt:' N:a· 

Lt If using <:i OJI WK-M flight controller. you must use the wires that came with the WK-M. M1 through 

MO correspond to each motor number 

Connecting the flight controller and landing gear 

Ml 

M2 

M3 

M4 

1: 

l o 

J o 

0 

0 

0 

0 

MS ! o o 

M6 0 0 

0 0 

I o 0 

0 I 

~ 

0 '-.., 

0 ~ '-

0 ~ ·- 0 " --------.. 

0 r 

-. 

0 ~ ...., 

c \ 

... ' 

1. Connect the left servo (between M3 and M4) cable to the "L'' port of lhe landing gear control board. 

2. Connect the right seNo (between MS and M6) cable to the "R" port of the landing gear conlrol board. 

;1 ror the A2. flight control system, connect the F1 port of the flight conlroller to the "IN" port of the landing 

gear control board. Other flight control systems connect a 2-posilion channel receiver to lhe "IN" port 

I 

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l:: 

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& • If nght and left seNo cables are reversed, the landing gear will not function properly 

• C'..onnect all wires carefully and neatly to rivrnd cable damage criused by frame E'!ci~s 

15 
Connecting XT60 Ports on the Center Frame 

The bottom board is a power distribution board with three XT60 connectors for battery power. 

Instructions 

1. Connect the PMU power cable to the XT60 connector on top of the bottom board. 

2. Connect the landing gear control board cable lo the XT60 connector on the bottom of the bottom board. 

3. Other connectors can supply power for other OJI devices, as required. 

/ · .... / 

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Installing Battery 

Soldering battery connectors 

·········~········ 

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AS150 sμark-proof connectors are used. They must be soldered to your battery power cables. 

1. Remove the original battery connectors. Avoid cutting the power and ground cables at the same time, as 

this can cm1se a short circuit. We recommend wrapping unsoldered cables with insulating tape to prevent 

accidental corn1ections. 

2. Pass the black ground wire through the black housing. After passing the wire through, solder the female 

bullet connector to the ground wire. Wait for the soldered connection to cool, then pull the housing back 

over the bullet connector. 

3. Screw and pass the red power wire through the red housing. After passing the wire through, solder the 

male bullet connector to the power wire. Wait for the soldered connection to cool. and then screw and pull 

the housing back over the bullet connector. 

___ ___,_,+-lfl J . J 

16 (.;> 
Spreading Wings S900 1 !<=,qr :, 'a 

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--- IJP~'f~ ...;=-;. I 

_u:.: -::=::-:-:::~::::::::~ l,,__ _ _______ __;:::-===---- __;.' 

Installing and connecting battery 

1. Attach battery to battery tray. Do not use an oversized battery. Maximum installation dimension is 80rrnn X 

120mm X 200mm. 

?. ConnP.r,t the black connector and then the red connector to power on. Disconnect the red connector tii~ 1 

black connector to power off. 

., 

. .-... ...... . .....,,_., .. 17 
Setting Up the Landing Gear 

Using a 2-position RC transmitter switch. landing gear retraction cun be carried out remotely 

Setting up the transmitter 

Select a 2-position switch (default setting is OK) as the control input for the landing gear. Fnsure the 

corresponding rflceiver port is connected to the "IN" port on control board. For I.he A2 flitJhl conlrol 

system, connect the flight controller's F1 port to "IN" port on control board. 

Upper: Toggle the switch to this position lo raise the landing gear. 

Lower: loggle the switch to this position to lovver the funding gear. 

L'.t. • If the lmnsmi!ter switch hns a FailSafe function , set the FailSafe value to the [Lower] position I his 

ensures that the landing gear will lower automatically when the receiver enters FailSafe mode. 

• To avoid accidental switch triggering. slide levers or other controls can be used for landing gem 

con I ml 

Usage procedures 

1. Ensure transmitter and receiver batteries are fully charged. 

2. Toggle the switch to the [Lower) position, and then turn on the transmitter. 

3. Ensure the "R". T' and "IN" connections are correct. 

4. Ensure the landing gear 1s 1n the [Lower] position. then power on the system. If a solid green LED on the 

landing gear contml board lights up, everything is no1rnal. If it flashes green slowly. re-calibrate the system 

according to instructions in "Recalibrating Servo Travel". 

