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Table of Contents
Related Manuals for LZ design LAK17A FES
Summary of Contents for LZ design LAK17A FES
- Page 1 For sailplane 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@lzdesign.si www.front-electric-sustainer.com...
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Page 2: Table Of Contents
FES Maintenance manual Version 1.12 September 2016 Table of Content 1. Important notices..........................3 1.1 Limited Warranty ........................... 3 2. Introduction............................4 2.1 Warnings, cautions and notes ......................4 3. Description of FES system........................5 3.1 General layout ..........................5 3.2 Description of main components ..................... -
Page 3: Important Notices
LZ design retains the exclusive right to repair or replace the unit or software, or to offer a full refund of the purchase price, at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY. -
Page 4: Introduction
FES Maintenance manual Version 1.12 September 2016 2. Introduction This FES Maintenance manual is part of FES System manual, and it contains information for pilots, technicians and mechanics about safe and proper maintenance of the sailplanes equipped with FES (Front Electric Selflaunch / Sustainer) system. This information is given in accordance with requirements of CS 22.1529 for sailplane maintenance. -
Page 5: Description Of Fes System
FES Maintenance manual Version 1.12 September 2016 3. Description of FES system We spent a lot of effort to develop FES system to be simple and reliable, but also that it would need as little as possible of maintenance. However some minimal maintenance is still required. -
Page 6: Description Of Main Components
FES Maintenance manual Version 1.12 September 2016 3.2 Description of main FES components 3.2.1 Electric motor Motor construction is outrunner brushless synchronous permanent magnet motor with electronically controlled commutation system 3 phase. Rotor position is determined by 3 hall sensors and additional 4th hall sensor for automatic propeller positioning. This motor can work only in combination with suitable electronic motor Controller which transform DC current from Battery packs to 3 phase current which supply motor. -
Page 7: Propeller
FES Maintenance manual Version 1.12 September 2016 3.2.2 Propeller The foldable fixed pitch carbon fibre composite propeller is high quality product. Technical data and limitations of the propeller: Number of propeller blades: Maximum power on a propeller shaft: 23 kW; Maximum rotational speed: 4500 RPM +5%;... -
Page 8: Fcu Instrument
FES Maintenance manual Version 1.12 September 2016 3.2.3 FCU instrument FCU instrument was developed for LZ design’s FES system by LXNAV company, who is otherwise well known in gliding community by their excellent flight computers (LX8000, LX9000) - electronic variometers. -
Page 9: Battery Packs And Its Chargers
FES Maintenance manual Version 1.12 September 2016 3.2.4 Battery packs and its chargers Standard FES battery pack contains 14 cells which are all wired in serial. For FES application you need two of them. They are marked with serial number and a letter first as A pack and second as B pack! We are using one of the best high power SLPB (Superiol Lithium Polymer Battery) cells available on the market produced by world renowned manufacturer Kokam. -
Page 10: Wirings
FES Maintenance manual Version 1.12 September 2016 3.2.5 Wirings FES wiring consists of power, signal and 12V wires, and different types of connectors. For power cables we use high quality Betatherm 155 wires with cross section of 35 sqmm. For signal wires we use high quality tinned and shielded wires. For all 12V circuits we use aviation grade Spec 55 wires. -
Page 11: General Fes Wiring Scheme
FES Maintenance manual Version 1.12 September 2016 3.3 General FES wiring scheme: Page 11 of 26... -
Page 12: Fes Maintenance
FES Maintenance manual Version 1.12 September 2016 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... -
Page 13: Normal Procedures And Inspections
FES Maintenance manual Version 1.12 September 2016 4.2 Normal procedures and inspections 4.2.1 Rigging and de-rigging of a FES equipped sailplane It is valid the same as described in manual of pure sailplane. Warning: Make sure that connecting cable is not installed, between Battery packs (if they are fixed inside the fuselage) between rigging and de-rigging procedure. -
Page 14: After Flight Inspection
FES Maintenance manual Version 1.12 September 2016 4.2.3 After flight inspection Caution: Always remove connecting cable between the packs after landing. (At older packs with external BMS: Always remove Power fuse after landing and put safety covers on free terminals.) Warning: Make sure that Power switch is OFF before removing connecting cable;... -
Page 15: Cleaning And Clean Keeping
FES Maintenance manual Version 1.12 September 2016 • For heavier fuselages is recomended that support which holds fuselage is aranged behind a spinner, otherwise loads on motor and propeller blades could be to high during transportation on bad roads. It is recomended to use soft cotton canopy cover which goes also around spinner nose of sailplane, which than also prevent opening of propeller blades. -
Page 16: Adjustments
FES Maintenance manual Version 1.12 September 2016 4.3 Adjustments The following FES system items have to be checked and adjusted if out of allowable range: 1. Gap between spinner and fuselage, should be around 0,5-1,0 mm. You can adjust the gap with tightening or un-tightening of 4 nuts on back side of mounting wall (valid only for LAK types) 2. -
Page 17: Removing And Installing The Motor
FES Maintenance manual Version 1.12 September 2016 7. Place fixation plates 8. Tighten battery pack fixation knobs 9. Insert and secure temperature sensor (DATA) connectors, to each battery pack 10. Insert RED (+ contact) pin on cable to front pack, and BLACK (– contact) pin on cable to rear pack power connectors 11. -
Page 18: Mounting And Removal Of The Propeller
FES Maintenance manual Version 1.12 September 2016 • 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 refer to the FES propeller manual. Page 18 of 26... -
Page 19: Lubrication Instructions
FES Maintenance manual Version 1.12 September 2016 4.5 Lubrication instructions There are only 3 parts in FES system which requires lubricating: - two propeller pins which hold propeller blades should be very 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. -
Page 20: Periodical Inspections
FES Maintenance manual Version 1.12 September 2016 5. Periodical inspections 5.1 Introduction In this section there is defined a list of inspections to ensure safe operation of FES during its lifetime. The periodical inspections shall be performed by qualified staff authorized to perform the work at the time of sailplane inspections. -
Page 21: Annual Inspection
FES Maintenance manual Version 1.12 September 2016 5.4 Annual inspection It is necessary to check the sailplane every 12 months in accordance with the 100 flight hours inspection. Additionally check if there was any update of FES manuals on FES website under download section! 5.5 Inspection after rough landing, or after ground loop •... -
Page 22: Parts With Limited Service Life
FES Maintenance manual Version 1.12 September 2016 6. Parts with limited service life The following FES system parts have limited service life: -12V Pb battery should be replaced every 5 years (if is installed in a glider) Other components of FES system are necessary to replace according their condition. 7. -
Page 23: Repair
FES Maintenance manual Version 1.12 September 2016 9. Repair 9.1 List of potential problems Charger do not start charging Check if power cord is plugged into wall outlet Charger do not start charging Check if connecting cable is connected between Battery pack (DATA) and charger Charger do not start charging Check grid fuse Capacity bottles on FCU do not fill up... -
Page 24: List Of Spare Parts
FES Maintenance manual Version 1.12 September 2016 9.2 List of spare parts -propeller blades -propeller 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 fuse inside of FCC box... - Page 25 FES Maintenance manual Version 1.12 September 2016 9.3 Soldering In case that any soldering of wires is required, use only suitable equipment for the job. There is plenty info available on the web, about proper soldering techiques, here are just basic tips: -use quality soldering iron, or soldering station (http://en.wikipedia.org/wiki/Soldering_iron) -keep the iron tip clean.
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Page 26: Revision History
FES Maintenance manual Version 1.12 September 2016 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 Minor updates v1.12 Page 26 of 26...
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