Futaba L35-N4581 Radio Control Transmitter User Manual

Futaba Corporation Radio Control Transmitter

Contents

user manual II

Pre-Flight PreparationDay-Ahead Preparation ............................................................... 4-1Charging and replacing the flight transmitter battery ............................................... 4-1Charging and replacing the sprayer transmitter battery (sold separately) ............... 4-3Fuel and refueling .................................................................................................... 4-4Precautions for Initial Flight Following Periodic Inspection.......... 4-5Fuel .......................................................................................................................... 4-5Helicopter battery..................................................................................................... 4-5Initial flight procedure............................................................................................... 4-5Handling the Helicopter ............................................................... 4-6Transporting the helicopter ...................................................................................... 4-6Checking radio signal interference........................................................................... 4-9Radio signal distance test ...................................................................................... 4-10Main rotor installation and removal and tail rotor inspection.................................. 4-11Side cover installation and removal ....................................................................... 4-134
4-1Pre-Flight PreparationCharging and replacing the flight transmitter batteryCharging the batteryBe sure to use the dedicated charger for chargingthe battery.1Place the battery on the charger.2Insert the power plug into the outlet. The redlamp will illuminate while charging.3After charging is complete, remove the battery.After the battery is fully charged, the red lampwill turn off.Refer to the following for the battery’s charging timeand standard operation time.4A warning lamp will indicate a warning if the bat-tery must be replaced during flight. (See page 3-12.)Day-Ahead PreparationMake sure to use a fully charged battery for aflight. An insufficiently charged battery canlead to an operation failure.Charging temperature range: 0 to 40 °CCharging time: 4 hoursStandard operation time: 4 hours minimumWWARNING
Pre-Flight Preparation4-2Battery replacementReplace the battery as follows.1Loosen the 2 battery cover knobs behind thetransmitter by turning them 90 degrees to theleft.2Open the battery cover.3Unlock the battery lock, slide and remove thebattery to the left.4Insert a charged battery and slide it to the right.5Close the battery cover, and turn and tighten thebattery cover knobs 90 degrees to the right.Battery storageBattery cover knobsBattery coverBattery lockDo not use the battery or leave it in an areaexposed to direct sunlight or in other high-temperature areas such as inside a sun-scorched car.Store it between -20 °C and 50 °C.NNOTICE
Pre-Flight Preparation4-3Charging and replacing the sprayer transmitter battery (sold sepa-rately)Charging the batteryBe sure to use a dedicated charger to charge thebattery. Charge it as follows.1Make sure the power switch on the transmitter isOFF.2Remove the battery cover from the bottom.3Insert the charger’s plug into the charging jack atthe bottom of the transmitter.4Insert the power plug into the outlet.5The pilot lamp of the charger will illuminate, thuscharging the battery.Refer to the following for the battery’s charging timeand standard operation time.6After charging is complete, reattach the batterycover.Make sure to use a fully charged battery. Aninsufficiently charged battery can lead to asprayer operation failure.Charging temperature range: 0 to 40°CCharging time: 10 hoursStandard operation time: 2.1 to 3.3 hoursIf a battery is new or has been in long stor-age, its operation time after the initial chargecan be shorter than normal. In this case, thebattery’s normal performance with respect tothe operation time will recover after severaltimes of repeated charging and discharging.Please remember about this aspect during aninitial use.NNOTICENNOTICECharging jackDedicated chargerBattery cover
Pre-Flight Preparation4-4Fuel and refuelingThis product uses regular gasoline. Do not mixengine oil with gasoline.1Have regular gasoline ready.Use fresh gasoline purchased recently (within 1week) from a gasoline station.2Remove the fuel tank cap and start refueling. Make sure the filter net is attached to the fillerinlet.●Stop the engine before refueling and donot bring a source of fire in the vicinity.●Do not pour fuel over the refueling limit(the red line marked in the filter net).Excess fuel can ooze out during flight,which is dangerous.●After refueling, securely tighten the fueltank cap.The fuel can spray out of the tank duringstorage or transport in a vehicle with hightemperature.WWARNINGNNOTICEFuel tank capFuel tankRefueling limit (red line)Filter net
