Chapter 28 Fuel - Extra Aircraft
Contents
1. Inspection door Lever type Tank Unit Wing Tank Removal Installation Figure 12 Stripping solvents can be toxic and volatile Use only in well ventilated areas Avoid physical contact with sol vent and do not inhale vapors Keep solvent containers covered when not in use 5 Clean sealing surfaces mechanically and with Acetone 6 Install in reverse sequence of removal after applying 3M Brand Fuel Resistant Coating 776 3M St Paul PAGE DATE 1 July 1996 CHAPTER 28 PAGE 26 EXTRA FLUGZEUGBAU GmbH MAINTENANCE PRACTICES SERVICE MANUAL EXTRA 200 USA for sealing to both sides of the sealing ring and the grooves inside the tank 28 41 05 Float Wire Adjustment 1 Remove the lever type tank unit per Chapter 28 41 04 2 Remove the float wire and bend it in form like shown in the following Figure 13 20mm 10871 I 125mm 15071 60mm Float Wire Adjustment Figure 13 3 Reinstall the float wire observing the distances shown in Figure 14 pay attention to a proper alignment and tighten well the attachment bolt wing tank 5 Z nd N 82mm 3 2 _ 4 7 e Float Wire Installation Figure 14 4 Reinstall the lever type tank unit per Chapter 28 41 04 PAGE DATE 1 July 1996 CHAPTER2. 5 TN NO t I Fuel System Figure 1 CHAPTER 28 PAGE PAGE DATE 1 July 1996 4 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 28 01 00 28 01 01 28 01 02 MAINTENANCE PRACTICES Refueling Defueling Refer to Chapter 12 for detailed refueling defueling proce dures Reduction of Fuel Tank Vapor Hazards General Precautions During all ventilation or maintenance procedures involving the fuel system observe the following general precautions 1 should be outdoors with the aircraft at least 100 feet from hangars or other aircraft No smoking should be allowed within 100 feet of the aircraft Suitable fire fighting equipment should be available Foam or soda type extinguishing agents are recom mended Ground the aircraft to prevent static electricity from causing sparks If a ramp ground is available it should be connected to exhaust stack If a ramp ground is not provided a temporary ground can be obtained by driv ing a metal rod into the ground and attaching a ground wire between the rod and the aircraft exhaust stack Flame and spark producing equipment should not be operated within 100 feet of the aircraft The aircraft should have its battery removed Only personnel working on the aircraft should be al lowed in the immediate area and no other maintenance should be performed while the tanks are being worked on
3. JOYUOI APPIN gt yoq pue Zun Sunsnfpy o yuoo 11014 O oNUOD Sj Oq MOIOS o pueu OUD Sj Oq DACA 10 02 96 TN lt AJLA 10399128 I 8 7 V melad 18 28 Fuel Selector Valve and Control Rod Figure 8 PAGE DATE 1 July 1996 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 MAINTENANCE PRACTICES 28 21 03 Gascolator Removal Installation 1 Drain the fuel system per Chapter 12 10 02 Disconnect the fuel lines on the gascolator Loosen the knurled nut 1 Figure 9 Remove the mounting bracket 2 Remove the fuel reservoir 3 and the sealing ring 4 Remove the strainer 5 and the gascolator cover 6 OQ tA A 92 N Install in reverse sequence of removal 559555055559 ES RRS ROKK ROKK ER Dp p 8 Ke Gascolator Removal Installation Figure 9 PAGE DATE 1 July 1996 CHAPTER 28 PAGE 19 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 MAINTENANCE PRACTICES 28 21 04 Electrical Boost Pump Removal Installation 1 Drain the fuel system per Chapter 12 10 02 2 Disconnect the plug and the fuel lines on the
