(a)
P6 Main Power Distribution Panel
1) 6F1 IGN 1 ENG 1
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SEE A
SEE B
SEE D
FWD
DIFFUSER CASE FITTING DIFFUSER CASE A
155. TUBE NUT
SEE C 157. LEFT DIFFUSER 156. CLAMP TUBE SEAL AIR VENT
B ENGINES PRE-PW-SB 72-567 0886 L-A0200
Left Diffuser Seal Air Vent Tube Installation Figure 405 (Sheet 1)
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
158. NUT
BRACKET
159. BOLT
156. CLAMP
160.
BOLT
161.
BOLT
157. LEFT DIFFUSER
(2 LOCATIONS)
SEAL AIR VENT PT4.95 TUBE TUBE 171. NUT
C
162. BOLT
170. CLAMP
163. CLAMP
164. BOLT (2 LOCATIONS)
157. LEFT DIFFUSER SEAL AIR SHUTOFF
AIR VENT TUBE VALVE SIGNAL TUBE
168. BRACKET
169. NUT
165.
GASKET
166.
DEFLECTOR
FWD
167. GASKET
HPC REAR CASE PORT
D
L-A4270
ENGINES PRE-PW-SB 72-567
Left Diffuser Seal Air Vent Tube Installation
Figure 405 (Sheet 2)
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SEE A
SEE D
SEE B
SEE C
FWD
200. LOCK
201.
GASKET
202.
GASKET
L-A0200
203. LEFT DIFFUSER 0886
SEAL AIR VENT A
DIFFUSER CASE
TUBE
INTERNAL TUBE
LOCK
204. BOLT
0.000-0.020 INCH (0.000-0.508 mm)
FWD
209. NUT
208. VENT TUBE FOR
THE NO. 3 BEARING
206. BRACKET
207. CLAMP
205. BOLT
B
L-A8782 (0895)
ENGINES POST-PW-SB 72-567
Left Diffuser Seal Air Vent Tube Installation
Figure 405 (Sheet 3)
G85922
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
FUEL INJECTOR BRACKET
212. NUT
210.
CLAMP
211.
BOLT
203. LEFT DIFFUSER SEAL
AIR VENT TUBE
215. BOLT L-A8781 (0000)
C
216. NUT
214. CLAMP
217. CLAMP
218. BOLT
213. BOLT
226. AIR SHUTOFF VALVE SIGNAL 219. PT 4.95 TUBE TUBE 220. BOLT 225. NUT
224. BRACKET
203. LEFT DIFFUSER SEAL AIR
221. GASKET VENT TUBE
222. DEFLECTOR FWD 223. GASKET
D
ENGINES POST-PW-SB 72-567 L-9700 (0895)
Left Diffuser Seal Air Vent Tube Installation Figure 405 (Sheet 4)
G86999
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