Chapter 27-General Wiring
Contents
1. 7 14 100 8 A 413 HDA CF 9 14 100 QTY A o o N o m hA Amm ee _ _ _ ee _ ee ELECTRIC FUEL PUMP WIRING DESCRIPTION OPTIONAL ITEM not included with kit Battery Box Mount Yes Battery Box Yes Bolt Undrilled Yes Bolt Undrilled Yes Hose Yes Hose Clamp Yes Nutplate Yes Phenolic Block 1 x 3 x 3 8 Yes Power grid Yes Rivets Yes Washer Flat yao Washers Yes Contact Lancair Avionics Airspeed Safety Switch Yes Taxi Light Landing Light Kit Yes Taxi Light Landing Light Kit Yes Dimming Rheostat Yes Instrument Light Switch Xes Left Nav Strobe Lights Whelen Yes Right Nav Strobe Lights Whelen yes Nav Light Rocker Switch Yes Power Pack Whelen Yes Strobe Light Rocker Switch Yes Contact Lancair Avionics PART NO P N QTY DESCRIPTION OPTIONAL ITEM not included with kit TRIM SYSTEM WIRING Contact Lancair Avionics FLAP WIRING Contact Lancair Avionics PITOTTUBE ANTENNA PLACEMENT Contact Lanair Avionics Note Optional Parts available through Lancair Avionics Kit Components Inc TAIAT m5 Chapter 27 6 08 10 07 INCH LEGACY 22 GENERAL WIRING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 3 CONSTRUCTION PROCEDURES A Basic Wiring Techniques The wiring diagrams of this chapter do not include wire sizes Wire sizes are deter mined from the wire size diagram The wire2. OR 97756 D Landing Gear Wiring The landing gear wiring consists of three main systems hydraulic pump gear indicator light and an airspeed safety switch The hydraulic pump 1s controlled through pressure switches that activate the solenoids The gear up solenoid should be protected by an airspeed safety switch This switch basically leaves the circuit open until the aircraft reaches a pre set speed This is to prevent accidental gear retraction on the ground The switch has an adjustment feature for setting the speed We suggest you set the speed between 80 to 90 KIAS The switch is available through KCI An important part of the gear system is the gear indicator lights The gear indicator light switches are installed on the over center links This very simple circuit basically closes when the over center link is locked in the down position There is also a light to indicate the pump is running This light is typically amber in color and indicates when either the up or down circuit is activated Mount the indicator lights as high as possible on the panel to take advantage of the shade provided by the glare shield As with any light it is hard to see if it is lit if the sun is shining on it The lights are usually mounted in a triangular pattern with the nose gear indicator above the two mains The landing gear indicator lights work through the micro switches you have already installed on the main gear and nose gear This circuit is as simple
3. AWG 16 Fig 27 11 Pitot Heat Switch Circuit Breaker 10A v To Ground Josey J Electric Door Seal Wiring Electric Door Seal Wiring Fig 27 J 1 The inflatable cockpit seal is kept at 20 psi by a remotely mounted air pump In this system a pressure switch activates the pump when the seal pressure falls below 20 psi When the pump 1s turned off the pressure in the door seal will vent out through the panel mounted on off switch Refer to Chapter 9 for seal installation Inflatable Cockpit Seal 4940 01 Bn Z Air Lines DS Seal J Pneumatic Door seal switch on instrument panel in the ON position Pressure is connected to the door seal MJTV 3 H Pump Door seal switch is shown here in the OFF position Pressure line is blocked off and the door seal is vented to the cockpit 20 psi Pressure Switch 0155406041032 When pressure reaches 20 psi pump is shut down until pressure falls again etc etc L _ AINCHR LEGACY 27 16 Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 Pull type circuit breaker or install Chapter 27 a switch in the power line Check valve prevents pressure from bleeding off through the pump 4LO 051 000 Electric Door Seal Pump 326 0 12 or 326 0 24 0 02 15 02 GENERAL WIRING k Antenna Placement In the constantly changing world of avionics what you read