4. When a fuel tank is opened for repair air ventilation refer to following Page should be started immedi ately to reduce vapor concentrations PAGE DATE 1 July 1996 CHAPTER 28 PAGE 5 EXTRA FLUGZEUGBAU GmbH MAINTENANCE PRACTICES SERVICE MANUAL EXTRA 200 Reduction of Fuel Tank Vapor Hazards 9 When draining fuel ensure that suitable containers are available and that drained fuel is stored safely Do not allow fuel to drip to the ground and form pools 10 Ifit is necessary to ventilate a tank when the aircraft is in hangar ensure that vapors do not accumulate to ex plosive or toxic levels in the hangar WARNING When fuel is being drained there is little control over the release of fuel vapor This vapor should be dissi pated as quickly as possible Compressed air or explo sion proof blowers may be used for the purpose Air Ventilation 1 Completely drain the fuel system per Chapter 12 10 02 2 Remove inspection doors refer to Chapter 28 11 03 and tank caps 3 Use compressed air or an explosion proof blower to blow air into the tank until tank interior is dry and free of vapor 4 Continue ventilation whenever tank is open and being worked on WARNING If flammable vapors from cleaning solvents are allowed in the tank increase air circulation to dissipate them PAGE DATE 1 July 1996 CHAPTER 28 PAGE 6 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 28 10 00 STORAGE The EXTRA 200
5. 28 PAGE 27 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 MAINTENANCE PRACTICES Acro tank to main landing gear spring connection a Center tank to main landing gear spring connection b Wing tank to wing tank connection inside wing tank 4 wing tank inspection door Tee fitting to main landing gear spring connection d ERN Fittings and washers 1 AN 2 gt gt gt d 2 Jg 25 gt d rg 25 gt d 4 rg 22 gt d 2 gt N Tubes 816 4D PN PC 00159 818 40 00161 N818 6D PC 00160 819 40 00860 819 60 00162 824 60 00168 832 60 00170 1894 6 4D PC 00154 924 6D PC 00177 960 C916 PC 01852 822 4D PC 00155 30 strainer tube 31 32 33 PN PC 63202 2 alu tube 5052 0 03 8 inch PC 00122 u tube 5052 0 21 4 inch PN al PN PN PC 00123 vinyl tubing PC 01607 Ventilation lines Figure 6A PAGE DATE 1 July 1996 CHAPTER 28 PAGE 14A EXTRA FLUGZEUGBAU GmbH MAINTENANCE PRACTICES SERVICE MANUAL EXTRA 200 Acro tank to selector valve connection A 4 Ka N PC 00149 N491 6D N PC 00150 N816 4D N PC 00159 N818 4D N PC 00161 N818 6D N PC 00160 N819 4D N 00860 N819 6D N PC 00162 N
6. If the indication is inexact the float wire of the tank unit has to be adjusted refer to Chapter 28 41 05 PAGE DATE 1 July 1996 CHAPTER 28 PAGE 22 EXTRA FLUGZEUGBAU GmbH INDICATING SERVICE MANUAL EXTRA 200 aT E N A 77 ad lt E 2 E 4 Nn T 5 8 2 6520 8 amp 8 S m pud ie E 584 8 TB 252 558 9 0 Indicating Figure 11 PAGE DATE 1 July 1996 CHAPTER 28 PAGE 23 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 28 41 00 MAINTENANCE PRACTICES 28 41 01 Fuel Quantity Indicator Removal Installation 1 Disconnect battery on 2 Loosen the nuts remove the mounting bracket and remove the fuel quantity indicator 3 Disconnect the wiring the lamp is not used 4 Install in reverse se quence of removal ob serving the wiring dia gram PAGE DATE 1 July 1996 CHAPTER 28 PAGE 24 EXTRA FLUGZEUGBAU GmbH MAINTENANCE PRACTICES SERVICE MANUAL EXTRA 200 28 41 02 Fuel Quantity Indicator Calibration Center Tank 1 Drain the fuel system refer to Chapter 12 10 02 2 Remove the fuel quantity indicator following step 2 of Chapter 28 41 01 3 Bring indicator to position by turning the ENS adjustment screw 4 Reinstall the fuel quantity indicator 28 41 03 Tubular Tank Unit Center Tank Removal I
7. SERVICE MANUAL EXTRA 200 Fittings and washers 2 AN491 6D led RES Wing tank drain assembly drain line F gt N816 4D PC 00159 816 6D PC 00158 818 4D PC 00161 819 4D PC 00860 822 6D PC 00164 822 6D PC 00164 833 6D PC 00172 837 6D PC 02858 912 9D PC 00176 916 1D PC 00180 N924 6D PC 00177 ring MS29512 06 01270 22 2227 11 2 5 2 17 20 2227 2 2 2 i LE Gascolator drain assembly 24 12297 9 Hoses am BR 31 AEROQUIP 303 6 21 ZZ 22 ZZ eee d PN PC 00403 Tubes Gascolator to boost pump connection I 40 alu tube 5052 0 01 4 inch PN PC 00123 20 2 Valves 50 drain valve AY PN PC 01211 SS Refer to Ch 20 10 07 Fuel Lines Airframe Department Figure 10A Sheet 2 PAGE DATE 1 July 1996 CHAPTER 28 PAGE 21B