Pre-Flight Preparation4-5FuelAfter the helicopter undergoes a test flight following the completion of a periodic inspection at the dealer, thefuel is drained from the fuel tank. This prevents the fuel from getting stale while the helicopter is being storedby the customer.Before the customer takes the helicopter on an initial flight, fill the tank with fresh gasoline purchased recently(within 1 week) from a gasoline stand.Helicopter batteryBecause the tank was drained of its fuel, it will take a while for the fuel to reach the engine.If the engine does not start within 5 seconds after the starter switch is pressed, allow the starter to rest forabout 10 seconds. This is done to allow the battery voltage to recover and to cool the starter motor. Then,press the starter switch again.If the starter motor spins weakly, replace the helicopter battery or recharge it with a dedicated charger.Initial flight procedureA periodic inspection consists of inspecting various components of the helicopter as well as performing acompletion test flight. Following a periodic inspection, an initial flight should be performed calmly, in order to“break in” the various components and to allow the operator to get accustomed to piloting.1Fill the tank with fresh fuel. Set the chemical and water payload to 50 percent of a normal flight.2Perform a pre-flight inspection.3Start the engine, take off, and allow it to hover for a minimum of 2 minutes at a maximum altitude of 1 meterabove ground.4In the next stage, mainly hover at 2 to 3 meters above ground. Set the maximum flare angle at 10 degrees,the maximum flight speed to 10 km/h, and steer gently to fly for a minimum of 10 minutes. At this time,make sure there are no malfunctions in terms of helicopter vibration, noise, and the helicopter movement inresponse to the operation of the sticks.5When landing the helicopter for refueling, be sure to turn off the engine, and observe that the main rotorhas stopped rotating. Then, open the side cover and visually inspect for coolant or oil leaks.6After a flight, perform a post-flight inspection, cleaning, and service.Precautions for Initial Flight Following PeriodicInspectionNever use leftover fuel. Doing so can cause the engine to start poorly or other malfunctions.NNOTICENever attempt to recharge the battery with an automobile charger or to connect it to an automobilebattery through the use of booster cables. Doing so can damage the helicopter’s electronic compo-nents.NNOTICE
Pre-Flight Preparation4-6Transporting the helicopterTransport wheel (sold separately) installation and removalTo transport the helicopter by rolling it on theground, attach transport wheels to the front of therunners. Installation (and removal) is performed by2 persons as follows.1Use your foot or hand to lower the stone guard,in order to lift the front end.2Install (or remove) the transport wheels in therecess located between the wheel and the pipein the front of the runner.Handling the Helicopter●The muffler reaches a high temperatureimmediately after a flight. To preventburns, do not touch it.●Be careful not to poke your eyes with theantenna or the like.●Be sure to remove the chemical tank fromthe sprayer. If the helicopter is equippedwith a liquid sprayer, fold the boom beforetransporting. Refer to the sprayer owner’smanual for details.●Make sure the main rotor blades do notcome in contact with the ground or sur-rounding objects. Doing so will result inequipment damage.●Do not hold the helicopter by the tail body,tail cover, radiator, or antenna. Doing sowill result in equipment damage.●Before moving the helicopter, be sure toturn the main switch OFF. Failure to do socan transmit shocking impacts to the sen-sors, causing the helicopter to operateunintendedly.●To transport the helicopter by rolling it onthe ground, be sure to attach transportwheels (sold separately).WWARNINGNNOTICEChemical tankBoomTransport wheelRunnerStone guard
Pre-Flight Preparation4-7Moving forward/backwardLift the tail slightly by holding the grip handle of thestone guard to move the helicopter forward (orbackward).Lifting and lowering1Make sure that 2 persons or more lift the helicop-ter, with each person holding the runner asshown.Make sure to hold the grip handle to movethe helicopter forward or backward. Do nothold the tail cover or antenna, as this couldlead to equipment damage.NNOTICEGrip handleStone guard●Do not hold the helicopter by the exhaustpipe of the muffler or the bar for attachingthe sprayer tank, as this could lead toequipment damage.●Transport carefully so as not to damagethe tail rotor.NNOTICE
Pre-Flight Preparation4-8Transporting1Use a truck to transport the helicopter.2Remove the main rotor blades before loading thehelicopter on a truck bed. (Refer to page 4-12.)Use a truck to transport the helicopter.Do not attempt to fly the helicopter to anothersite, as this could lead to an accident.Make sure to remove the main rotor bladesbefore transporting the helicopter.WWARNINGNNOTICE