4. There are variations of course but this section will stick to the basics Inside the cockpit instrument lights or post lights illuminate the panel for night flying A cabin light is also ii sometimes installed A schematic is given for the simple instrument wiring but not for the cabin light The following schematic shows the wiring of the position strobe lights A more complete explanation of this system is provided in the installation kit commonly purchased along with the lights and power pack Basically there Strobe light Nav light are two wires coming out of each light unit for the red green white position lights The other three wires out of each rocker switch rocker switch unit are used for the strobes ACS part 14 100 pice Pan E TEAN NOTE Also refer to the installation and service manual supplied by Whelen Nav position Nav position light green light red i Strobe Strobe E Whelen A 413 HDA CF Whelen Power Pack Whelen A600 PR A600 PG Right Nav Strobe Lights Left Nav Strobe Lights TA IA r eF Chapter27 REV 0 02 15 02 AANICAIR Wess LEGACY 27s GENERAL WIRING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 Landing and Taxi Lights Fig 27 E 2 Taxi Light 4926 Left Landing Light 4926 Left The optional landing and taxi light installations are installed in the stub wings You can install a taxi light and landing light in the right
5. as it gets When the micro switch at each gear location is grounded out the indicator light on the instrument panel illuminates Next to the gear position indicators mount the hydraulic pump indicator which is amber in color This light will now illuminate when the hydraulic pump 1s running like when the gear is cycling or when hydraulic system pressure falls off Airspeed Safety Switch PITOT INPUT CO 710 ADJUSTMENT A O STATIC INPUT E y Typical Mounting D AB RED Common WHITE WIRE Not BLUE WIRE normally used Normally open Landing Gear Wiring Diagram Fig 27 D 1 Green Gear Lights 22 hicro DIODES FOR TRANSITION To Buss Switch LIGHT USE ANY COMMON 1 4 Bar ce F Gear Left WATT RECTIFIER DIODE Gear Nose 22 7 k Gear Right nal j F To Buss Bar gt 10 e I ac Low Pres 7 sure Switch 22 High Pres sure Switch Jo o TRANSITION RED 35A 4 __ LIGHT 7 7 Je jee irspee N INO Switch i P N 710 BLUE Master a Relay 22 poe x Amp Size to load requirements Breaker approx 5 Chapter 27 0 02 15 02 IV ED p INCH LEGACY 7 GENERAL WIRING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 E Lights Wiring Position Strobe Light Schematic Fig 27 E 1 Exterior lighting on the Lancair Legacy consists of wingtip position strobe light a landing light and a taxi light
6. earlier labeled Now we have the motor turning 1n the correct direction for flaps UP and the motor will be stopped by the correct magnetic reed switch or limit switch NC Limit switch NC Limit switch H 6 The flap control switch has two possible wires that could connect to the above limit switch 2 See drawing Relay of a typical control switch in figure 27 H 4 Either wire can be used on limit switch 2 this will however DPST determine which way the flap control switch moves to extend the flaps Naturally you want the movement on the control switch to be either downward or aft when dropping flaps Ifthe direction ends up being opposite just turn the switch around in its instrument panel mounting hole T AZTAT I EG A CY 27 13 REV 0 02 15 02 SANCAR EGNI A CAIR LEGACY 77 _____GENERALWIRING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 Flap Relays Fig 27 H 2 To CONTROL SWITCH and To GROUND THROUGH CIRCUIT BREAKER To MOTOR b To 2 LIMIT SWITCH To 1 LIMIT SWITCH To MOTOR a yl o G Flap relay ve a J schematic oe 187 spade connectors typ 1 2 3 4 5 6 H7 The magnetic reed switch will have three possible contact points Use the center contact and ONLY the contact labelled W NOTE When setting the wiring for the limit stops calculate extra wire so that you will be able to fit the custom dust cove
