Minimum Hardware Tightening Torques - New Holland SF550 Repair Manual

SECTION 00 - GENERAL ff•<&FORMATION
MINIMUM HARDWARE TIGHTENING TORQUES
IN FOOT POUNDS (NEWTON-METERS) FOR NORMAL ASSEMBLY APPLICATIONS
INCH HARDWARE AND LOCKNUTS
SAEGRAD£2
SAEGRADE5 SAEGRADE8 LOCKNUT'S
NOMINAL
UNPLAYED PLATED UNPLATEO PLATED UNPLAYED PLATED GR.B GR.C NOMINAL
SIZE
or
W/ZoCr
or
Wtz.nCr or W/ZoCr w/GR5 w/GR8 SIZE
PLATED PLATED PLATED BOLT BOLT
SILVER GOLD SILVER GOLD SILVER GOLD
1/4
55" (6.2) 72" (8.1) 86" (9.7)
112·
(13) 121· {14)
1sr (18)
61" (6.9)
sa·
(9.8) 1/4
5/16
115"
(13)
149• (17)
178· (20)
229• (26)
2&r (28) 324* (37) 125• (14) 176" (20)
5116
3/a 17 (23) 22 (30) 26 (35) 34 (46) 37 (50) 48 (65) HI (26) 26 (35)
3/8
7/16
27 (37) 35 (47)
42 (57) 54(73) 59 {80)
77 (104) 42 (57)
7116
i/2 42 (57) 54 (73) 64(87) 83 (113) 91 (123) 117 (159) 64 {88) 1/2
9/16
60 (81) 77 (104) 92 (125} 120 (163) 130 (176) 169 (229) 92 {125) 9/16
5/8
83 (112) 107 (145) 128 (174)
1
160 (244) 233 127 (172) 5/8
3/4 146 {198)
189 {256}
226(306) 293 (397) 319 (432)
413 (560) 226 (306}
3/4
118 142 (193) 183 (248} 365 (495) 473 (641}
515 (698}
667 (904) 364 {494) 7/8
1
213 (289}
275 (373) 547(742) 708 (960} 773 (1048} 1000 (1356)
545 (739)
1
NOTE: Torque values shown with
*
are inch pounds.
IDENTIFICATION
CAP SCREWS AND CARRIAGE BOLTS
SAE GRAD£ 2 SAE GRAD£ 5 SAEGRAD£8
REGULAR NUTS SAE GRADE 5 SAE GRADE 8
HEX NUTS HEX NUTS
LOCKNUTS
A--
GRADE IDENTIFICATION
GRAD£ A NO NOTCHES
GRAD£ BONE CIRCUMFERENTIAL NOTCH
GRAD£ C TWO aRCUMFERENTIAL NOTCHES
GRADE
A
NO MARKS
GRAD£ B THREE MARKS
GRAD£ C SIX MARKS
MARKS NEED NOT BE LOCATED
ATCORNERS
GRADE A NO MARK
GRADE B LETTER B
GRADE C LETTER C
GRADE IDENTIFICATION
0-12