Pre-Flight Preparation4-9Checking radio signal interferenceBecause this product is operated by radio signals,the presence of radio signals with the same fre-quency in the vicinity will cause the signals to cross,which will adversely affect the control of the flight.Before a flight, be sure to use a radio signal moni-tor, which is sold separately, to check the radio fre-quencies that are being transmitted in the area.(See the operation manual of the radio signal moni-tor for its operation procedure.)During monitoring, make sure the power switch forthe helicopter transmitter is turned OFF.The dedicated sprayer transmitter also uses radiosignals to operate the sprayer.The sprayer could be rendered inoperable due tounexpected radio signal interference or the effectsof surrounding obstacles.●The unmanned helicopter for industrialapplications uses radio signals to operate.Because the helicopter can go out of con-trol due to unexpected radio signal inter-ference, pay particular attention to thepresence of radio signal interferencebefore and during a flight.●Cancel the flight if you detect the same fre-quency that you will be using in the vicin-ity. Otherwise, the radio signal interferencecould render the helicopter out of control,and could lead to serious accidents.●Check for radio signal interference regu-larly, including during breaks betweenflights.●Check for radio signal interference eachtime you move to an area other than anadjacent area.WWARNING
Pre-Flight Preparation4-10Radio signal distance testPerform a radio signal distance test to make surethere are no malfunctions.Before performing this test, set the transmitterpower ON and the helicopter main switch ON.1Retract the transmitter’s antenna to its shortestposition.2The operator to operate the transmitter and thechecker to check the helicopter should stay apartby maintaining an approximate distance of 50meters between the helicopter and the transmit-ter.3Make sure the servos operate properly in accor-dance with the operation of the transmitter.If the radio signal reaching distance is less than 50meters, cancel the flight and contact the dealer fora repair.If the radio signal reaching distance is tooshort, the failsafe mode (radio signal interfer-ence) might kick in during flight.WWARNING50 m
Pre-Flight Preparation4-11Main rotor installation and removal and tail rotor inspectionMain rotor installation and removalInspect the rotor for damage or dirtiness.Main rotor installation1Insert the main rotor blades into the bladeholder.2Use an 8 mm hex wrench to tighten the retainingbolts.Check the tightening of the retaining bolts as fol-lows.●Tighten each retaining bolt until it comes to astop. Then, back it out between 45° and 90°.Make sure they are not tightened or loosenedexcessively, which could cause vibrations.●Check that the main rotor blades movesmoothly by moving them slightly in the direc-tion of rotation. They are designed to stop bycoming in contact with rubber stops if they aremoved extensively.●There are two main rotor blades: right andleft. Install them by matching the colormarked on the respective main rotor bladeto the blade holder.●Each main rotor blade has a top and bot-tom. Install it so that its leading edge isoriented in the direction of rotation asshown in the cross section diagram.●To prevent the top and bottom of the mainrotor from being inadvertently inter-changed, there is a recess in the rubberdamper on the main rotor side, and a pro-trusion on the rubber damper on the bladeholder side.●The main rotor blades are properlyinstalled if their retaining bolts do notwobble when the blades are shaken verti-cally, and if they move smoothly with asmall force applied in the direction of rota-tion.●Both rotor blades should be tightenedabout equally.NNOTICETIPMain rotorBlade holderCross section diagramRotation directionRetaining bolt Main rotorNo wobbling in this directionMoving smoothly in rotation directionMarkRetaining boltHex wrenchMarkRotation directionAlign the groove with the bolt
Pre-Flight Preparation4-12Main rotor removalThe removal is the reverse (2 → 1) of the installa-tion.Main rotor inspection●Inspect the main rotor surface for dirtiness,cracks, fissures, or chipping.●Inspect the cushion tape for peeling or otherdamage.Tail rotor inspection●Inspect the tail rotor surface for dirtiness,cracks, fissures, or chipping.●Inspect the cushion tape for peeling or otherdamage.●Inspect that the tail rotor moves smoothly inthe rotation direction.If a rotor blade’s surface is dirty, use householddetergent on a soft cloth, wring the cloth, and use itto wipe the rotor blade’s surface.If the rotor blade is damaged, cancel the flight andrequest a repair by your dealer.Cushion tape●If a main or tail rotor blade does not movesmoothly or is damaged, it could generatenoise or vibration.●The main rotor and the tail rotor are impor-tant components. Handle them carefully.NNOTICECushion tape
Pre-Flight Preparation4-13Side cover installation and removalSide cover removal1Undo the 7 rubber hooks that are located alongthe top of the helicopter by lifting them as shownon the right.2Open the side covers from side to side.3To completely remove a side cover after it isopen, hold the retaining hooks to pull the sidecover sideways and remove it from the frame.Side cover installationReinstall the side covers in reverse order ofremoval.Rubber hookDo not hold a side cover during removal, asthis could lead to damage. The side covercan break if direct force is applied to it. Openthe side cover slowly so as not to scratch theside cover.Reinstall the side cover by aligning the cut-out in the center of the side cover with thebracket in the center of the payload bar.Place the right and left side covers and lockthem in place by engaging the 7 rubberhooks.NNOTICETIPNNOTICESide cover installation position