7. in this section may be outdated in a year As an example Loran was the hot thing just a few years ago With the GPS the Loran system is now obsolete This Antenna Placement section outlines recommended placement and location Fig 27 K 1 l GPS Recommended placement is under the dust cover It must be far enough aft so the antenna can see through the window Remember The GPS signals will not penetrate carbon The antenna itself is 5 7 normally supplied with the GPS 2 Marker Beacon Recommended placement is in the joggle provided in front of the spar Also see section 3 B The antenna part number is CL 102 A ee A 3 Transponder Antenna Recommended placement is just aft of the main spar in line with the com and I N Ma marker beacon antennas Later kits have a premolded joggle for the transponder antenna Refer to S section 24 D 2J 4 Com Antenna Recommended placement is in the joggle provided just aft of the aft spar See section 3 N C the antenna part number is CL122C Ifyou re installing 2 com radios you can use a splitter or install 2 antennas Q gt TCAD Antenna Call Lancair Avionics 6 Stormscope Antenna See chapter 25 5 Also call Lancair Avionics 7 Nav Antenna The NAV antenna may be in either the left or right wing tip The antennas are pre installed at the factory 8 ELT not shown Refer to section 24 B 1 VV Ly JD 27 17 Chapter27 REV 1 09 18 02 ARCA aac
8. size depends on load length and voltage As an example 1 14 feet installation 2 28V source 3 20 ampere draw Find the wire size Answer Find the number 14 under 28 volts source column Follow the horizontal line to the night until intersects the slant 20 ampere line At this point drop to the bottom of the chart The value falls between No 16 and No 14 select the larger size No 14 The wire will be placed in conduit so curve applies The maximum continuous current for No 14 wire is 17 amperes Note Use aircraft quality wire In choosing the proper wire consider requirements operating temperatures and environmental conditions LON TINUOUS CIRCUIT VOLTAGE WIRE LENGTH IN FEET YOLT DROP VOLTAGE DROP Wire Size Continuous Flow Fig 27 A 1 CIRCUIT 10 15 20 JU will fu 100 ZEA AAA CA MAMA ee eee eee ee eee eee A Ae Al 4 e aA LAA ALA CALL Ve a pt S O A C ee U A CONTINJOUS RATING AMPERES WARE IN CONDUIT AND BUNDLES CONTINUOUS RATING AMPERES SINGLE WIRE IM FREE AIR 12 10 D 6 4 2 1 V X V A WIKE SIZE LEGEND WW Eamnple 1 BERR Example 2 AX No 14 Wire at 17 Amperes gt No 12 vWire at 20 An peres Fa LL Canter 27 v 02 15 03 GENERAL WIRING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 B Legacy General Wiring Battery Box Installation Fig 27 B 1 The battery box installs af
9. stecesccsnscesaeteavaea acetone decaiauieeay innin EE NEEE EEN Ei 27 15 you This 1s generally ol good idea at least for the radio stack wiring but for the basic elec L Pitot Tube Heat Wiring EEn 27 16 trical system in your Lancair Legacy you might be surprised how simple it is to wire J Electric Door Seal Wiring 0 0 cccccccccceccccsccseessesceseceseseveseetvetvessateeeessesesessessenseees 2116 This chapter 1s a general wiring chapter The diagrams are generalized for typical K Antenna Placement 20 00 0000 0cccccccccecccccceeeccccecueccececueeeeceeeneceeseaaeeeeesraeeseceuanereeeraneeeeens 27 17 Lancair legacy installations Equipment types and locations will vary from aircraft to air craft This chapter serves as a start to base your customized schematics on Since this 1s a composite airframe you don t have the luxury of grounding to a con 1 INTRODUCTION 7 ye ee venient aluminum surface You must bring a few ground posts into the cockpit then termi nate all your circuits to one of these posts Although only one cockpit ground post is shown in the following schematic it is a good idea to have several even a couple in the gear box area for the systems behind the wings Ahead of the firewall circuits are usually grounded to one of the engine bolts which is in turn grounded to the battery This chapter will deal with the wiring necessary to get your Lancair Legacy functional We will show you how to get power to the engine starte
