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- upper pipe (35) connecting tee union (3) and tee union (21). Under cowlings under hull 218F and 218A and inspection doors 217L. 217R and 238 - hose (10) connecting R.H. main landing gear actuating cylinder (9) and 90° elbow (13), - hose (31) connecting L.H. main landing gear actuating cylinder (32) and 90° elbow (28), - hose (11) connecting R.N. main landing gear actuating cylinder (9) and union (12), - hose (30) connecting L.H. main landing gear actuating cylinder (32) and union (29), - pipe (14) connecting 90° elbow (13) and tee union (15), - pipe (27) connecting 90° elbow (28) and tee union (15), - pipe (34) connecting union (12) and tee union (33), - pipe (26) connecting union (29) and tee union (33), - pipe (16) connecting tee union (15) and tee union (17), - pipe (25) connecting tee union (33) and tee union (21), - pipe (18) connecting tee union (17) and pressure switch (19), - pipe (20) connecting pressure switch (19) and 45° elbow (23), - pipe (22) connecting tee union (21) and 45° elbow (23). C. Replacement of a landing gear hydraulic system pipe or hose 1) Jack up the aircraft - refer to 07-10-00. 2) Drain the landing gear hydraulic system - refer to 12-13-04. 1 - Landing gear emergency pipe 2 - Landing gear emergency pipe 3 - Tee union 4 - Hose 5 - Hose 6 - Nose landing gear actuating cylinder 7 - Tee union 8 - Upper pipe 9 - R.H. main landing gear actuating cylinder 10 - Hose 11 - Hose 12 - Union 13 - 90° elbow 14 - Pipe 15 - Tee union 16 - Pipe 17 - Tee union 18 - Pipe 19 - Pressure switch 20 - Pipe 21 - Tee union 22 - Pipe 23 - 45° elbow 24 - Electrohydraulic generator 25 - Pipe 26 - Pipe 27 - Pipe 28 - 90° elbow 29 - Union 30 - Hose 31 - Hose 32 - L.H. main landing gear actuating cylinder 33 - Tee union 34 - Pipe 35 - Upper pipe 36 - Valve Landing gear hydraulic system pipes and hoses - Removal / Installation Key to Figure 201 Landing gear hydraulic system pipes and hoses - Removal / Installation Figure 201 3) To gain access to the pipe (hose) to be replaced, remove the cowlings and / or inspection doors as necessary - refer to Paragraph B. 4) Remove the pipe (hose) and blank off. 5) Remove the blanking plugs and install the new pipe (hose) - refer to 20-00-02. 6) Replenish the landing gear hydraulic system - refer to 12-13-03. WARNING : BEFORE ANY LANDING GEAR RETRACTION OR "NORMAL" OR "EMERGENCY" EXTENSION PROCEDURE, AND / OR LANDING GEAR CIRCUIT-BREAKER CLOSING, MAKE SURE THAT THE LANDING GEAR IMMEDIATE SURROUNDINGS ARE CLEAR (PERSONS OR THINGS). 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(71) |