5. Toggle the switch to the [Upper] position ONLY AFTER tukcoff. 

6. Toggle the switch to the [Lower) position for landing. 
Spreading Wings S900 U;:;e• Manu...i 

·h ·v· • SHrvo power will shut off 3 seconds after the lunding gear has reached its target position. 

• When powering on the system if the trunsrniller switch 1s in the [Upper) position. the LED will flush 

red quickly .'.ls a warning. Toggle the swild1 lo the {Lower] position to continue. 

• It there is ;:m abnormal signnl or no signal input into the "IN'' port, the LED will slowly flnsh rP.d 

Check receiver and corn1ections for problems. 

• If se1vo power consumption is too high. the LLLJ will light up red. If this lasts more thnn 4 second::>, 

the londing gear will lowP.r and the LED will fl.'.lsh green slowly. Re-calibration is needed before 

flying. 

• /\2 flight control system users can use the A2 Assistant to set intelligent gear on the ··Advanced" 

page. Refer to the "A2 user ma'lual' for dHtails 

LED Control Board Indicator 

System normal 

Calibration required 

Recalibration required 

Culibmlion fci1IH<1 

Enter cahbrat1on mode 

System calibrating 

Motor stalled 

Unsafe startup Blert 

Input signal abnormal 

Landing Gear Specifications 

Parameter Range 

Working Voltage 3S-·6S (LiPo) 

Working Current Max 1A@6S 

Working Temperature 20--?0c C 

T otol Weight 875g 

G - Solid green. 

G ..... · Blinks rapid green. 

G · · · · · · Olinks slov..i green. 

Y Solid yellow. 

Y ...... Blinks rapid yellow. 

Y .... .. Blinks slow yellow. 

R.. -Solid red. 

R ...... Blinks rapid red. 

A ...... Blinks slow green. 

Parameter Range 

Input Signal PWM (High-Pulse Width 800us-2200us) 

Output Signal PWM (Mid Position i:> 1520us) in 90Hz 

Output Voltage 6V 

Servo Travel 150c (Minimum 120c ) 

19 
Mounting the Gimbal 

Before nssembling the gimbol. inGtoll lhe GCU t:.1s shown below 1:3e sure to install on the side os shown below. 

A nJJ Z15-GH4 (~ IU) gimbol hos been used as an exurnple. in the following diagrams. 

The. connectors on gimbal should be removed for better performance, lhen the gimbAI can be mounted to 

the lower connection points. Users of OJI Z1 5 5N I 7N gimbal, refer to the DJl~15-5N / 7N Gtmb;:il Mounting 

~oles (PHge 21) for details. 

20 

\ 

\ 

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Spreading Wings 5900 Use' ~/.ai :.: , 

Check that the system's center of gravity is on the line as shown 1n tl-ie diagram below. 

OJI Z15-5N I 7N Gimbal Mounting Notes 

~ • Due to the size restriction of the Z15-5N I 7N gimbal, users should purchase extended landing gear 

legs (used with Zlb-oN / 7N gimbal) to avoid damage and/or failure during the self-test. Refer to the 

Part l isl Pac:kage No 3'1 (Page 31) for details. 

• Follow tt1e Mounting the Landing Gear (Page 6) instructions to mount extended landing gear legs. 

Then the girnl.ml am he mounted as shown below 

:\): Package No.34 is for users whose landing gear legs are 300mm. Users whose landing gear legs are 

350mrn have no need to purchase this part. 

21 
Appendix 

ESC Sound 

ESC State 

Ready 

Throttle stick is not at bottom 

Input signal abno11nal 

Input voltage abnormal 

ESC LED 

ESC State 

Standby 

Motor rotating 

Sound 

!1234567--B--B 

BBBARA 

B ······· B- ···· ···B ... 

00. BB-··BB···BB ... 

································-------···---·--··············-····-·-········· 

LED 

Off 

Motor rotatiny ul lull throttle position 

Solid Red or Green On 

Solid Yellow On 

Lt, OJI ESCs ore specifically designed for multi-rotors. When used witt1 OJI autopilot systems 

;r. parameters ond trovel ranges do not have to be calibrated. 