8. connect the particular components of the fuel system From Serial No 25 the drain line K has been added In addition to the engine driven fuel pump 4 an electrically driven auxiliary pump 5 having sufficient capacity to feed the engine at take off power is fitted as a safety device against failure of the engine driven pump The auxiliary pump switch circuit breaker is located on the rear instru ment panel A gascolator 6 is installed between the fuel selector valve and the auxiliary fuel pump at the firewall engine side A fuel selector valve of an Allen 65122 type 1 is located at the right side of the front cockpit behind the main spar on a separate support A control rod connects the selector valve to the control handles 2 The fuel selector valve is marked by the letters WT Wing Tank E Engine and CT Center Tank to ensure correct installation of fuel lines Refer to Detail A of Figure 8 The two tank systems are equipped with separate drain lines Drains 3 are located at the gascolator and the left and right side of the bottom fuselage PAGE DATE 15 December 1999 CHAPTER 28 PAGE 15 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 DISTRIBUTION Rear Instrument Panel OSS 5 QN 33 Firewall Legend Fuel selector valve 1 2 3 Control rod and handles Drain Engine driven rotary pump 4 5 6 Fuel lines Electric driven aux pump Gas
9. 0 28 11 04 Wing Tank Outlets Removal Installation 1 Remove the inspection door 1 refer to Figure 5 per Chapter 28 11 04 2 Remove the union nuts 2 and the elbow tubes 3 3 Remove AN 924 nut and washers and remove AN 832 fitting WARNING Stripping solvents can be toxic and volatile Use only in well ventilated areas Avoid physical contact with sol vent and do not inhale vapors Keep solvent containers covered when not in use 4 Clean sealing surfaces mechanically and with Acetone 5 Install in reverse sequence of removal after applying 3M Brand Fuel Resistant Coating 776 3M St Paul USA to the sealing surfaces fitting to tank root rib Ensure that the outlet end positions are in the upper resp undermost edge of the wing tank see Figure 7 below View from inside the wing Wing Tank Outlets Removal Installation Figure 5 PAGE DATE 15 December 1999 CHAPTER 28 PAGE 12 EXTRA FLUGZEUGBAU GmbH MAINTENANCE PRACTICES SERVICE MANUAL EXTRA 200 28 11 05 Center Tank Filler Neck Removal Installation 1 Remove the main fuselage cover per Chapter 51 2 Completely drain the fuel system per Chapter 12 3 Loosen the lower hose clip 4 Remove the filler neck 5 Install in reverse sequence of removal 28 11 06 Wing Tank Filler Neck Removal Installation Completely drain the fuel system per Chapter 12 2 Remove wing tank inspection door per Chapter 28 11 03 3 Unscrew fill
10. 821 4D N PC 02630 N821 6D N PC 02631 N822 6D N PC 00164 N823 6D N PC 00166 N832 4D N PC 00171 N832 6D N PC 00170 N834 4D N PC 01644 N834 6D N PC 00991 N916 1D 00180 N924 4D PC 00178 N924 6D 00177 N960C 716 00810 N960 C916 N PC 01852 27 O ring MS29512 06 PN PC 01270 28 O ring MS29512 04 PN PC 02632 d 2 ES 4 d v Acro center tank drain B 8 27 Meat a Pow Ta 3 T gt 12 9 gt 13 y Wing tank to Tee fitting connection C 15 5 gt inside wing tank 4 10 tank inspection door 16 gt 18 v 19 5 gt 22 gt 23 v 24 E 3 go E o on c o lt lt o 5 3 o 3 gt 25 26 Hoses 30 AEROQUIP 303 4 PN PC 00402 Wing tank to Tee fitting connection drain line E 31 AEROQUIP 303 6 PN PC 00403 Tubes 40 alu tube 5052 0 21 4 inch PN PC 00123 42 strainer tube PN PC 64202 4 43 strainer tube PN PC 64202 2 inside tank 4 wing tank T door Valves 50 drain valve Refer to Ch 20 10 07 PN PC 01211 Fuel Lines Airframe Department Figure 10A Sheet 1 PAGE DATE 1 July 1996 CHAPTER 28 PAGE 21A EXTRA FLUGZEUGBAU GmbH MAINTENANCE PRACTICES
11. EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 Chapter 28 Fuel PAGE DATE 1 July 1996 CHAPTER 28 PAGE 1 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 Chapter 28 00 00 28 01 00 28 01 01 28 01 02 28 10 00 28 11 00 28 11 01 28 11 02 28 11 03 28 11 04 28 11 05 28 11 06 28 11 07 28 11 08 28 20 00 28 21 00 28 21 01 28 21 02 28 21 03 28 21 04 28 21 05 28 40 00 28 41 00 28 41 01 28 41 02 28 41 03 28 41 04 28 41 05 TABLE OF CONTENTS Title GENERALE naa ag emg 3 MAINTENANCE PRACTICES 5 Refueling 2 5 Reduction of Fuel Tank Vapor Hazards 5 STORAGE enn 7 MAINTENANCE PRACTICES 9 Center and Acro Tank Removal Installation 9 Acro Tank Flop Tube Removal Installation 10 Wing Tank Inspection Door Removal Installation 11 Wing Tank Outlets Removal Installation 12 Center Tank Filler Neck Removal Installation 13 Wing Tank Filler Neck Removal Installation 13 Filler Neck Sealing Lip Replacement 14 Ventilation Line Replacement 14 DISTRIBUTION 2 15 MAINTENANCE PRACTICES 17 Fuel Selector Valve Removal Installation 17 Fuel Selector Valve Control Rod Re moyal Installattofr notar Roc t e 17 Gascolator Removal Installation 19 Electrical Boost Pump Removal Installation 20 Fuel Line Replacement eite r
12. TER 28 PAGE 7 EXTRA FLUGZEUGBAU GmbH STORAGE SERVICE MANUAL EXTRA 200 5 gt 3 E 5 9 g NE 424 8 T 3 488835 28585 Q 3 ng De m E gt E NM TN J 1 Storage Figure 2 PAGE DATE 1 July 1996 CHAPTER 28 PAGE 8 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 28 11 00 MAINTENANCE PRACTICES 28 11 01 Center and Acro Tank Removal Installation 1 Remove the main fuselage cover refer to Chapter 51 2 Drain the fuel system per Chapter 12 10 02 3 Loosen the electrical facilities and remove hose fix tures 4 Loosen and remove the metal attachment belts with the rubber stripes 5 Remove the center acro tank to the top 6 Install in reverse sequence of removal PAGE DATE 1 July 1996 CHAPTER 28 PAGE 9 EXTRA FLUGZEUGBAU GmbH MAINTENANCE PRACTICES SERVICE MANUAL EXTRA 200 28 11 02 Acro Tank Flop Tube Removal Installation 1 Drain the fuel system per Chapter 12 10 02 2 Disconnect the hose 5 Figure 3 and the elbow fitting 4 3 Loosen the flop tube fitting 3 and take the flop tube assembly 2 out of the acro tank 1 WARNING Stripping solvents can be toxic and volatile Use only in well ventilated areas Avoid physical contact with sol vent and do not inhale vapors Keep solvent containers covered when not in use 4 Clean the sealing surfaces mechanically and with Acetone NOTE If the flop tube assembly has to be
13. boost pump 3 Loosen the clamping device screws 1 Figure 10 4 Remove the boost pump 2 5 Install in reverse sequence of removal Boost Pump Removal Installation Figure 10 PAGE DATE 1 July 1996 CHAPTER 28 PAGE 20 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 MAINTENANCE PRACTICES 28 21 05 IMPORTANT NOTE Fuel Line Replacement Refer to Figure 10A The letters A J refer to the markings of Figure 7 General information concerning hoses and fittings you find in Chapter 20 If replacement of fuel lines passing the firewall is neces sary renew the sealing of the rubber grommet grooves and gaps at the engine side of the firewall Use PRC 812 Products Research amp Chemical Corporation USA firewall sealant Cover the fuel lines of the engine de partment with AEROQUIP AE102 fire sleeves as per Chapter 20 10 07 Use only tubes and fittings as listed in the following PAGE DATE 1 July 1996 CHAPTER 28 PAGE 21 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 28 40 00 INDICATING Refer to Figure 11 For fuel contents indicating the center tank is equipped with a tubular tank unit 1 and the left wing tank with a lever type tank unit 2 They transmit the fuel levels to the respective fuel quantity indicators at the instrument panel 3 In contrast to the fuel quantity indica tor of the center tank the one in the wing tank is not adjustable
