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6 - Protection valve 7 - Check valve 8 - Shuttle valve 9 - Spool valve 10 - Pump 11 - Low pressure valve 12 - Air intake 13 - Filter 14 - Motor shaft 15 - L.H. main gear actuator 16 - Emergency valve control 17 - Configuration and control panel 18 - Emergency valve Extension and retraction - Landing gear system during extension Key to Figure 4 Extension and retraction - Landing gear system during extension Figure 4 1 - Nose gear actuator 2 - R.H. main gear actuator 3 - Pressure switch 4 - Reservoir 5 - High pressure valve 6 - Protection valve 7 - Check valve 8 - Shuttle valve 9 - Spool valve 10 - Pump 11 - Low pressure valve 12 - Air intake 13 - Filter 14 - Motor shaft 15 - L.H. main gear actuator 16 - Emergency valve control 17 - Configuration and control panel 18 - Emergency valve Extension and retraction - Landing gear system in "extended and locked" position Key to Figure 5 Extension and retraction - Landing gear system in "extended and locked" position Figure 5 I AAAA Validity : Electrohydraulic generator "PRESTOLITE" 32-30-00 (AM) Page 13 JUN 02 1 - Nose gear actuator 2 - R.H. main gear actuator 3 - Pressure switch 4 - Reservoir 5 - High pressure valve 6 - Protection valve 7 - Check valve 8 - Shuttle valve 9 - Spool valve 10 - Pump 11 - Low pressure valve 12 - Air intake 13 - Filter 14 - Motor shaft 15 - L.H. main gear actuator 16 - Emergency valve control 17 - Configuration and control panel 18 - Emergency valve Extension and retraction - Landing gear system "emergency extension" Key to Figure 6 Extension and retraction - Landing gear system "emergency extension" Figure 6 Ity 7AA Validity Electrohydraulic generator "PRESTOLITE" 32 30 00 (AM) JUN 0125 PAGE INTENTIONALLY LEFT BLANK I AAAA Validity : Electrohydraulic generator "PRESTOLITE" 32-30-00Page 16 (AnA) JUN 02 EXTENSION AND RETRACTION DESCRIPTION AND OPERATION 1. GENERAL The landing gear maneuver system includes the following elements : - main landing gear actuating cylinder, - nose landing gear actuating cylinder, - main landing gear hinged strut, - nose landing gear hinged strut, - main landing gear compensating spring, - nose landing gear compensating actuator, - end of travel microswitch. 2. LOCATION COMPONENT QTY AREA ACCESS DOOR REFERENCE 中国通航网 www.ga.cn 通航翻译 www.aviation.cn 本文链接地址：TB20 MAINTENANCE MANUAL 32 起落架 TB20飞机维护手册(41) |