0 

"8 

.::> 

Q 

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Specifications 

Frame 

Diagonal Wheelbase 900mm 

Frame Arm Length 358mm 

Frame Arm Weight 316g 

(with Motor, ESC, Propeller) 

Center Frame Diameter 272mm 

Center Frame Weight (with Landing Gear 1185g 

Mounting Base. Servos) 

Landing Gear Size 

Motor 

Stator Size 

KV 

Max Power 

22 ~~ ~·.- ;~: 

460mrn(Length)x450mrn(Width)x360rnrn(Height) 

41 x14mm 

400rpmN 

soow 
Weight (with Cooling Fan) 

ESC 

Working Current 

Working Vollage 

Signal Frequency 

Drive PWM Frequency 

Weight (with Radiators) 

Foldable Propeller (1552/1552R) 

Material 

Weight 

Flight Parameters 

I akeotf Weight 

Total Weight 

Power Battery 

Max Power Consumption 

Hovering Power Consumption 

Hovering I ime 

Working FnvironmAnf Temperature 

Spreading Wings 5900 U::.er M;m p' 

158g 

40A 

6S LiPo 

301 lz ~ 450Hz 

BKHz 

35g 

High strength performance engineered plastics 

15x5.2 inch 

13g 

7K~ - 8.2Kg 

3.3Kg 

I iPo (6S 10000mAh-15000mAh. 15C(Mrn)) 

30CYJW 

1 OCXJW (@6 8Kg Takeoff Weight) 

18min (@12000mAh & 6.8Kg Takeoff Weight) 

-1<J'C-40"C ______ ,,,,,,,,,,,,,_,, ___ ,,,,, ........................................... ,, __ , __ ...... ,, ____________ _ 

Gain Value Settings 

Basic Attitude 

Flight Control 

Pitch Roll Yaw Pitch Roll Vertical 

A2. 110% 110% 120% 220% 220% 1?0% 

WooKong-M 160% 160% 160% 190% 190% 100% 
FAQ 

Soldering the ESC 

Ue sure to solder the thick wires and fine wires correctly when soldering an ESC to the frarne Firm 

Clockwise (CW) and counter clockwise (CCW) motors have a different arrangement of the uoloreci wires. 

Red 

Black 

8kJe Thic:kww-e __ 

Fnewire --

Fnewire --

Thick wire ·-

Remounting the Propellers 

Instructions 

1. Use two M3x 12.3 screws nnd four washers to remount propellers. 

2. Apply thrcDd locker to the H ireud of the propellers mount tirst. 

3. /\ff ix screws with 4Kg · cm (OAN · m) torque. 

' ' .. , 

:\): Refer to originDI screw tensions if you are unfamiliar with torque measurements. Applying thread 

locker to the propeller mount first avoids yelling ll11e.ad locker into the holes ot the plastic propeller. 

& Loose screws cannot be securely locked with thread locker. 

Propeller Precautions 

Torque markers on the screws and propeller covers will give you a visual cue to check whether lhe propellers 

are loose. Check the torque markers before every fligt1t. 

24 '.'. ·'.'.' ~ '" 
Using the Pro~~ler Holder 

Instructions 

1. Insert !he propeller blades into the propeller holder. 

Assembling Motor Vibration Absorbers< 

2. Attach the propeller holder to the frame arm. 

A soft dnmpcr is part of the vibration ab8orber. Assemble soft dampers as shown below. Assembly is the 

same for CCW and CW propellers 

# .......... -

_,,. -- ~ 

Lt, · Ensure all 8oft dampers and vibration absorbers are in good condition before every flight If not. 

replace immediately. Olherwi8e, lhe flight pedorrrnmce or your aircraft will be adversely affer.ted 

• Before installing the soft dampers, put the copper gaskets onto the four mounting holes on ti1e 

carbon plate Then put the soft dampers into the mounting holes. 

• After tightening the screws, the vibration absorbers may be twisted. If this is the case, hold the 

motor with your thumbs under the base plate and fingers on the top carbon plate. and squeeze the 

plates together to make the vibration absorbers flat and parallel with the plates. 
Spreading Wings S900 Uset Manual 

Remounting the Lanoi ear-Se~o · 

Remounting servos is not recommended as they are pre-insl<:1lled. 

Instructions 

1. Connect the left seNo cable to !he "I " port of the landing gear control bo.3rd. 

2. Connect the right servo cable to the ·'R'' port of the landing gear control board. 

3. Press ond hold lhe SET button using a pin then power on. You will see a yellow LED beside the SET button 

flashing quickly. Wait as servos complete position initialization. 