10. wing left wing or both wings Refer to section J of chapter 3 for the installation procedure Beware that the circuit breaker size depends on whether you install one or two landing lights on one breaker Instrument Light Schematic Fig 27 E 3 There are an increasing number of instrument lighting methods The old standby postlights mounted adja cent to every instrument are giving way to internally lit instruments and lighted instrument covers Whichever method you choose most likely they will be wired similarly to the schematic below Landing Light 4927 Right Taxi Light 4927 Right Instrument light switch ACS Part 14 100 Dimming rheostat ACS Part 0144 Instrument lights Post lights AANCAIR IEGACY 7 GENERAL WIRING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 F Electric Fuel Pump The electric fuel pump mounts in front of the main spar in the center console There are two different versions of pumps installed depending a single stage for the Lycoming installations and a dual stage for the Continental installa tions refer to chapter 4 section G The Lycoming installations use a single stage pump high boost The boost pump is used for priming the engine takeoff not landing and emergency The Continental installations use a dual stage Again the high boost is used for priming the engine and for emergency and the low boost can be used fo
11. REVISION LIST CHAPTER 27 GENERAL WIRING The following list of revisions will allow you to update the Legacy construction manual chapter listed above Under the Action column R amp R directs you to remove and replace the pages affected by the revision Add directs you to insert the pages shows and R to remove the pages PAGE S AFFECTED REVISION amp DATE ACTION DESCRIPTION 27 1 through 27 17 0 02 15 02 Current revision 1s correct 27 17 1 09 18 02 Part Correction 27 1 3 12 15 04 Updated table of contents with page numbers 27 2 3 12 15 04 Part number update 27 4 3 12 15 04 Part number update 27 2 27 5 6 08 10 07 Part number change only JAA TAIPA cacy 27 REV 6 08 10 07 nh bt GENERAL WIRING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 tor starter and master solenoid mag switch and the primary and avionics power sources Chapter 27 General Wiring buses Contents Wiring can be one of the most intimidating of all the different skills you learn when constructing a homebuilt aircraft What makes matters even worse 1s that when you ask 1 INTRODUCTION 27 three different wiring experts about the best way to wire an alternator system you will most likely receive three different answers If you plan on wiring your own Lancair Legacy Start reading Tony Bingelis is the guru of homebuilding how to His S
12. ding edge of the rudder a j x ed N a Rudder l Fd we p 7 5 Pin Connector available 7 Elevator Trim from the Ray Allen company Servo S6A T2 10A Ref 5 Pin Connector available from the Ray Allen company Rudder Trim Servo 2 T2 7A S4 Ref we lt 7 ma pt Rudder trim servo We suggest running the ra P A p wires through the rudder spar and through p a so the rudder leading edge Run the wires wee we straight down to the base of the sternpost ar and then forward a wer j s we Elevator aS a a Vertical Sternpost we Secure the wires as required Be sure to P g allow for control surface movement Pi TAJTA TED 27 1 Chapter27 27 REV INCH LEGACY Eat GENERAL WIRING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 0 02 15 02 Aileron Trim Servo Wiring Fig 27 G 2 Both wires out of the aileron servo are white For now you can wire the servo without identifying which 1s which When the system is completely wired check that the trim tab moves the servo the correct direction Ifit doesn t switch the wires at one of the plugs Run the wires through the dry bay and into the T fitting of the main spar Run the wires along the base of the main Outboard Wing Section Main Spar e O l 8 spar and through the center console Drill a hole Center Wing Section Main Spar through the aft spar for the servo wires Aft S