14. colator Distribution Figure 7 PAGE DATE 15 December 1999 CHAPTER 28 PAGE 16 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 28 21 00 MAINTENANCE PRACTICES 28 21 01 Fuel Selector Valve Removal Installation 1 Drain the fuel system per Chapter 12 10 02 NH tn A W N Disconnect the fuel lines on the selector valve Remove the control rod attachment bolts 5 Figure 8 Remove the selector valve attachment bolts 2 Remove the selector valve 1 Install in reverse sequence of removal Use LOCTITE when installing the selector valve attachment bolts 28 21 02 Fuel Selector Valve Control Rod Removal Installation A UQ N Remove the rear control rod connection bolt 11 Fig ure 8 Remove the rear control rod 12 to the rear Loosen the bolt of the adjusting ring 8 Remove the front control rod connection bolt 7 Remove the middle control rod 10 the adjusting ring 8 and the spring 9 to the rear Remove the control rod attachment bolts 5 Remove the front control rod 6 Install in reverse sequence of removal Consider that the position of the adjusting ring shall give the spring enough tension to move the control rod into the fore most position after having tied back PAGE DATE 1 July 1996 CHAPTER 28 PAGE 17 MAINTENANCE PRACTICES EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 C1 273 o guoo IRAN yoq
15. er neck lock ring 4 Figure 6 with seal ing lip 5 using a tool as shown in Figure 6 4 Remove filler neck 3 with filler cap 1 and O ring 2 WARNING Stripping solvents can be toxic and volatile Use only in well ventilated areas Avoid physical contact with sol vent and do not inhale vapors Keep solvent containers covered when not in use 5 Clean all sealing surfaces with Acetone 6 Install in reverse sequence of removal after applying 3M Brand Fuel Resistant Coating 776 3M St Paul USA to the sealing surfaces wing filler neck PAGE DATE 1 July 1996 CHAPTER 28 PAGE 13 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 MAINTENANCE PRACTICES Filler Neck Sealing Lip Replacement 28 11 07 28 11 08 NOTE Filler Neck Sealing Lip Replacement 1 Carefully drill out the body bound rivets 7 Figure 6 2 Install the new sealing lip driving in new washers 6 and body bound rivets Filler Neck and Sealing Lip Removal Installation Figure 6 Ventilation Line Replacement Refer to Figure 6A Small letters a c refer to the marks of Figure 2 General information concerning hoses and fittings you find in Chapter 20 Use only tubes and fittings as listed in the following PAGE DATE 1 July 1996 CHAPTER 28 PAGE 14 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 28 20 00 DISTRIBUTION Refer to Figure 7 Flexible hoses and aluminium tubes A J
16. etos nn 21 INDICATING Ge Ga Ge 22 MAINTENANCE PRACTICES 24 Fuel Quantity Indicator Removal Installation 24 Fuel Quantity Indicator Calibration Center Tank 25 Tubular Tank Unit Center Tank Removal Installation 25 Lever type Tank Unit Wing Tank Remowval Installation 26 Float Wire Adjustments aana 27 PAGE 1 July 1996 28 PAGE 2 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 28 00 00 GENERAL The fuel system refer to Figure 1 consists ofa center tank 3 with acro tank 5 two wing tanks 1 a fuel selector valve 2 a gascolator 8 an electrically driven auxiliary pump 7 andan engine drivenrotary pump 6 Concerning the fuel drains 4 also refer to Chapter 12 10 03 On the rear instrument panel one fuel quantity indicator for the center tank and one for the wing tanks the switch circuit breaker for the boost pump and the circuit breaker for the indication are installed For fuel tank capacities refer to Chapter 12 10 01 PAGE DATE 1 July 1996 CHAPTER 28 PAGE 3 GENERAL EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 Joyejooseyy xne uoAup oursuq yur yur DATA 10199199 Xue Sur 7 1 1