4. Make sure the arm connecting to the servo is parallel to the link as shown in the following diogrum. 

5. Assemble the left and right servos to the lett (between M3. M4) and the right (between M5. M6) ports of the 

landing gear. Power off 

~~·-··-::-··~····-~~ '!•;n '$ .e to 

L :c -_::~~,........~~":.or ' ··-:-·' 'J.h::.<:;;,,.'• ... :, {--:~·,~~· : . . \.) Ll . 1,-,..: ~.w ... ~ . \..._ ! R L IN C ,. ··> ./! ,,.. .,,. ~-~- _; .. l. _J_1· __,,.,,. ! 

T 0 <:o:ih; !l@l"VO ~ 1 ~ 

f 0 ~ft Uf\' O l f 

I,,,' ttc1.1•ivet channel ! . ( lv H JJ<.11\ ifv;,v 42) ! 

' St:l SoHvt'! 

L~O 

RecaJibrating Servo Travel 

Instructions 

1. Keep your h<:tnds away from all moving ports. 

2. Ensure the "R''. ' L" and 'IN'' connections <:1re correct. 

3. Keep the whole aircraft off of the ground during calibration, as landing gear will move. 

I 

I 

I 

After Installation 

4. Press and hold the SCT button using a pin while powering on, then release. An Ll:.LJ will flash yellow 

quickly. Press the Sl I button again. Auto calibration will begin and the LED will trash yellow slowly. DO 

NOT obstruct any moving parts during auto calibration. 

5. During calibration. the left landing genr will raise and lower, followed by thfl right lancling gear. 

6 After cahbr::ition. both the left ::ind right l;:mcling ge.ars will be lowered and the LED will display a solid green 

lighl. This indicales that lhe landing gear is working properly. 

& · If the LED is solid yellow after calibration. a problem has occurred. Carry out the instructions in 

·'Remounting the Landing Gear Servo' then try again. 

• Avoid obstructions during calibration. If the landing gear was obstructed, recalibration will be 

required. per the above steps. 

• If the "R" and ''L" servo cables are reversed. travel will not be measured correctly Fix the 

connections and recalibrate the landing gear using the above steps 

• Landing gear travel has been pre-calibrated. Mechanical adjustment of the gear travel is not 

recommended 
Part List 

If you require a replacement part, locate the part that you wish to replace in the followi11y lubles. Then order 

lhe package that comes with the specified pmt The numbering of the part is defined as follow 

~O2 OT1 Q):_ c_c_w_ CW as clockwise; ccw as COIJl,ter d<Xk 

5900-----< I wise ; Bas Balck; R <l• Rt:d; Ga' G1ccn 

Ol·Frame A11n: 02-Center Frame; ··-__J Package Part Na 

03-Landing Gear Package Nu 

Frame Arm 

M3x12.3 (hexagan) 

S9012501CCW/ 

S9012502CW 

590121018/ 

S9012201R 

$9010801/ 

89013501 

$9010802 

S9011001 

M3x4 .5 

89012902/ 

$90130021 

89013102/ 

$9013202 

59012901/ 

89013001/ 

$9013101! 

89013201 

89012301R/ 

S9012401G 

c . 

S9012102B/ 

S9012202R/ 

- ~ t S9013701R/ 

-~""""3 $90138018 

-- -- J - 59012503 

--------,.........-~~-=- ~ 

··· ~ 

M3x10.3 

$9012903/ 

89013003/ 

59013103/ 

89013203 

'~-=-$30~ ~ 89010401CCWB/ S9010402i 

89010501CCWR/ 89010502/ $9010403/ 

- .ii - - S9010601CWB/ $9010602/ 89010503/ ~ 1l S9010701CWR 89010702 S90l0603i 

~-----~..:..._ ---- 7~59010703 

e 1" -- .. ---·-·--- . - ~ ~ 

1" e o 

g~ 590123021 

89012402 

M3x12.3 (cheese) 

$9010404/ 

$9010504/ 

$9010604/ 

$9010704 

················-----····················································---·-··--·······-······-··-· ---

Package No. Name 

4 $900 Frame Arm CCW - Black 

5 8900 Frame Arm CCW - Red 

6 8900 Frame Arm CW - Black 

7 S900 Frame Arm CW - Red 

8 8900 Motor Damping Unit 

10 8900 Motor Mount Carbon Board 

Part No. 