13. ees Simply LIMIT SWITCH zero the smart level in the up position As the flap travels it will read the actual flap setting FLAP MOTOR parr o E WITH LIMIT SWITCH ASSEMBLY 2 When it is all adjusted properly check that the limit stop screws are snug and check that the hex nut that secures the clevis onto the flap motor is also tight against the clevis TYPICAL FLAP CONTROL SWITCH must be DPDT momentary ON switch WARNING If the flap clevis check nut is not tight it could allow the actuator shaft to turn in the clevis This could eventually thread the actuator out of the clevis and cause a total flap failure Be sure to set this check nut 3 The limit stop assembly is provided with a dust cover that can be wire tied over this installation A couple of dabs of silicone will also help secure it in position 200 SPADE CONNECTORS 18 WIRE TYP POSITIVE TO MOTOR Note Establish the proper order of wires from motor To GROUND BUS This wire must be and motor must run so as to ex tend the actuator shaft instead of retracting it TO POSITIVE BUS through a ek RELAYS 10 amp fuse or circuit breaker 187 SPADE CONNECTORS TYP BLT 4 JED 97 15 REV 0 02 15 02 AAMC 600 75 GENERAL WIRING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 L Pitot Tube Heat Wiring Pitot Tube Pitot Tube Heat Wiring Recommended Minimum Wire Size
14. inact Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756
15. par Strobe NAV Lights Run wires through leading edge 2 Pin Connector conduit Aileron Trim Servo T4 5 T5 NAV Antenna Run wires through the leading edge By running the servo wires close to the hinge line the wires will not have to bend so much when the aileron is deflected saving wear and tear APAID in 27 12 REN 0 02 15 02 EA ot Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 H Flap Wiring The relays can be secured to the motor or elsewhere The Lancair Legacy flaps are driven by the 12V electric linear actuator Also the limit stops are set by the H1 Per figure 27 H 2 connect the wiring to these relays and attach the wires to their respective locations The custom limit stop micro switch assembly that mounts directly over the actuator shaft It is operated by magnetic spade connectors on the relays are 187 in width Use 18 wire reed switches NOTE There are 4 wires that will travel forward to the instrument panel There are two DPST double pole single throw relays required to connect them The part number for the I Ground 12V system is LY1 and for 24V it is LY1 24V Also a DPDT Momentary On switch is needed to operate the flaps A Up limit switch Part MS24658 23D 3 Down limit switch 4 Positive to the relays See Figure 27 H 1 for the flap wiring Ifyou have trouble interpreting the schematic don t worry the addi tional dra
16. portplane 2 PARTS LIST E 27 2 Builder column in Sport Aviation Magazine and his books are a wealth of information on all aspects of homebuilding including wiring If you have kept your back issues of Sport 3 CONSTRUCTION PROCEDURES ooo cc cccecccseneeeeesaae ees 27 3 Adanan the Binec clans inthe dealt Nae wid fre 1000 earen A Basic Wiring Techniques a spcecessencnseancacivossseisctuwescinied cos enna aiadiaiateresuddadom audio smenoneteacrasalaaee 27 3 gaining al good understanding of electrical systems B Legacy General Wiring E eases aueencercaseahaca aes 27 4 Robert Nuckolls 1S also an excellent reference for wiring He publishes a newsletter C Basic Aircraft Wiring a a aaa a E E nan 27 6 The AeroElectric Connection and also contracts his services to individual builders to de D Landing Gear Wiring aa aa aaa EE EEE LEE EELE a sign custom electrical schematics He can be reached at E Ugh Wiring aoaaa aa aa EE LEE EEEE EELEE EEEE 278 Medicine River Press 6936 Bainbridge Road F Electric Fuel Pump snes ug eee E a E 27 10 Wichita Kansas 67226 1008 G Trim System Wiring i 2s recanctsnse yaa sansiisndonvernetanueiaaudrsinbedontvonnnctawnmpaseoroieindunmemedeeneass 27 11 316 685 8617 H Flap Wiring acs seisceudsiencecsssnnccodetsuevnesdsnediuidtasmnaudlwnsvneydleastersdintvawdsiasindellwendmalasseneuiacaion 27 13 Another popular option is to have a local electrical pro do your electric system for Setting the Flap Limit Stops eco