Flying ProcedureFlying Precautions ....................................................................... 5-1Engine Starting ............................................................................ 5-3Pre-start checks ....................................................................................................... 5-3Engine starting ......................................................................................................... 5-4Takeoff Precautions and Checks................................................. 5-6Takeoff procedure.................................................................................................... 5-6Post-takeoff checks.................................................................................................. 5-7Flight Modes ................................................................................ 5-8Landing and Engine Stopping...................................................... 5-9Landing .................................................................................................................... 5-9Engine stopping ....................................................................................................... 5-9General aerial application pattern .......................................................................... 5-115
5-1Flying ProcedurePreparation - TakeoffTakeoff - HoveringHovering - FlyingFlying Precautions●Do not take off or land on sloping terrain, as this could cause the helicopter to overturn, oradversely affect its control. As a rule, the helicopter should take off and land on a level surface.Make sure to select an appropriate location before commencing a flight.●Select areas that are appropriate for takeoffs and landings, as described below. Failure to selectan appropriate area could lead to an accident.• Select flat farm roads or vacant lots with minimal foot or vehicle traffic.• Check that there are no obstacles in the vicinity.• Check that there are no objects that could get picked up by the wind (such as paper, plastictape, empty bags, mowed grass, etc.).WWARNINGDo not operate the rudder extensively right before a takeoff, as this will cause the helicopter tomove abruptly in the direction of the rudder after the takeoff.NNOTICE●Do not operate the sticks abruptly as this could cause the helicopter to lose balance and lead toan accident.●For the first flight of the day, allow the helicopter to hover for 1 or 2 minutes while the enginewarms up, and check that the helicopter operates normally. Failure to do so will prevent theengine from attaining the proper power, which could lead to an accident.WWARNING●Adjust the load to leave some margin in the payload. A takeoff with the maximum payloadrequires maximum horsepower and careful flying technique. An excess payload at this pointcould lead to a serious accident. Therefore, hover the helicopter to check that there is an amplemargin in payload before continuing with the flight.●Keep the distance between the operator and the helicopter within 150 m, and the flight altitude at3 - 4 m (from the ground or from the crop). If the distance is any greater, it will prevent the opera-tor from monitoring the posture of the helicopter and adversely affect the signal reception condi-tions. For safety, further shorten the distance if there are any obstacles in the area. Failure to flythe helicopter within the maximum distance limit could lead to an accident.WWARNINGDo not turn continuously while banking in one direction for more than 10 seconds, as this willcause the helicopter to drift as if the trim has shifted.NNOTICE
Flying Procedure5-2Flying - Landing●Do not lower the throttle stick to the slowest position during a flight, as this could disrupt theengine speed control and cause the helicopter to descend abruptly.●If the warning light shows an abnormal condition, the helicopter exhibits irregular behavior, or anunusual symptom occurs (such as vibration, sound, coolant leakage, or foul odor), immediatelyland the helicopter in a safe area. Continuing with the flight in this state could lead to an acci-dent.●Do not press the engine stop switch during a flight, as this will stop the engine and cause thehelicopter to descend abruptly. However, to force the helicopter to land in case of an emergency,press the switch after making sure that it is safe to do so.●Abort the flight or aerial application if poor weather conditions exist as described below. Failureto do so could pose operation difficulties, which could lead to an accident. In addition, it couldadversely affect the application and the effectiveness of the sprayed chemicals.• Wind velocity in excess of 3 m per second at a height of 1.5 m above the ground.• Rain, fog, or lightning in the close vicinity.●Observe the following until the engine has come to a complete stop after landing:• Do not turn OFF the power of the flight transmitter.• Do not remove the battery in the transmitter.Failure to observe these precautions will trip the failsafe device (automatically turning the speedcontrol ON), which will cause the engine to accelerate suddenly.●Never enter the area within 20 meters of the helicopter until the main rotor has stopped com-pletely and the engine has stopped. Also, do not allow other people to approach this area. Enter-ing the area within 20 meters can lead to a serious accident.WWARNING