17. is equipped with two independent fuel systems The center and acro tank system and the wing tank system The acro tank 1 Figure 2 incorporating an inverted flight fuel supply system is connected to the center tank 2 which is mounted in front of the main spar Fueling the center and acro tank is by means of the fuselage 2 diameter filler cap 5 For leak detection the center and acro tank are furnished with a GRP tank shell In case of leakage blue colored fuel is shining through The center acro tank is grounded The center and acro tank deaerate by ventilation tubes a b ending at the right side of the main landing gear spring The root section of each wing in front of the main spars forms an integral fuel tank of approximately 100 cm 39 length 4 Each wing tank has a 2 diameter filler cap 5 for gravity fueling Sealing lips are installed at the filler necks inside the wingtank For sealing 3M Brand Fuel Resistant Coating 776 3M St Paul USA has been ap plied to the inside ofthe wing tanks For lightning protec tion reason the shell in the area of the wing tank has an outer layer of carbon fiber with incorporated aluminium thread 3 The wing tanks are grounded Each tank is provided with an alu ventilation tube c for adequate venting The ventilation tubes are interconnected to a main tube d ending outside of the fuselage at the right side of the main landing gear spring PAGE DATE 1 July 1996 CHAP
18. nstallation Drain the fuel system per Chapter 12 10 02 2 Loosen one bolt and re place by a M5 threaded rod 1 for securing the slotted retainer ring 2 Remove the other bolts LAN Y and the ground bonding lead 3 4 Lifttubular tank unit and sealing ring over the threaded rod mmm 111 I Remove the threaded rod and turn out the slotted retainer ring 2 CY CA WARNING Stripping solvents can be toxic and volatile Use only in well ventilated areas Avoid physical contact with sol vent and do not inhale vapors Keep solvent containers covered when not in use PAGE DATE 1 July 1996 CHAPTER 28 PAGE 25 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 MAINTENANCE PRACTICES 28 41 04 WARNING 6 Clean sealing surfaces mechanically and with Acetone 7 Install in reverse sequence of removal after applying 3M Brand Fuel Resistant Coating 776 3M St Paul USA for sealing to both sides of the sealing ring Lever type Tank Unit Wing Tank Removal Installation 1 Disconnect the electrical wiring 2 Remove LH inspection door refer to Chapter 28 11 03 3 Remove tank unit bolts 1 Figure 12 4 Remove the retainer ring 3 the tank unit 4 and the sealing ring 2 ae
19. replaced install a complete new assembly 5 Install in reverse sequence of removal after applying Loctite 577 to the flop tube fitting thread Flop Tube Removal Installation Figure 3 PAGE DATE 15 December 1999 CHAPTER 28 PAGE 10 EXTRA FLUGZEUGBAU GmbH SERVICE MANUAL EXTRA 200 MAINTENANCE PRACTICES 28 11 03 WARNING Wing Tank Inspection Door Removal Installation 1 Drain the fuel system per Chapter 12 10 02 2 Disconnect the ground bonding leads and if necessary LH wing tank the electrical wiring of the lever type tank unit 3 Figure 4 3 Remove the inspection door bolts 4 Remove the inspection door flange 1 5 Push the inspection door 2 into the tank then turn and remove Stripping solvents can be toxic and volatile Use only in well ventilated areas Avoid physical contact with sol vent and do not inhale vapors Keep solvent containers covered when not in use 6 Clean the sealing surfaces mechanically and with Acetone 7 Install in reverse sequence of removal after applying 3M Brand Fuel Resistant Coating 776 3M St Paul USA to the sealing surfaces inspection door and tank root rib wing tank tank root rib SE NG bA Ps RU Inspection Door Removal Installation Figure 4 PAGE DATE 1 July 1996 CHAPTER 28 PAGE 11 EXTRA FLUGZEUGBAU GmbH MAINTENANCE PRACTICES SERVICE MANUAL EXTRA 20
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