ke 2 - HYDARULIC AND UTILITY SYSTEM - 177 HYDRAULIC SYSTEM...

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HYDRAULIC SYSTEM HYDRAULIC SYSTEM DAN UTILITY SYSTEM Hydraulic operation system dan utility system pada pesawat KT-1B terbagi menjadi : a) Hydraulic system b) Brake system c) Landing system d) Environmental control system e) Oxygen system HYDRAULIC SYSTEM Pada system ini dijelaskan bagaimana tenaga hydraulic dihasilkan dan menggerakkan komponen-komponen pada hydraulic system, komponen-komponen pada hydraulic system antara lain : 1. Hydraulic power generation system yang terdiri dari : a) Hydraulic pump b) Power pack assy 2. Hydraulic passage control system digunakan untuk mengontrol bermacam-macam aliran hydraulic, hydraulic passage control system terdiri dari selector manifold 3. Actuating unit terdiri dari : a) Nose L/G actuator b) Main L/G actuator c) Main L/G door actuator d) Flap actuator e) Speed brake actuator 4. Emergency control system dapat digunakan untuk mengoperasikan L/G, L/G inboard door dan flap pada saat emergency, emergency control system terdiri dari : 177
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a) Emergency accumulator b) Emergency L/G T-Handle c) Emergency accumulator dump T-Handle d) Emergency accumulator microswitch e) Emergency pressure gauge assembly Emergency control system dapat digunakan untuk mengoperasikan : a) Landing gear b) Landing gear inboard door dan c) Flap pada saat emergency 178
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Gambar komponen-komponen dari hydraulic system MAIN LANDING GEAR ACTUATOR SELECTOR MANIFOLD EMERGENCY ACCUMULATOR SPEED BRAKE ACTUATOR FLAP ACTUATOR MAIN LANDING GEAR ACTUATOR MAIN LANDING GEAR DOOR ACTUATOR NOSE LANDING GEAR ACTUATOR HYDRAULIC PUMP EMERGENCY GAUGE ASSEMBLY HYDRAULIC PRESSURE INDICATOR POWER PACK ASSEMBLY EMERGENCY SHUTOFF VALVE SAMPLING VALVE 179
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BRAKE SYSTEM Brake system terdiri dari : a) Dua buah pedal pada masing-masing cockpit b) Dua buah master cylinder c) Sebuah reservoir d) Sebuah parking brake T-Handle e) Dua buah relief valve f) Sebuah parking brake valve g) Sebuah brake assembly 180
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` ` Gambar komponen-komponen dari brake system BRAKE PEDAL MASTER CYLINDER RESERVOIR RELIEF VALVE WEAR INDICATOR PARKING BRAKE VALVE PARKING BRAKE T-HANDLE BRAKE ASSEMBLY RESERVOIR MASTER CYLINDER WEAR INDICATOR RELIEF VALVE
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LANDING GEAR SYSTEM Landing gear system mempunyai tiga roda pendarat yang dapat dilipat secara penuh (retractable) digerakkan secara hydraulic dan dikendalikan secara electrik, main L/G dilipat ke belakang kearah bagian dalam wing, sedangkan nose landing gear dilipat ke belakang kearah bagian dalam dari fuselage. Pada saat L/G up (retract) atau down (extend) maka pintu bagian dalam (inboard door) selalu dalam keadaan tertutup, emergency system terdiri dari emergency accumulator dan emergency T-handle yang digunakan saat pengoperasian landing gear system normal tidak berhasil dilakukan/gagal, dengan menarik tuas emergency L/G T-handle pada bagian samping kiri instrument panel cockpit depan, maka sistem akan mengalirkan cairan hydraulic dari emergency accumulator menuju ke nose dan main L/G actuator dan ke arah yang lebih rendah yaitu L/G, komponen dari L/G system terdiri dari : a) Nose L/G assy b) Main L/G assy c)
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