Flying Procedure5-3Pre-start checks1Check that the trim positions on the transmitterare proper, extend the antenna, and press andhold the power switch ON.• If the amount of trim deviates greatly from thecenter, the buzzer will sound 3 sets of 4 beeps.When this happens, return the trim lever to itsnormal position.• Be sure to charge the battery before use. Dueto the nature of the lithium-ion battery, thebuzzer may beep 4 times, even if the battery isnot fully charged. If a low voltage warning isemitted, promptly replace or recharge the bat-tery.2Turn the helicopter’s main switch ON.The system performs control configurations andself checks.Check that the flight lamps on the control panelflash regularly during configuration. Also, checkthat all the warning lamps on the back of the heli-copter illuminate.If there are no problems, the flight lamp on the con-trol panel will turn off, and the warning lamp will illu-minate blue, indicating that the control configurationhas completed.Engine StartingSTARTEROFFONMain switchStarter switchFlight lampControl panel●Do not move the helicopter during config-uration.●Configuring the control with the helicoptertilted could cause errors. Therefore, it isrecommended to select a flat area for thispurpose.NNOTICE
Flying Procedure5-4Engine starting1Check that the transmitter’s flight switch is in theSTART position.2Check that the transmitter’s throttle stick is in theslowest position.3Check again that the elevator trim lever, ruddertrim lever, and aileron trim lever are in their neu-tral position.4Press once the engine stop switch on the trans-mitter. The flight lamp on the control panel willilluminate, enabling the engine to start.5Fully check (by point and call, etc.) the surround-ings for safety.If the elevator trim lever, rudder trim lever, oraileron trim lever are in a position other thanneutral, the helicopter might not ascendstraight up during takeoff.WWARNINGFlightswitchThrottle stickAilerontrim leverElevatortrim leverRudder trim leverEngine stop switch
Flying Procedure5-56Stand on the left side of the helicopter, and whilesecurely supporting the main rotor, keep thethrottle stick at the slowest position with yourright thumb, and press the starter switch withyour left hand.7While making sure that the throttle stick does notrise, quickly walk away from the helicopter, to aminimum distance of 20 m.Support the main rotor with your body asshown in the illustration. Otherwise, the rotorcould strike and injure you if the helicopter isimproperly adjusted (such as the idle speedbeing too high or the clutch being engaged).●If the engine does not start within 5 sec-onds after the starter switch is pressed,allow the starter to rest for about 10 sec-onds. This is done to allow the batteryvoltage to recover. Then, press the starterswitch again.●The safety device will trip and prevent thestarter motor from operating if any of thefollowing conditions have not been met:• The power switch of the transmitter isON.• The transmitter’s flight switch is inSTART position.• The throttle stick of the transmitter is inthe slowest position.• The engine stop switch was presseddown previously.WWARNINGNNOTICENever turn your gaze away from the helicop-ter when walking away from it.DDANGER20 m minimum
Flying Procedure5-6Takeoff procedure1To fly under speed control, turn the GPS switchON. If the GPS switch is OFF, the flight will oper-ate under postural control.2Check that the throttle stick on the transmitter isin the slowest position. Then, set the flight switchto FLIGHT. The blue warning light will turn off,and the helicopter is ready to fly.3Gradually raise the throttle stick to enable thecontrol to automatically increase the enginespeed.4Slowly raise the throttle stick to take off.Takeoff Precautions and ChecksDo not operate the sticks abruptly as thiscould cause the helicopter to lose balanceand lead to an accident.●Do not operate the rudder extensively rightbefore a takeoff, as this will cause the heli-copter to move abruptly in the direction ofthe rudder after the takeoff.●If speed control cannot be used due toGPS signal conditions, turn the GPSswitch ON, which causes the yellow warn-ing lamp to flash. This will render the flightto operate automatically under posturalcontrol.WWARNINGNNOTICEThrottle stickGPS switch
Flying Procedure5-7Post-takeoff checksPerform the following checks:1While the helicopter is hovering, make sure itbehaves normally in response to the operationsof the sticks.2When the sticks are kept still in their neutral posi-tion while the helicopter is hovering, the helicop-ter will drift front-and-back and side-to-side,depending on wind conditions. If the helicopterdrifts constantly in one direction, land it in a safearea to make fine adjustments at the trim lever ofthe transmitter.For the first flight of the day, allow the heli-copter to hover for 1 or 2 minutes while theengine warms up, and check that the helicop-ter operates normally. Failure to do so willprevent the engine from attaining the properpower, which could lead to an accident.WWARNINGElevatortrim lever Ailerontrim leverRudder trim lever
