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TB20 MAINTENANCE MANUAL 79 润滑 TB20飞机维护手册(11)

时间:2011-11-15 10:21来源:蓝天飞行翻译 作者:航空
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1) Remove the engine cowlings - refer to 71-10-01.
2) Drain the oil system - refer to 12-12-02.
3) Remove the standard oil cooler - refer to Paragraph 1.
4) Hold elbows (3) using a thin spanner, disconnect hose (8) and remove hose (4). Blank off.
AEAC
Validity : Post-MOD. 131 or Kit OPT10 923500 79-20-01 (,)m) Page 402
SEP 02
 
5) Hold cooler (1) and remove four nuts (5), washers (7), spacers (10) and threaded rods (6). Discard nuts (5).
6) Remove cooler (1).
7) Hold unions (2) using a thin spanner to remove, if necessary, elbows (3) from oil cooler. Blank off.
8) Hold ends (9) using a thin spanner to remove, if necessary, unions (2) from oil cooler. Blank off. 4. INSTALLATION OF OPTIONAL OIL COOLER (Figure 401A)
A. Tools and consumable materials
- Loctite (TB 09-906)
- Cleaning agent (TB 11-003)
- Red paint
- Oil (TB 03-902)
- Clean lint-free cloths
- Torque wrench 0 to 450 lbf.in (0 to 50 N.m)
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 blanking caps.
2) Remove loctite from cooler (1) ports. Rinse the latter with cleaning agent (TB 11-003) and dry it.
3) Position cooler on engine bulkhead (11) and secure it with the four threaded rods (6), washers (7), spacers (10) and new nuts (5).
4) If removed, install unions (2).
a) Clean and degrease unions (2) and coat thread with loctite (TB 09-906).
b) Position unions (2) on cooler (1), hand-tighten up to contact.
c) Hold ends (9) using a thin spanner and tighten unions (2).
5) If removed, install elbows (3).
a) Lubricate elbows (3) threads with oil (TB 03-902).
b) Position elbows (3) on cooler (1), hand-tighten up to contact.
c) Hold unions (2) using a thin spanner and tighten elbows (3).
NOTE : Orientate lower elbow (3) 10° downwards so that hose (8) does not come into contact with the engine mount.
AEAC
Validity : Post-MOD. 131 or Kit OPT10 923500 79-20-01 (DM) Page 403
SEP 02
 
6) Hold elbows (3) using a thin spanner to avoid any distortion of cooler (1) fins - see Details A and B, when tightening hoses (4) and (8) on elbows. Torque - refer to 20-00-01.
7) Mark ends (9), unions (2), elbows (3) and hoses (4) and (8) with a red paint line.
8) Install the standard oil cooler- refer to Paragraph 2.
9) Install the engine cowlings - refer to 71-10-01.
 
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