747-400 AMM 飞机维护手册滑油 OIL(56)_航空信息_民用航空_通用航空

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
b) Attach cover (18) to housing (1) with four washers(12) and nuts (14) . c) Tighten the nuts (14) to 150-170 pound-inches (16.948-19.207 newton-meters).
2) If hex nuts (14) with lockwire provisions are used: a) Lubricate housing studs with engine oil. b) Attach cover (18) to housing (1) with four washers (12)
and nuts (14). c) Tighten the nuts (14) to 125-150 pound-inches (14.123-16.948 newton-meters). d) Attach the lockwire or safety cable and safety cable ferrule to the nuts (14).
S 424-065-N00
(6)
Install new packing (7), lubricated with engine oil, on insert (8).

S 424-066-N00

(7)
Install insert (8), lubricated with engine oil, in opening in bottom of cover (13, 18).

(a)
Tighten the insert (8) to 200-225 pound-inches (22.597-25.422 newton-meters).

S 424-067-N00
(8)
Install new packing (9), lubricated with engine oil, on plug (10).

S 424-068-N00

(9)
Install plug (10), lubricated with engine oil, into insert (8).

(a)
Tighten the plug (10) to 110-120 pound-inches (12.428-13.558
newton-meters).

(b)
Attach the lockwire or safety cable and safety cable ferrule to plug (10).

S 024-069-N00
(10)
ENGINES WITH PW SB 72-525; do the steps that follow (Fig. 401, View G):

(a)
Install pressure relief valve (21) in center of cover (13).

(b)
Attach retaining ring (20) to pressure relief valve (21).

(d)
Remove the protective closure from the end of the filter
element (19).

(e)
Install the filter element (19) over the pressure relief valve (21) in cover (13). 1) Align bolt holes and dowel pin in cover (13) with studs and

dowel pin hole in main oil filter housing (1), then install cover with filter element (19) into main oil filter housing.
NOTE: The removable plug in the outboard end cap of
____ the filter must be removed before you install the filter element into the cover.
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79-21-05
ALL ú ú N02 Page 416 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
CAUTION:_______ MAKE SURE YOU INSTALL THIS PART CORRECTLY. IF YOU DO NOT
INSTALL THE PART CORRECTLY, AN INFLIGHT ENGINE SHUTDOWN
CAN OCCUR.
CAUTION:_______ MAKE SURE YOU INSTALL THE COVER CORRECTLY. DO NOT USE THE
COVER RETAINING NUTS TO PULL COVER INTO THE HOUSING. YOU

CAN CAUSE DAMAGE TO THE PACKING.
(f) With the cover (13) in position over the studs and dowel pin hole in the housing (1), carefully push the cover on the housing until the flange of the cover touches the housing.
CAUTION:_______MAKE SURE YOU ATTACH THE COVER CORRECTLY. IF YOU DO NOT ATTACH THE COVER CORRECTLY, AN INFLIGHT ENGINE SHUTDOWN CAN OCCUR.
CAUTION:_______DO NOT INSTALL THE REMOVED LOCK NUTS; USE NEW NUTS. THE LOCK PROPERTY OF THE NUT DECREASES WITH USE. IF THE NUT BACKS OUT BECAUSE OF THE DECREASE IN LOCK PROPERTY, OIL LOSS AND AN IN-FLIGHT SHUTDOWN CAN OCCUR.
CAUTION:_______MAKE SURE YOU TIGHTEN THE NUTS CORRECTLY. MAKE SURE TO TIGHTEN THE COVER RETAINING NUTS TO THE TORQUE SPECIFIED. IF YOU DO NOT TIGHTEN THE NUTS AS SPECIFIED, AN INFLIGHT SHUTDOWN CAN OCCUR.
(g)
Attach the cover (13) with four washers (12) and nuts (14).

(h)
Tighten the nuts (14) to 150-170 pound-inches (16.948-19.207 newton-meters).

(i)
Install packing (9), lubricated with engine oil, on plug (10).

(j)
Install plug (10), lubricated with engine oil, into threaded hole in bottom of cover (13).

(k)
Tighten the plug (10) to 110-120 pound-inches (12.428-13.558 newton-meters).

(l)
Attach lockwire or safety cable and safety cable ferrule to plug (10).

S 614-048-N00
(11) Do the servicing procedure for the engine (AMM 12-13-03/201).
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