Flying Procedure5-8Flight modes (postural control, speed control)●This unit has 2 types of flight modes: postural control mode (GPS switch OFF) and speed control mode(GPS switch ON).●The postural control mode is for stabilizing the posture of the helicopter, and does not stop the helicopterwhen the stick is in the neutral position.●The speed control mode is for stabilizing the helicopter speed, and controls the speed during a forward orbackward flight, as follows.• It maintains the speed at the point in time when the elevator stick is operated, causing the yellow warninglamp to illuminate. It maintains this speed even if the stick is set to the neutral position.• Even if the elevator stick is tilted to the maximum position, the speed will not exceed 20 km/h.• To stop, operate the elevator stick in the opposite direction (flare) of thrust. After the yellow warning lightturns off, set the elevator stick to its neutral position. This will cause the helicopter to stop and hover.Flight ModesIn the speed control mode, do not continue tilting the stick to its maximum level because it is dan-gerous.WWARNING
Flying Procedure5-9Landing1After hovering the helicopter over the landingpoint, gradually lower the throttle stick to land it.2The blue warning light illuminates 10 secondsafter landing. To take off again without stoppingthe engine, set the flight switch momentarily tothe START position, then to the FLIGHT position.The blue warning lamp will turn off, enabling thehelicopter to fly.Engine stopping1After the engine speed has dropped, press downthe engine stop switch on the transmitter until theengine has come to a complete stop.2Place the flight switch to START.3Press the rotor brake switch.Landing and Engine StoppingNever allow anyone to approach within 20 mof the helicopter.DDANGERThrottle stickFlight switchNever enter the area within 20 m of the heli-copter until the main rotor has stopped com-pletely and the engine has stopped. Also, donot allow other people to approach this area.Entering the area within 20 m can lead to aserious accident.●Do not press the engine stop switch beforethe engine speed has dropped.●The rotor brake will not engage unless thethrottle stick is in the slowest position.●Use the rotor brake to stop the main rotorafter the engine has stopped. Operatingthe stick while the rotor speed is high cancause the helicopter to tilt, which is dan-gerous.DDANGERNNOTICEEngine stop switchRotor brake switchFlight switch
Flying Procedure5-104Before turning the main switch of the helicopterOFF, check the indications of the self monitor. Ifan error code appears, contact your dealer.5Turn the main switch of the helicopter OFF.6Press and hold the power switch on the transmit-ter to turn it OFF.STARTEROFFONMain switchSelf monitorObserve the following until the engine hascome to a complete stop:• Do not turn OFF the power switch of thetransmitter.• Do not remove the battery in the transmit-ter.Failure to observe these precautions will tripthe failsafe device (speed control turns ONautomatically), which will cause the engine toaccelerate suddenly.WWARNINGPower switch
Flying Procedure5-11General aerial application patternWhen operating an unmanned helicopter for the purpose of spraying agricultural chemicals, ensure safe oper-ation, as well as the safety of humans, animals, agricultural products, and the environment during aerial appli-cation.Example: Disease and pest control of a rice paddy• Flight altitude: 3 to 4 m above the field• Flight speed: 10 to 20 km/h• Flying interval: 3.75 m (using center nozzle), 5 m (using dropping method), or 7.5 m•Wind velocity: 3 m/s maximumFlight speed between 10 and 20 km/hFlight altitude3 to 4 m above the fieldFlying interval of 3.75 m (using center nozzle), 5 m (using dropping method), or 7.5 mWindWhen refueling, never enter the area within20 m of the helicopter until the main rotor hasstopped completely and the engine hasstopped. Also, do not allow other people toapproach this area. Entering the area within20 m can lead to a serious accident.When GPS signal reception is favorable, ifthe flight speed in the postural control modeexceeds 20 km/h, the red warning lamp willilluminate (speed indication function). There-fore, keep the flight speed low so that thislamp will not illuminate.DDANGERNNOTICE
Post-Flight Cleaning and ServicingPost-Flight Cleaning and Servicing.............................................. 6-1Washable areas ....................................................................................................... 6-1Non-washable areas ................................................................................................ 6-2Sprayer cleaning ...................................................................................................... 6-26
6-1Post-Flight Cleaning and ServicingAgricultural chemicals, dust, dead bugs, and pollen could adhere to the helicopter after an aerial application.If they remain stuck to the helicopter, they will cause a chemical reaction, which will lead to rust, insufficientlubrication, sealant deterioration, and discoloring.To prevent these problems, use the methods described below to clean and service the helicopter after a flight,in preparation for the next flight. While cleaning, check all areas of the helicopter for any damage, abnormalwear, loose fasteners, etc.Washable areas• The helicopter may be washed by directly spray-ing with a tap water hose.Do not use a high-pressure cleaner as it couldenter the internal electronic components.1Side coversThey may be washed only after they have beenremoved from the helicopter. Do not wash them in the installed state becausethe water could splash on other parts.2Tail body, warning lamp, frame, undercover3Leaves and runners4RadiatorClean it by using caution not to damage the fins.Do not spray high-pressure water from below.Post-Flight Cleaning and ServicingThe helicopter is very hot immediately after a flight. Therefore, to prevent burns, clean it only afterits temperature has lowered sufficiently.Washing the helicopter with water will cause a sudden change in temperature, which could createproblems in electrical parts. Therefore, clean it only after its temperature has lowered sufficiently.WWARNINGNNOTICEDo not use a high-temperature, high-pres-sure cleaner to clean areas 1 to 4 above, as itcould damage the film and paint on the sur-face.After cleaning the washable areas of the heli-copter with water, use a soft, moist cloth thathas been wrung to wipe the moisture off thesurface.NNOTICE324221
