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Henseleit Three-Dee RIGID, User Manual

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Henseleit Three-Dee RIGID User Manual Download Page 45

M a i n t e n a n c e  /  S p a r e  P a r t s 

Always leave a palm for air below the rotor 

Maintenance advice

It is advisable, especially after the first flights to check the helicopter carefully. Important screws and ball links may have 
loosened. If such things happen at all, they mostly do in the early flights. Screws, which remain tight over the first three hours, 
usually remain tight forever. Take a close look to all the components and lubricate the main rotor shaft in the area of the 
swash plate with thick grease as well as the tail rotor shaft in the area of the tail rotor slider and all gears (do not use any thin 
fluid oil or spray). Frequently check the condition of the O-rings 0102 for damping the feathering spindle. Old and brittle O-
rings may break and fall out of their bushing. Lubricate new rings with Vaseline. Always check the main rotor shaft bearings 
for possible roughness after a crash. If necessary, replace them.

Caution: 

Rough bearings may cause strong interferences. Check the parts for being bent after a crash.

Usually, the main rotor 0410 shaft as well as the feathering spindle 0110-2010 has to be checked after crash.

Also check the tail rotor shaft 0910-2010 and the tail centre hub 0936. When removing the tail centre hub from the shaft you 
can see if the bade holders do a tumbling movement by turning the hub. Unscrew the tail blades, in order to be able to turn 
the attachment screw 0911 using an Allen wrench.

If the tail boom hums one time below 1900 RPM the tail rotor blades may not be balanced exactly or one of the support 
bushings of one of the drive shaft bearings may have become loose. So the drive shaft 0810 cannot be guided any more.

For exchanging the feathering spindle 0110-2010 at the main rotor head it is sufficient to unscrew one of the two caphead 
screws 0119 to pull off the blade holder completely with all its bearings. Do not forgett the grub screw from the seesaw 0140. 
The second blade holder and the shaft can be removed together from the centre hub. Fix the shaft in the vice to unscrew the 
second screw as well and to remove the blade holder. Check the first bearing 0113 in the blade holder for rough run. This 
bearing can be exchanged without having to remove all the other bearings. Simply insert the old shaft, slightly move the 
bearing to and fro while simultaneously pulling it out. Sometimes it is helpful to warm up the blade grip for that. The other 
bearings of the blade holders usually remain undamaged.

Maintenance:

In opposite to a glow helicopter which is covered with oil automaticly the aluminium partes of an electric version which are not 
anodised gets some spots from touching them with perspire fingers. Specially the main rotor and the main blade holders 
which will be touched often whilst carrying the helicopter has to be protected from time to time with a little oil or some 
protection fluid for aluminium.

45

Summary of Contents for Three-Dee RIGID

Page 1: ...Three Dee RIGID Version 2010 2011 M a n u a l March 2011 Jan Henseleit A T T E N T I O N I M P O R T A N T ...

Page 2: ... of the gear play p 16 Pre assembly of the lower part of the chassis p 17 Assembly of the upper part to the lower part of the chassis p 18 Chapter VI RC preparation Servos p 19 Chapter VII Control and servo assembly Assembly group 6 p 20 Chapter VIII Assembly of the electric motor Assembly group 7 p 23 Chapter IX Tail gear Assembly group 9 p 25 Chapter X Assembly and struts of the tail boom Assemb...

Page 3: ...r death and damage of any type can occur due to lack of attention Therefore do not fly over people cars or anything else that might be in danger Safety is very important and is your responsibility as the manufacturer and the sales agents have no control over the use or maintenance of the Three Dee RIGID The company Henseleit Metallverarbeitung and it sales representatives are not liable or respons...

Page 4: ...es with the spiral cut gear wheels module 1 concerning the efficiency robustness and operating noise the different constructive advantages prevail in spite of the small loss caused by the second stage In contrast to the predecessor possible savings could be achieved because the production of the smaller gear wheels is less complex and problematic and the one way drive shaft can be smaller because ...

Page 5: ...py was designed a bit more aerodynamically which is shown by the extreme high speed flight qualities forwards as well as backwards The V Stabi electronic system offers completely new perspectives regarding the high speed flight which were not possible when using a flybar So the advantage of an aerodynamic casing is even more considerable Try speeding It is fun looks elegant and helps to relieve st...

Page 6: ...s test flights with a logger data capture were carried through which persuaded me to refrain from the exaggerated present max rotor speed hype Thanks to light models with flybarless main rotors it is not necessary any more to race with a rotor head speed exceeding the limit of 2000 The properties when flying straight on are even fantastic at 1300 rpm at the main rotor Every flybar head helicopter ...

