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WARNING : PRIOR TO ANY OPERATION, ENSURE THAT THE KEY IS REMOVED FROM MAGNETO SELECTOR AND THAT "MAIN SWITCH" IS OFF. IF AIRCRAFT IS EQUIPPED WITH DISCONNECT PLUG ON FIREWALL, DISCONNECT "MAGNETO DISCONNECT" PLUG AND CONNECT IT TO "GROUND MAGNETO FOR SERVICING" PLUG. WARNING : PRIOR TO ANY OPERATION, ENSURE THAT THE ENGINE, EXHAUST PIPE AND MANIFOLDS ARE COLD. IF NOT, TAKE NECESSARY PRECAUTIONS TO AVOID SEVERE BURNS. 1) Lubricate the seal of new filtering cartridge (1) with new engine oil. NOTE : Observe the installation instructions supplied with the filtering cartridge. 2) Install new filtering cartridge (1). Torque - refer to 20-00-01. 3) Lockwire filtering cartridge (1). 4) Make sure all the tools and materials are removed and the work area is clean and free from debris. 5) Install the engine cowlings - refer to 71-10-01. 6) Fill the oil system - refer to 12-12-01. 7) Check for leaks. 3. REMOVAL OF OIL FILTER (Figure 402) A. Tools and consumable materials None B. Procedure WARNING : PRIOR TO ANY OPERATION, ENSURE THAT THE KEY IS REMOVED FROM MAGNETO SELECTOR AND THAT "MAIN SWITCH" IS OFF. IF AIRCRAFT IS EQUIPPED WITH DISCONNECT PLUG ON FIREWALL, DISCONNECT "MAGNETO DISCONNECT" PLUG AND CONNECT IT TO "GROUND MAGNETO FOR SERVICING" PLUG. WARNING : PRIOR TO ANY OPERATION, ENSURE THAT THE ENGINE, EXHAUST PIPE AND MANIFOLDS ARE COLD. IF NOT, TAKE NECESSARY PRECAUTIONS TO AVOID SEVERE BURNS. 1) Remove the engine cowlings - refer to 71-10-01. 2) Drain the oil system - refer to 12-12-02. 3) Cut off and discard lockwire (4). 4) Remove shroud (1). 5) Remove filter (2) and discard the seals. CAUTION : CHECK FOR METAL PARTICLES IN THE INTERNAL FOLDS OF THE FILTER. THE PRESENCE OF METAL PARTICLES INDICATES ENGINE DAMAGE. 6) Check for metal particles in the internal folds of filter (2). a) Open filter (2). ACAC Validity : S / N 1 - 9999 79 2002 Page (DA) SEP 402 b) Check the condition of the oil at the outlet of filter (2). Check for metal particle contamination. c) Remove the paper filter from the filter. d) Carefully unfold the paper filter and examine the deposits inside. NOTE : If an abnormal quantity of metal particles is detected during filter inspection, TEXTRON LYCOMING recommends a spectrograph oil analysis to monitor engine component wear rates. Refer to Service Bulletin No. 480 at the latest edition. 4. INSTALLATION OF OIL FILTER (Figure 402) A. Tools and consumable materials - Stainless steel lockwire, dia. 0.032 in (0.8 mm) - Torque wrench 0 to 265 lbf.in (0 to 30 N.m) B. Procedure WARNING : PRIOR TO ANY OPERATION, ENSURE THAT THE KEY IS REMOVED FROM MAGNETO SELECTOR AND THAT "MAIN SWITCH" IS OFF. 中国通航网 www.ga.cn 通航翻译 www.aviation.cn 本文链接地址：TB20 MAINTENANCE MANUAL 79 润滑 TB20飞机维护手册(13) |