Post-Flight Cleaning and Servicing6-2Non-washable areas• Use a soft, moist cloth that has been wrung towipe the dirty areas on the following parts.1Control panel2Main and tail rotors3Main and tail rotor head areas4Servos and electrical parts5Frame top6Transmitters (flight and sprayer)Sprayer cleaning32144364425For details on the cleaning method of thesprayer, see the operation manual of thesprayer.TIP
Post-Flight Cleaning and Servicing6-3
Simple MaintenanceBattery Recharging Procedure .................................................... 7-1Pre- and Post-flight Inspection..................................................... 7-31. Transmitter inspection (before) ........................................................................ 7-42. Fuel inspection (before and after) .................................................................... 7-53. Coolant and oil inspection (before and after) ................................................... 7-64. Main head area inspection (before and after) .................................................. 7-95. Tail body area inspection (before and after) .................................................. 7-116. Drive shaft inspection (before and after) ........................................................ 7-137. Servo inspection (before and after)................................................................ 7-148. Self monitor inspection (before and after) ...................................................... 7-159. Radio signal distance test (before)................................................................. 7-1510. Electrical system inspection (before and after) .............................................. 7-1611. Helicopter antenna inspection (before and after) ........................................... 7-197
7-1Simple MaintenanceThis helicopter uses a sealed battery.It is not necessary to refill or inspect the batteryfluid.To inquire about the proper recharging procedureor any problems with the battery, contact yourdealer.Battery Recharging ProcedureThe battery produces flammable gas (hydro-gen gas). Mishandling it could lead to anexplosion resulting in injuries. Make sure toobserve the following:●Fire is strictly prohibited. Do not short acircuit, cause a spark, or let any fire suchas cigarettes come near. This could causean explosion.●Do not connect to the battery terminals inthe wrong order. Doing so could cause afire.●Recharge in a well ventilated place.●Place the battery upright for recharging.●Keep gasoline, oil, or organic solvent fromgetting on the battery, as this could causethe battery case to crack.●Do not drop it or apply any other strongimpact.●The battery fluid is diluted sulfuric acid.Contact with the skin, eye, or clothingcould lead to a serious injury.●Keep out of reach of children.First Aid●In the unlikely event that the battery fluidgets on the skin, clothing, etc., immedi-ately rinse with copious amounts of water.●If it enters the eye, immediately rinse itwith copious amounts of water, and seekmedical attention.●This is a sealed 12 V battery.●This battery has been filled with fluid andcharged. No fluid level inspection or refill-ing is necessary.●For recharging, use the dedicated sealedbattery charger (sold separately). Contactyour dealer for details.● If the battery is to be left unused for a longtime, remove the battery from the helicop-ter, and recharge every 3 months.●When replacing the battery, contact yourdealer, and make sure to use a genuinebattery.WWARNINGNNOTICEPositive terminal (red cap)Negativeterminal (black cap)Battery
Simple Maintenance7-2Battery RemovalRemove the battery only after consulting yourdealer.1Be sure to turn the main switch of the controlpanel OFF.2Remove the undercover (do not disconnect thewarning lamp wiring).3Remove the battery box cover.4Disconnect the battery’s negative terminal, andpositive terminal, in that order (as shown on theright).5Remove the battery from the helicopter.Battery ReinstallationReinstall the battery in reverse order of removal.The proper procedure for removing the bat-tery is to first disconnect the negative termi-nal, followed by the positive terminal.Reversing this order can cause a short circuitin the battery.NNOTICEPositive terminal (red cap)Negative terminal (black cap)BatteryBatteries are consumables.●Do not interchange the cables to the posi-tive and negative terminals of the battery.Doing so can cause a fire or malfunction.●The proper procedure for reinstalling thebattery is to first connect the positive ter-minal, followed by the negative terminal.Reversing this order can cause a short cir-cuit in the battery.TIPNNOTICE