Page 7: ...BUSH 39mm 1 II RI 0902a GRUB SCREW M4x 4 1 III RI 0238 STUD 6x 58 M3 3 I RI 0630d BALL LINK 19 5mm long 4 I RI 0903 2010 BEVEL GEAR PLASTIC 1 III RI 0238a SILICON TUBE for 0238 3 I RI 0630e THREADED ROD M2 5 45mm 2 I RI 0904 2010 INPUT SHAFT 1 III RI 0239 STUD 6x 62 M3 3 RI 0631 CARBON TAIL PUSH ROD 807mm 1 I RI 0904a LENS HEAD SCREW M4x6 1 III RI 0239a SILICON TUBE for 0239 3 IV RI 0632 BALL LINK...

Page 8: ...ids 200mm Maximum width of canopy 140mm Recommended engine Pyro 700 52 standard shaft Recommended controller Jive 80 HV or Jive 120 HV Recommended speed reduction for 12s operation 12 36 1 13 teeth pinion or 11 47 1 14 teeth pinion Recommended speed reduction for 10s operation 10 04 1 16 teeth pinion or 10 71 1 15 teeth pinion Fixed unchangeable speed reductions Transmission ratio main rotor to ta...

Page 9: ...parts These instructions may be helpful in case you have to disassemble or to change parts There is no need for you to check the pre assembled parts or to disassemble or tighten them At te n ti on Screws which need to be tightened with Loctite are marked with a red L Use the blue Loctite medium strength or a similar product Especially with the small grub screws do not use too much Loctite Otherwis...

Page 10: ...o the corresponding blade holders It is recommended to heat the blade holder slightly using a hot air gun Make sure that the bearing rests rectangular and that it does not tilt when assembling it Now attach the thrust bearing from the fork side First grease the ball cage thoroughly add tenacious grease in the hollow side of the sheet cage Mind the correct order as shown in the drawing To attach th...

Page 11: ...itted to the fuselage during hovering Hereby resonances are avoided and a smooth hovering during all speeds is assured During intended cyclic control inputs the feathering spindle tilts against the relatively hard damped bushings leading to the desired quick reaction of the helicopter For pilots who prefer to fly very hard 3D most of the time with high head speed above 1700 revs there is a option ...

Page 12: ...ell use 90 offset allen wrench and wrench socket to provide sufficient forces The flange is to stay in position due to the friction and not by shear of the screw Do not forget the 0 5mm strong spacer washers on the upper end and put the unit away for the time being Tighten the threaded link balls 0400a with a 3mm long M3 thread and 0400b with a 4mm long M3 thread at the swash plate use Loctite Als...

Page 13: ...an loosen the grub to remove the unit from the shaft again During this proceeding the crown gear is optimally aligned to the disk This way it will be positioned at the final assembly Due to the pressure of the grub screw the disk is not positioned completely centrically and the attachment threads do not allow for an exact position If the crown gear is mounted after having been fastened as describe...

Page 14: ... knife edge seals because that have not proven their worth Proceed the same way with the second bearing and the second square from the other side of the tube Then put the units aside 14 The two ball bearings 0828b are pressed into the bearing flange 0828a until they are flush with the flange The clutch insert 0831a is pressed into the clutch 0831 At first slide the clutch on the shaft 0830 until i...

Page 15: ...tach the tail boom Otherwise the threaded rod protrudes unevenly on one side Now push three of the prepared threaded rods through the corresponding holes from the outside using a large M3 washer according to drawing The canopy mount 0236 is added to one side of the fourth threaded rod which is then moved through the rear upper hole of the chassis without using a washer Attention During the assembl...

Page 16: ...If the tail boom cannot be inserted far enough because the teeth of both gears already contact you have to unscrew the lower bearing flange once again and put correspondingly thinner spacer washers below the crown gear to give it a lower position According to this you have to compensate for the difference above the crown gear flange the by adding spacer washers in order to avoid an axial play of t...

Page 17: ...s of this bags are not yet needed Bag 2 IV Mount the skids 0340 with the skid clamps 0241 as well as the attachment screws 0246 cross recess M3x8 the large M3 washers 0247 the M3 nyloc nuts 0249 to the skid plates so that the screw heads look to the outside The skid is to protrude by 70mm from the rear skid clamp Do not yet tighten the nuts in order to be able to align the skids Position the two 6...

Page 18: ...ud bolts 0253b into the canopy mounting bolts using Loctite and then attach them to the front spacer of the controller supporting plate To tighten the canopy mounting bolt you can use a 7mm flat wrenche Then the two rubber end caps are attached to the ends of the canopy mounting bolts These caps fit exactly in the circumferential canopy edge so that they keep their correct position Bag 2 V Assembl...