17. r then after the engine 1s fired up how to get power from the alternator into the cockpit From this point various systems such as lights trim systems hydraulic system fuel pump etc will be shown in wiring diagrams from a the cockpit It seems that more and more breakers are being incorporated into the modern electri cal system You ll notice in most of the wiring diagrams a breaker symbol is shown adja E EE OES OOO CO E AE CEE DERO TAOS Deal S V a cent to the master bus bar The number in the symbol is the breaker size NDB s and all those other various systems that can fill up a panel so expensively These items a must be wired by the builder or a local radio shop using their own expertise The basic goal of Install circuit breaker sizes according to manufacturer s recommendations this chapter 1s to acquaint you with important parts of the electrical system such as the alterna AINCR cy LUELLA LEGAC Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 2 PARTS LIST H PART NO P N BASIC WIRING TECHNIQUES LEGACY GENERAL WIRING 1 4038 2 VB 35 3 AN3 5A 4 AN3 10A 5 193 4 6 145 0000 5324K 7 K1000 3 8 PH 250 1 x3 x 3 8 9 _737 L2K 14 10 MSC 34 11 AN960 10 12 AN960 10 BASIC AIRCRAFT WIRING LANDING GEAR WIRING 1 710 LIGHTS WIRING 1 4926 Left 2 4927 Right 3 0144 4 14 100 5 A600PR 6 A600 PR
18. r over this limit switch installation and be able to route all the wires through its exit hole which is on the END H 8 After completing all the wiring test run the system and check for two things a The limit switches must stop the travel in their respective directions b The motor must be self braking That is when you release the control switch the motor should stop quickly instead of gliding or coasting for two or three seconds Such coasting is not acceptable and will not occur if everything is wired correctly Flap Reed Switch Fig 27 H 3 Adjust motor travel by sliding switch along channel lock A This tab not used Normally Open To DPST relay So To flap control switch This end of rod 1s magnetized and will trip the switch thus stopping the motor Slide over motor actuator shaft and lock down with set screws This end bolts to the Set shaft end of flap motor SCrew Reed switch Lower locking tab down with set screw into lower tab in channel groove Magnetic reed switch one for opposite end is not shown Second reed switch mounts similarly at this end GENERAL WIRING ENOAR ve6804 a A ecw Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 Flap Wiring Diagram Fig 27 H 4 Setting the Flap Limit Stops l When adjusting the DOWN limit stop run the flaps to the proper down limit position 40 degr
19. r vapor suppression Fuel Pump Wiring Lycoming Installation Fig 27 F 1 Q black black P N for 12V Pump 5456 00 1 Ref A Primer switch SPDT MOM On Push button Boost pump rocker switch SPDT Center Off Hi Off Low NOTE The pump is not polarity sensitive so either of the two lines can go to ground Fuel Pump Wiring Continental Installation Fig 27 F 2 High black A Primer switch SPDT MOM On Push button Red P N for 12V Pump 5455 00 1 Ref Elec boost pump Dukes Boost pump rocker switch SPDT Center Off Hi Off Low Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 VV Ly JD 27 10 REY 0 02 15 02 AANICAIR LEGACY 27 10 GENERAL WIRING G Trim System Wiring Wiring instructions are included with your trim systems The following diagrams suggest wire routing and plug locations You should be able to remove one servo alone or a control surface by unplugging the servo For wiring the T2 10A elevator trim servo refer to the wiring diagram that comes with the servo kit Elevator trim servo wiring We suggest running the wires through the elevator spar and inboard through the elevator access panel Then through the vertical sternpost and down to the bottom of the sternpost and forward through the aircraft Elevator and Rudder Trim Systems Fig 27 G 1 Install a grommet in the lea