Simple Maintenance7-3To ensure safe and efficient operation of the prod-uct, make sure the operator performs the pre- andpost-flight inspections. In addition, record theresults in the flight inspection log.In preparation for the next flight, inspect the heli-copter after a flight and make sure each area is freeof problems.Pre- and Post-flight Inspection●To prevent injury, make sure the engine isstopped before performing an inspection.●The helicopter is very hot immediatelyafter a flight. To prevent burns, allow thetemperature of the helicopter to lower suf-ficiently before performing an inspection.WWARNINGInspection Areas Inspection Items Flight RemarksFront Rear1TransmitterBattery state-of-charge, operation, antenna installation condition, trim position2Fuel systemInspect the fuel level and check for any dust in the tank and filter, any leaks from piping, cracks, deformation, and installation.3Coolant and oilInspect the coolant level, oil level, and check for any leaks from piping, cracks, deformation, and installation.4Main head areaInspect the main rotor for cracks, deformation, and chipping, peeling of cushion tape, rod installation and movement, drag bolt and nut conditions.5Tail areaInspect the tail rotor for cracks, deformation, and chipping, peeling of cushion tape, rod installation and movement, tail rotor movement in direction of the drag, rubber damper wear, and damage.6Drive shaft Inspect for cracks, deformation, installation, wobble, and operation.7Servos (throttle and rudder), slide servoInstallation (servo body, connector), wobble, operation8Self monitor Hour meter indications, whether error codes are displayed9Radio signal distance test Radio signal reach distance (50 m with antenna at shortest height)0Electrical systemInspect for cracks, deformation, installation, damage, connector connection, control unit damper, spark plug cap installation.AHelicopter antenna Installation condition, and rust
Simple Maintenance7-41. Transmitter inspection (before)Inspect the flight transmitter battery state-of-charge, operation, and antenna conditions.1Perform inspection with the transmitter’s powerturned OFF.●Check that the sticks move smoothly.●Check that the trim positions have not deviatedsignificantly.●Check that the antenna is securely attached tothe transmitter body.2Perform inspection with the helicopter’s andtransmitter’s power turned ON.●Check the state-of-charge of the battery in thetransmitter.●Check that the self monitor on the electrical boxdoes not show any errors.●Move the rudder servo and check that it movessmoothly.●Move the slide servo, check that the servomoves smoothly, and that the linkage moveswithout catching.●Operate the throttle and check that the throttlebody pulley moves smoothly.●With the antenna retracted to its shortest height,operate the transmitter from a distance of 50 m,and check that the servos operate as intended.* Check the throttle valve movement by way of thepulley movement. If the transmitter has a malfunction or thebattery state-of-charge is low, the transmitterwill be unable to send radio signals during aflight.WWARNINGTighteningThrottle cable Throttle body pulley
Simple Maintenance7-52. Fuel inspection (before and after)Inspect the fuel level and check for any leaks.Before performing this inspection, turn OFF both the main switch for the helicopter and the power switch forthe transmitter.●Check the fuel tank for deformation or fuel leaks.●Check that there is no dust inside the fuel tank.●Check the fuel hose for wear, abrasion, or fuelleaks.●Inspect the air cleaner element for dirtiness.Fuel tankA dirty (or clogged) air cleaner element canlower engine performance.NNOTICEAir cleaner
Simple Maintenance7-63. Coolant and oil inspection (before and after)Inspect the coolant level, leakage, and oil leakage.Before performing this inspection, turn OFF boththe main switch for the helicopter and the powerswitch for the transmitter.1Coolant piping●Check the pipes and hoses for wear or abrasion.●Check the pipe and hose connections for coolantleaks.2Radiator●Check the radiator body and radiator stays forany deformation.●Check the radiator cover for cracks or looseness.●Check that the coolant level in the recovery tankis appropriate.●Check the pipe and hose connections for coolantleaks.A slight stain of coolant or oil does not indi-cate an abnormal condition. However, if thecoolant or oil is dripping, cancel the flightand request a repair by your dealer.●Coolant leakage will adversely affect thecooling performance of the helicopter andcause it to overheat.●Oil leakage will reduce the internal lubrica-tion of the transmission and damage thegears and bearings.When necessary, remove the radiator caponly after the engine has cooled down. If theradiator cap is removed immediately after aflight, when the coolant is extremely hot, thescalding liquid could shoot out and causeburns.TIPNNOTICEWWARNINGRecovery tankRadiator staysRadiator
Simple Maintenance7-73Cylinder●Check that there is no oil leakage at the matingsurfaces of the case.●Check that there is no oil leakage at the cylinderhead mating surface.4Clutch and transmission case●Check that there is no oil or coolant leakage.Cylinder head mating surfaceCase mating surfaceTransmission caseClutch

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