747-400 AMM 飞机维护手册 STANDARD PRACTICES - AIRFRAME(151)

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BOLT  STYLE  12-POINT 12-POINT  HEX HEAD  PAN HEAD  100` HEAD  12-POINT HEXHEAD  PANHEAD  100`HEAD SOCKETHEAD  ALL  ALL
PART NUMBER  B30USB30TRB30NGB30NH  B30FDB30MRB30LEB30PN 2  B30NMB30LMB30NENAS6603THRUNAS6620NAS6703THRUNAS6720  B30LNB30NSB30EM  B30LPB30EMB30LUB30LRB30MSB30NN  B30LTB30NLB30NJB30NKB30UU  B30LJB30NRB30NFB30PFB30PUS12CBNAS563THRU 572NAS1801B30PWNAS1802NAS6203THRUNAS6220  B30LKB30NTB30BEB30BGNAS1217NAS1218NAS600THRUNAS606NAS623  B30PCB30LHB30RFB30SWB30UW  MS21262MS24678NAS1351NAS1352  ALL  ALL 
THREAD SIZE TORQUE RANGE (POUNDS-INCH)
DRY BOLT LUBED BOLT3  DRY BOLT LUBED BOLT 3  DRY BOLT 3LUBED BOLT  DRY ORLUBED BOLT3  DRY ORLUBED BOLT3 
8-32 OR 8-362-56 OR 2-644-40 OR 4-486-32 OR 6-40  ------------ ------------ ------------ ------------ 3.4-4.56-812-1515-20 3.4-4.56-812-1515-17 3.4-4.56-812-1515-17 ---------5-6
10-321/4-283/8-245/16-24 ---90-125180-250300-500 ---70-80145-180275-330 30-3565-100130-200220-410  20-2550-7590-125150-250 50-80100-150160-24025-35  20-2550-7590-125150-200 18-2530-5095-16060-95 6-8---------
1/2-205/8-189/16-187/16-20  510-840870-13001300-18001900-2300 370-440500-575800-10001350-1650 370-690630-10701000-14701400-1900 260-425440-650700-9201000-1200 250-350480-790800-11501100-1500 240-300440-650700-9201000-1200 220-280290-510480-850660-980 ------------
3/4-167/8-141-12 OR 1-141-1/8-12 3300-43005100-67007000-10,9009500-13,000 2800-33002900-45006200-70008300-9400 2400-35003700-55005100-89006900-10,700 1700-21502600-34003600-55004900-6700 2300-30002500-45003700-75005000-9000 1700-21502600-34003600-55004900-6700 1300-20001500-33002200-53003000-6200 ------------
1-1/4-121-3/8-121-1/2-12  15,800-19,20020,000-24,000--- 11,000-12,00016,000-17,000--- 11,500-15,700------ 7500-9700------ ------9000-13,000  7500-9700------ 5400-86007000-900010,000-12,000  ---------

WHEN ANY BOLT IS TO BE INSTALLED BY WRENCHING THE HEAD, SUCH AS WHEN YOU INSTALL BOLTS INTO PLATE-NUTS, CLIP-NUTS, BARREL-NUTS, INSERTS, OR TAPPED HOLES, THE INSTALLATION TORQUE MUST BE THE MAXIMUM TORQUE
SHOWN IN THE TABLE FOR THE NUT |10%.
WHEN B30LE OR PN BOLTS ARE INSTALLED WITH N10HR NUTS, USE THE INSTALLATION TORQUE SHOWN FOR N10GW NUTS.
LUBRICATED BOLTS INCLUDE DRY-FILM-LUBRICATED (MIL-L-8937) BOLTS AND BOLTS WITH ANTI-FRICTION COMPOUNDS SUCH AS EASE-OFF 990, MIL-C-11796, AND MIL-G-23827 APPLIED TO THE THREADS.
WHEN YOU SAFETY FINE CASTELLATED NUTS, TIGHTEN THE NUT TO THE LOW SIDE OF THE SELECTED TORQUE RANGE; IF NECESSARY, CONTINUE TO TIGHTEN IT UNTIL A SLOT ALIGNS WITH THE SAFETY HOLE.

Torque Values for Bolts and Nuts
Figure 202 (Sheet 1)

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747-400
MAINTENANCE MANUAL

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747-400
MAINTENANCE MANUAL

Torque Values for Bolts and Nuts
Figure 202 (Sheet 2)

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 20-51-01
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MAINTENANCE MANUAL

THREAD SIZE  DASH NO. DIAMETER  5 NAS1423 AND NAS509 JAM NUTS  6 ALL OTHER NONSELF-LOCKING JAM NUTS 
TORQUE, INCH-POUNDS  TORQUE, INCH-POUNDS 
MINIMUM TARGET MAXIMUM  MINIMUM TARGET MAXIMUM 
0.1900-32  -3  161310  221916 
0.2500-28  -4  211815  302724 
0.3125-24  -5  363330  524946 
0.3750-24  -6  464340  706560 
0.4375-20  -7  706560  9893 103 
0.5000-20  -8  858075  109 116 124 
0.5625-18  -9  959085  128 135 143 
0.6250-18  -10  96 101 106  144 151 159 
0.7500-16  -12  150 158 165  227 237 247 
0.8750-14  -14  210 220 230  315 330 345 
1.0000-12  -16  270 280 290  400 420 440 
1.1250-12  -18  350 365 380  523 548 573 
1.2500-12  -20  430 450 470  705645 675 
　
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