S9010401CCWB, 8901040?, 89010403. 

89010404. M3x12.3 (cheese) 

S9010501CCWR, 89010502, 89010503, 

89010504, M3x12.3 (cheese) 

89010601CWB, S9010602, 89010603. 

89010604, M3x12.3 (cheese) 

89010701CWR, S9010702, S9010703. 

89010704, M3x12.3 (cheese) 

89010801 . 89010802, M3x10.3 

89011001 . M3x 4.S 
Spreading Wings S900 Use· Manual 

21 

22 

23 

24 

25 

Center Frame 

89020301 

M2.5x8 (cheese) 

59021502 

M3x6.5 

59021501 

59020901 

59021201l 

59021203/ 

59021101 

59021401 

28 ., _.:·. 

$900 4 1 14 Motor with black Prop cover 

S900 4114 Motor with red Prop cover 

8900 E8C with Red LED 

8900 E8C with Green LED 

8900 Propeller Pack 

,, \• ~ •· . 

r 

.... 

~\I ~ 

~· 

.. 

890121018, 8901?10?8 M3x4 5 

S9012201R, S9012202R, M3x4.!:.> 

S9012301R, 89012302, M3x ·12.3 

(cheese) 

S9012401G. 89012402. M3x 12.3 

(cheese) 

89012501 CCW, S9012502CW, 

89012503, M3x12.3 (hexagan) 

... 

.: 

n 

.. J;l ... 

59021503/ 

89032703 

59020302 

M3.x8 (self-tapping) 

S9021202R 

M2.5x8 (cheese) 

M3x65 
Package No. Name 

3 $900 Lock Knob 

9 $900 Center Frame Support Pillar 

12 8900 Arm Mounting Bracket 

14 8900 Center Frame Bottom Board 

15 S900 Center Frame Top Board 

Spreading Wings 5900 U::Y:' f./<:11 •• 

Part No. 

89020301 . 89020302, M3x8 (self-tapping) 

$9020901, M2.5x8 (dlf:l9SE:l) 

S9021201L. S9021202R, S902 1203, 

M3x6.5 

89021401 , M3x4.5 (choose), M3x8 (selftapping), M3x6.5. M3x5.5 

89021501, 89021502, 89021503, M3x6.5, 

M2.5x8 (cheese) 

11 S900 Frame Arm Mounting Steel Shoft 89021 101 

Landing Gear 

M3x4.5 

S903190:> 

$9031814 

890318 15 

M3x6.5 

89031901 

M2.5x13 

$9031004/ S903.1.'l0fl 

890316021 

$9033303 

$9033301 

$9033302 

$90316031 

S9033305 

$9031601/ 

S903'.l304 

$9031605/ 

89033307 

M2.5x5 

M2.5x8 (cheese) 

$9033308 

$9033.309 

$9033310 

$9033311 

$9033312 

89031713/ 

S9031813 

M2.Sx8 (socket cap) 

$9032601 

$9032602 

$9032603 

$9032606 

M3x22 (soel<et cap) 

89032604 

' 1 

?~ ~ 1 •• / 

'/ / / 

/ 

/ 

/ 

' ' ' 

.. ~ 

,,. #I 

~ 

[] , 

/ 

/ 

' 

/ 

/ 

$9031812 

$9031712 

SS<r.31903 

M3• 6 5 

S903 1904 

8 9031905 

$9031701 

$0030201 

S9033313 

$9033314 

$ 9031801 

(fnc ·-·· ·--, ! : t , M3x8 - --iUJ .• / 

/ 

89031808 

89031809 

M1.6x5 59031810 

59031811 

M2 5x8 (socket cap) 

l a-"' : $9031802 , . • I $9031803 t ~ .f<O 89031804 

~.~~ 59031805 ; .. e .. i M2 5x8(cheese} 

• $9031806 

l 89031807 

(i) ••• ., ... J M3x6.8 

- - - .. o rn $903200, 

S903200l 

Cautionli.il(1 ) Parts within the dotted box are mirrored against each other. 

Except for 59031814 and 5903181 5. 

,. .. ,.. 

"' 29 
-u 

~ 

c: 

!11 

Spreading Wings S900 Usei Manual 

Package No. Name Part No. 

