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FES Maintenance manual Version 1.12  

September 2016 

Page 12 of 26 

 
4. FES maintenance  

 

4.1 Maintenance of main FES components 
 
4.1.1 Motor maintenance 
 

FES motor is designed so that practically does not need any special maintenance.  

 

Warning:

 

Opening or disassembling of the motor would cause a forfeit of 

warranty claims! It could be also very dangerous, due to very strong magnets 
on rotor!

 

 

Though, it has to be considered that no foreign objects at all can enter the interior 

of the drive. Further, it is necessary to protect the motor from humidity, dirt, paint, glues 
etc. If this is ignored, a proper functionality of the motor can not be guaranteed and 
irreparable damages are possible. In case of damage, ship the motor back to the 
manufacturer for repairs. Unintended handling leads to secondary damages. 

 

Note:

 

Keep magnetic memory cards or electronic devices out of the rotor’s 

close-up range, because the strong magnetic field can cause a delete of data. 
Be also careful with medical devices (e.g. pacemakers) which might be 
sensitive to strong magnetic fields.

 

 

The small gap between the stator and the magnets of the rotor function-bound has 

a thickness of only a few tenth millimeters. Here, the danger of foreign objects 
accumulating in this gap exists but can be heard by scratching-sounds. In this case 
spinner should be removed and the motor should be blown-out with compressed air. Do 
not at all simply keep on using the drive. Be especially aware of cuttings which can almost 
irremovably stick to the magnets. In this case, the only thing that helps is a disassembly of 
the drive by the manufacturer. 

 

4.1.2 Propeller maintenance 
 

Please refer to FES Propeller manual about. 

 
4.1.3 Battery packs maintenance 
 

Please refer to FES Battery pack manual. 

 
4.1.4 FCU instrument maintenance 
 

Please refer to FES FCU manual. 

 
 
 

Summary of Contents for AS 13

Page 1: ...ailplane types LAK17A FES LAK17B FES MiniLAK FES Silent 2 Electro FES AS 13 5m FES HPH 304ES FES Discus 2c FES Ventus 2cxa FES LZ design d o o Brod 3D 1370 Logatec Slovenia tel 386 59 948 898 info lzd...

Page 2: ...S test run on the ground 13 4 2 3 After flight inspection 14 4 2 4 Ground handling 14 4 2 5 Tie down and ground towing 14 4 2 6 Storing and transportation 14 4 2 7 Cleaning and clean keeping 15 4 2 8...

Page 3: ...bility and warranty for installation and failures of components which could be result of improper installation even if they occur later during normal use if the cause of a failure is with wrong instal...

Page 4: ...irements of CS 22 1529 for sailplane maintenance 2 1 Warnings cautions and notes The following definitions apply to warnings cautions and notes used in this manual Warning Means that the non observati...

Page 5: ...but also that it would need as little as possible of maintenance However some minimal maintenance is still required In order to be able to perform maintenance it is first required to know locations o...

Page 6: ...phase current which supply motor Electrical motor power ratings type FES LAK M100 at 116V on motor controller and loaded with propeller type FES LAK P10 100 Maximum torque 75 Nm Maximum current 200A...

Page 7: ...light Operating conditions the propeller can be operated in any normal environment conditions except hail sand storm or similar FES propellers as described herein is designed and tested according to C...

Page 8: ...cation 1 RPM input 2 LED INPUT 1 digital output for BRAKE 1 analog output for POWER adjustable with rotary knob 4 temperature Controller Motor 2 battery Audio signal 1 analog input for measuring curre...

Page 9: ...ed with 16 LEDs to monitor its operation For and terminals GEN2 packs only we chose to use Amphenol Radsok hyperbolic high power contact technology High current female contacts are hidden inside of th...

Page 10: ...supply to electronic circuit board in motor controller BMS inside of battery packs is used to balance and to control charging It can be connected to PC with a special cable in order to monitor chargin...

Page 11: ...FES Maintenance manual Version 1 12 September 2016 Page 11 of 26 3 3 General FES wiring scheme...

Page 12: ...Keep magnetic memory cards or electronic devices out of the rotor s close up range because the strong magnetic field can cause a delete of data Be also careful with medical devices e g pacemakers whi...

Page 13: ...should be performed a pre flight inspection Check the sailplane itself as requested before a flight Perform FES test run on the ground as described below 4 2 4 FES test run on the ground 1 Remove prop...

Page 14: ...ifting When opening and closing the canopy propeller blades must be always positioned horizontaly 4 2 5 Tie down and ground towing Do not leave FES equipped sailplane outside on the rain unless it is...

Page 15: ...upported in a fuselage dolly positioned just forward of the main landing wheel opening Forward stop or a belt must be provided for the fuselage dolly in order to prevent slipping forward and leaving t...

Page 16: ...y pack 8 Fix temperature sensor cable to the side of battery compartment box 9 Un tighten battery pack fixation knobs 10 Take the fixation plate out 11 Firmly grip the front battery by a carrier strap...

Page 17: ...r cables Before disconnection is recommended to mark them as A B C and draw their position against each other on list of paper 5 Un secure six M8 bolts and unscrew them out One of M8 bolts which is be...

Page 18: ...1 12 September 2016 Page 18 of 26 Braking of propeller works OK FCU instrument is functioning properly 4 4 3 Mounting and removal of the propeller For mounting and removal of the propeller blades ref...

Page 19: ...slightly lubricated ventilation valve pin which goes trough the shaft of motor should be very slightly lubricated so that travels forward and backward easily under spring pressure Avoid of too much l...

Page 20: ...ng in a hangar or in a trailer 5 3 Inspection after every 100 flight hours Apart of required check list for the glider after every 100 flight hours it is necessary to check also thoroughly the FES sys...

Page 21: ...ing or after ground loop check Battery packs if there is any visible damage check the FCU instrument for proper operation check if there is any damage on the propeller blades in case they touched the...

Page 22: ...placards Maximum speed to fly with motor running 8 Balancing of rotating parts In order to have a smooth run of FES complete assembly of motor spinner and propeller blades are balanced to vibration l...

Page 23: ...ck power switch flip it OFF an ON a few times When you are reporting a problem please describe the problem and its behavior as much as possible accurately It might be helpful for you and also for us i...

Page 24: ...ller pins with spacer crown nut and safety pin propeller holder composite covers FCU instrument FCC FES electronic circuit plate main contactor power switch or key switch motor controller motor 2A fus...

Page 25: ...wiki Soldering_iron keep the iron tip clean A clean iron tip means better heat conduction and a better joint use a wet sponge to clean the iron tip between soldering of joints keep the iron tip well...

Page 26: ...ual Version 1 12 September 2016 Page 26 of 26 10 Revision history October 2013 Initial release of Maintenance manual v1 0 November 2013 Minor updates v1 1 June 2015 Minor updates v1 11 September 2016...

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