Page 19: ...the servo takes its centre position this is not possible with the tail servo The installation has to be switched on when attaching the single servo arms to the multiple teeth shaft of the servo so that it is positioned at right angles to the housing Please note the different alignment of the single servos in the image It is recommended to position the servos according to the drawings and mark them...

Page 20: ...ey are positioned at right angles on the ball of the servo and the swash plates and that the writing 2 5 points to the outside It is difficult to press the ball link on the ball the other way round The rods are fine adjusted later Assembly of the fore aft cyclic servo 20 At first attach the two fore aft cycli servo supports 0645a to the servo according to the drawing using the M2 5x 12 cross head ...

Page 21: ... the back The fore aft cyclic servo coming from outside is led through a lower chassis cutout back into the chassis see photos Chapter XI Bag 6 III Mount the swash plate anti rotation guide 0616 to the chassis using the M3x12 screws 0616a and the washers 0616b The 52mm threaded rod 0630b is pushed through the plastic tube 0630c and the two shortened 15mm ball links 0630a are at first tightened jus...

Page 22: ...ed rods 0633 and glue them into the carbon push rod 0631 on both sides using superglue It should protrude by approx 10 mm from the push rod Make sure that the extending thread may not be covered with glue Slide on the three approx 50mm long shrinking tube 0635 up to the carbon push rod and shrink it such that it is located 210mm before the rear end of the rod and a second one 590mm before the rear...

Page 23: ...the three M4x30 screws 0720c only for the Pyro Attention Make sure that there is no pressure applied to the motor shaft or the pinion when tightening the three attachment screws This causes tension to the bearings So make sure that the screws are tightened step by step and alternately to avoid tension to the motor shaft on the side only tighten the screws provisionally without using Loctite Follow...

Page 24: ...on is to be able to push the pinion as close as possible to the motor bearing shield only with the 0 5mm thick spacer washer between the bearing and the pinion After tightening the grub screw using some Loctite the pinion will prevent the shaft from moving up Do not use the counter bearing for the Scorpion because it will generate unnecessary additional heat Adjustment of the gear play As describe...

Page 25: ...sh the shaft into the bearings of the gear box until it reaches the stop and attach the clutch 0931 from the other side press in clutch insert 0931a before The clutch is also pushed against the bearing and attached to the flat area of the shaft using the grub screw 0931b After that the shaft may not have any axial play in the bearing but the bearings have to run smoothly This may occur when pressi...

Page 26: ...t the washers are centred It is intended to position the washers such that the tail rotor shaft does not have an axial play and that the gear play is not too large but not too small after having tightened the grub screw 0902a For this purpose turn the tail output shaft The bevel gears have to run smoothly in every position and must not jam Experience shows that the gear wheels are run in after som...

Page 27: ...0917 3x 6x 1 0 Attention Only use the original screw 0911 M3x6 12 9 for fixing the unit to the tail centre hub 0936 Screw it down tightly and secure it with Loctite The blade holders can be axially slid to and fro on the centre hub by some tenth to a half millimetres This is intended and avoids tension to the bearing In addition there are no disadvantages during practical operation since the blade...

Page 28: ...ith Loctite The box is pressed into the tail boom without using excessive forces until the cross hole of the tail toom is aligned to the threaded holes in the gear box If it jams the square has already hit against the stop of the clutch at the back This means that the drive shaft unit with the two square parts is too long at the ends In this case pull the unit out of the tail boom once again and c...

Page 29: ... The screw 0939h should be screwed down carefully in order not to damage the hole in the plastic piece The screw 0939i M3x16 has to be tightened to the mounting bolt 0938 carefully In addition use plenty of Loctite as the thread can easily be damaged Attention Do not add any spacer Only use the spacer 0939e since there is not enough thread available If the extending thread of the threaded link bal...

Page 30: ...on strut thinly and use a larger amount of glue for the hole of the support end Immediately wipe off leaking superglue After the glue has dried the two ball links 0807 are attached up to approx 1mm before the carbon boom and aligned such that the eye is parallel to the hole of the boom support end 0805 Attention When assembling the attaching balls 0804 you have the possibility to mount them from o...

Page 31: ...ct the boom from scratches Pay attention for the right mounting angle so that the push rod will be positioned in the middle above the boom Screw the push rod at the front in the clevis mounted to the tail servo Adjust the length of the push rod such that there is a distance of approx 6mm between the tail pitch slider and the gear wall at the neutral position of the servo arm If you do so there sho...

Page 32: ...he receiver as well as the 3 axis stabilisation electronics in the example of the Mini V Stabi If you use a different system proceed correspondingly If you use the normal two part V Stabi it is recommended to download the TDR manual 2009 It contains a detailed description for the installation of the system in the same chapter 32 ...