20. t of the baggage bulkhead on the right side of the push pull tube You have been supplied with a premolded battery box mount that bonds to the fuselage side 1 Mount the battery box to the battery box mount before bonding the mount in place The battery box should mount as high as possible and be centered on the mount 2 Install the power grid to the battery box mount Power grid P N 737 L2K 14 Available through Lancair Avionics 3 Bond the battery box mount in place We suggest pre aligning the mount and using clecos to realign and hold in place during bonding The flat face where the battery mounts should be vertical Secure the power grid with Bolts AN3 10A 4 places Washers AN960 10 4 places Nutplates K1000 3 and Rivets MSC 32 4 places Trim the flange in front 1 x 3 x 3 8 phenolic spacer blocks These blocks are required to raise the power grid high enough to clear the nutplates The battery box mount P N 4038 bonds to the baggage bulkhead and the fuselage side Produce a lightening hole Also serves as an access hole should it be required Bolt AN3 5A 4 places Battery box available through Kit Components Washer AN960 10 4 place Nutplate K1000 3 4 places Rivet MSC 32 4 places 3 12 15 04 AJITA TE 274 Chapter27 27 REV 3 12 15 04 3 INCH LEGACY 274 GENERAL WIRING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 Ba
21. ttery Box Installation Fig 27 B 2 VIEW LOOKING FORWARD For dual battery box systems contact Lancair Avionics BATTERY DRAIN DETAIL Hydraulic Pump ___ Gear Down Switch PS Hose 193 4 950 Ref 2 Low Pressure Side Pon nnn ch ih bib Small Hose Clamp 145 0000 5324K Idler Ar a guia i Gear up Switch A Al eh ame ase f Put the 1 4 IS 1000 Ref Mount X aluminum tube in with epoxy flox Return Line ALPA ie 27 5 REV 6 08 10 07 ANCA LEGACY 27 5 NOLNING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond OR 97756 C Basic Aircraft Wiring Basic Aircraft Wiring Diagram This diagram shows a very basic aircraft system All other systems Fig 27 C 1 would branch off this system F2 This is an unshielded heavy gage wire EE inaa No shielded wire needed PUI oine MINN _ L 4 U N HY TTT T Noise suppressor Voltage Regulator ae ULE TH Aircraft Spruce See Mfg schematic for specific wiring 11 08060 W Starter Se Mag Mag mi hl Battery f a es a ee ee ee 9 L Cockpit 7 ground E 2 post Avionics Ammeter Iw jeg Master i ce Ignition switch L e SICAL 2 LEGACY GENERAL WIRING Lancair International Inc Represented by Neico Aviation Inc Copyright 2000 Redmond
22. wings will take you through this installation in a simple pictorial manner H2 Secure the wires so that they can not possibly get tangled up with any of the flap actuator movements H3 Before wiring the relay flap motor assembly it is important to first establish the proper polarity of the motor Or put another way you must determine which wire on the motor is when the actuator is extending By placing one of the motor leads on and one on on any handy 12V battery locate the correct combina tion that extends the actuator shaft Mark that appropriate wire for future reference This extension movement will act to bring the flaps UP Flap Motor Wiring Schematic Fig 27 H 1 at p IURE H4 Attach the limit switch assembly to the actuator shaft The final position will be determined later but for now just put the magnetic reed switches on opposite ends of the base bracket not all the way to the ends though The limit switch that is at the far end of the shaft away from the motor 1s the one that will limit the flaps UP position To Bus Bar switch _ a e H5 For the sake of discussion let s pick relay 2 as the one to be used for flaps UP The other relay will be used for flaps DOWN With this established the wire marked Limit Switch 2 is connected to that limit switch See figure 27 H 2 Also the wire on relay 2 marked to motor must be connected to the flap motor wire which was
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