16 

17 

i8 

19 

20 

26 

2 

33 

Miscellaneous 

S900Gimbal 

Damping Bracket 

8900 Retractable 

Module {Right) 

S900 Retractable 

Module (Left) 

S900Gimbal 

Damping 

Connecting 

Brackets 

89031601 8903 602 8903 603.8903160~ . 89031605, 

M2.5x5, M2.5x13 

S9031701.S9031702. S9031703, S9031704,89031705, 

89031706, 89031707, 89031708, 89031709, 89031710, 

89031711. $9031712, 80031713, M1 .6x5, M2.5x10 (socket 

cap), M2.5x8 (cheese). M?.SxS, M3x8, M3x4.5, M3x6.8 

89031801, S9031802, S9031803, S9031804, S9031805, 

89031806. 89031807.89031808, 89031809. 89031810. 

89031811, S9031812,S9031813.S9031814, 89031815, 

M1 .6x5. M2.5x10 (socket cap), M2.5x8 {cheese), M2.5x5. 

M3x8, M3x4.5, M3x6.8 

S9031901 , S9031902,S9031903,S9031904.S9031905. 

M2.5x5. M3x6.5 

8900 Landing Skid 89032001, 89032002 

8900 Landing Gem 89032601. 89032602. 89032603. 89032604, 8903?605. 

Leg 89032606, M2.5x8 (socket cap), M3x22 (socket CRp) 

8900 Battery T my 89030201 

$900 Gimbal 89033301. 89033302, 89033303. 89033304, 89033305, 

Mounting 89033306, 89033307, 89033308, 89033309. 89033310, 

Accessories 89033311, 89033312, 89033313, 89033314, M2.5x5, 

M2.5x13. M2.5x8 {cheese) 

~$9032701 S9013601 

(ct~ l I I 

~ $9032702 

/ 89033401 

1,-)J 

t lY~. ~2/ 

Caution. This part 1s used with Z15-SN I 7N g1rnbaL 

89020103 89020104 
Spreading Wings 5900 User Marr ,.. 

Package No. Name . Part No. 

13 S900CenterFrnme Package 3. 8 1?, 14, 15 

29 S900 Complete Arm [CW-RLO] Package 7, 8, 10, 11 . 22, 23, 25, S901?901 

S9012902, S9012903 

30 S900 Complete Arm [CW-Green} Package 6, 8. 10, 11 , 21. 24. 25, S9013rx11, 

S9013002.S9013003 

31 S900 Cornplelfl Arm [CCW-RED] Package 5. 8. 10. 11 , 22, 23. 25, $9013101. 

59013102.$9013103 

32 S900CompleteArm[CCW-Grefln] Package4 8. 10. 11 , 21,24.25,S9013201, 

S901320?. S901: i2< )'.3 

27 $900 GPS Holder $9032701. 59032702. 59032703. M2.5x8 (cheese) 

28 S900 Screw rack Assorted screws 

S900 Power Cord Plug S9020101.S9020102.S9020103.S9020104 

34 S900 extended L;:inding Gear Leg 89033401 

35 S900 Rubber Oamper for 4114 Motor S9013501 , M3x10.3 

36 S900 Propeller Holder S9013601 

37 S900 4114 Motor-Red Prop Cover S9013701R. M3x12.3 (hexagan) 

38 S900 411'1 Motor-1:31ack Prop Cover S9013801B. M3x 12.3 (hexagan) 

FCC Statements 

This equipment has been tested and found lo comply with the hm1ts for a Class A d1g1tal device, pursuant 

to part 15 of the FCC Rules. These limits are ues1gned to provide rflasonable protection against harmful 

interference when ihe equipment is operated in o commerclal environment. This equipment gP.nflratP.s. uses. 

and can radiate radio frequency energy and, if not installed and used in accordance with the instructior 1 

manual. may cause harmful interference to radio communications. Operation of this equipment in a residenti[-:11 

area 1s likely to cause harmful interference in which cose the user will be required to correct the interference 

<11 his own expense. 

31 
User manual is subject to changp. without prior notice. 

! You mny visit OJI uffical website to ;btain the latest version of user monuoi.-1 

http://www.dji.com/product/spreading-wings-s900 

© 201.; O.JI .A.I! R1gr::; Recervt>d