Page 33: ...ten does not offer further free connections to connect an additional power supply The V Stabi also offers only one connection for the power supply So it is recommended to add a fork cable to one of the servo cables in order to provide an additional power supply via this cable The tail servo cable must be shortened anyway So it is recommended to solder in the additional connecting plug for the seco...

Page 34: ...h the 3 axis stabilisation The advantage of the BEC is that you avoid the unnecessary additional weight of a receiver power supply and that you do not have to worry about the charge condition of a second battery on board In this connection it is important that you take care of your batteries and that you check them from time to time A disconnected plug due to a bad soldered connection does not onl...

Page 35: ...ttery It can be necessary to secure it even more because during fast pirouettes the battery is pulled to the front by enormous centrifugal forces The battery does not have to be secured at the rear side Place the battery in the battery slot such that the two connecting cables are located at the bottom So you do not have to bend them and can lead them to the top to the controller by forming a nice ...

Page 36: ...power The flight characteristics of an electronically controlled TDR cannot be compared to a mechanical solution i e a flybar and clearly get ahead of these systems regarding the precision and the stability of the helicopter In addition they are offered over a wide range of speed A V Stabi is not an autopilot in every situation you have to control the helicopter yourself If you wish to have furthe...

Page 37: ... connect the inputs of the V Stabi central unit to the outputs of your receiver In the manual of your transmitter you can see which of the 4 functions pitch cyclic roll fore aft cyclic and tail is assigned to the single receiver outputs Connection plan Mini V Stabi V Stabi Servos RD Tail servo Ch 3 CYCLIC servo right Ch 2 CYCLIC servo left Ch 1 FORE AFT CYCLIC servo V Stabi Receiver outputs RXA ca...

Page 38: ...tion Immediately pull up the decale from the paper whilst dropping it into the water If the paper gets wet you have only a few seconds for this job otherwise the paper sucks in the water and the surface between the decale and the paper will take of from the paper and will glue onto the decale for ever so that you can t use it any more Use a little trick to slip the canopy over the mechanics Slight...

Page 39: ... which are assembled in the blade holders directly without any additional washers It may occur that the lengths of the rods have to be adjusted differently to align the blades exactly to 0 The reason for this are tolerances of the blades or blade holders that have to be compensated for Possibly you already have screwed in the ball link 0121b into the driving bush 0121a until it reaches the stop Ho...

Page 40: ...t properties Extreme pilots can increase the value later to a certain extent however I consider 15 degrees to be the absolute limit While hovering you will have great difficulties in keeping the helicopter at a height It can also result in mechanical problems regarding the rods at a pitch of more than 13 degrees at full cyclic deflections In every case always make a test and add full cyclic deflec...

Page 41: ...lower RPM At a fixed value the maximum value of the gyro sensitivity is limited by the ascending behaviour during high speed flight with the highest RPM That is why I connected the controller to the throttle channel and programmed 4 different flight conditions auto rotation with different throttle curves in fact they are straight lines Caution The given values in the table can be used for the set ...

Page 42: ... as even as possible When placing it on a plain surface like asphalt or concrete the helicopter may possibly rotate very far around the vertical axis because of the torque impulse when switching on the engine In addition there is the danger of a ground resonance In these cases use grippy silicon rubbers for the skid tubes Basically position the pitch stick to neutral centre position to a pitch of ...

Page 43: ... teeth pinion in a 12s setup for getting more revs and stability during the approach With such a configuration we have got a speed of more than 230km h with the standard Pyro coming down from a high altitude This shows that you do not need such big monster motors for this kind of speed flying Be careful and have a look that the rotor does not get more than 2300 revs and that the blades have not mo...

Page 44: ...power consumption may deviate considerably during different styles of flying When in doubt bring the helicopter down earlier When the battery is discharged to less than 3 Volts the battery could be damaged and not be repaired In order not to decrease the service life of a LiPo battery it is also important to consider and keep the temperature limit of 55 C at the outside Therefore the flight time i...

Page 45: ...w the tail blades in order to be able to turn the attachment screw 0911 using an Allen wrench If the tail boom hums one time below 1900 RPM the tail rotor blades may not be balanced exactly or one of the support bushings of one of the drive shaft bearings may have become loose So the drive shaft 0810 cannot be guided any more For exchanging the feathering spindle 0110 2010 at the main rotor head i...

Page 46: ...op that can be found on my website There are candidates sitting in front of their crashed helicopter and calling me Sunday evening to tell me explicitly what has been damaged The spare parts list with the order numbers has got lost long ago and so any exact information cannot be given Such orders by phone can easily take half an hour So I ask for your understanding to order spare parts exclusively...

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