AGCO Massey Ferguson 533, Workshop Service Manual

Page: 30 / 31

Miscellaneous Data
1Cñ2
MF 533/543/563 - Issue 1
BOLT TORQUE SPECIFICATIONS (GENERAL GUIDE FOR INCH FASTENERS)
Use the ìStandard Torqueî charts as a general guide when tightening fasteners that DO NOT HAVE SPECIFIC
TIGHTENING RECOMMENDATIONS.
Inch Fasteners
Standard torque in Newton Metres (Foot Pounds)
* Inch bolt
size
SAE grade 5
**mild steel
below grade 5
SAE grade 8
ISO grade 8.8
BS grade S
ISO grade 10.9
BS grade V
***Non -rigid joint **** Rigid joint *** Non -rigid joint **** Rigid joint
1/4 inch 6-8
(4-6)
9-12
(7-9)
11-15
(8-11)
13-18
(10-13)
16-22
(12-16)
5/16 inch 12-16
(9-12)
18-24
(13-18)
22-30
(16-22)
25-34
(18-25)
31-43
(23-32)
3/8 inch 22-30
(16-22)
31-42
(23-31)
39-53
(29-39)
44-60
(32-44)
55-75
(41-55)
7/16 inch 35-47
(26-35)
51-69
(38-51)
64-86
(47-63)
72-96
(53-71)
90-120
(66-89)
1/2 inch 54-72
(40-53)
80-104
(59-77)
100-130
(74-96)
110-140
(81-103)
140-180
(103-133)
5/8 inch 110-140
(81-103)
160-210
(118-155)
200-260
(148-192)
220-300
(162-221)
280-370
(207-273)
3/4 inch 190-250
(140-184)
280-370
(207-273)
350-460
(258-339)
390-530
(287-391)
490-660
(361-487)
7/8 inch 310-410
(228-302)
450-610
(332-450)
560-760
(413-561)
640-850
(472-672)
800-1060
(590-782)
1 inch 460-620
(339-457)
670-900
(494-664)
840-1120
(620-826)
960-1280
(708-944)
1200-1600
(885-1180)
Key to table above:
*
NOTE: The size is the diameter of the shank - not the head width.
** NOTE: Mild steel torque values to be used for SAE Grade 5 bolts when weld nuts, or other low
strength nuts are used.
*** NOTE: Use these values when any of the following conditions exist:
1. Possible damage to the joined members of the assembly may occur.
2. Thick and/or highly compressible gaskets are used between members.
3.Non -flat unmachined seating surfaces for bolt head (or nut) occurs.
4.Non -flat or non -parallel joint faces are encountered.
****
NOTE: Use these values when ALL of the following conditions exist:
1. Damage will not occur to the joined members of the assembly.
2. It is desirable to use this higher clamping force to ensure tightness.
3. Fastener thread is not lubricated prior to assembly.
4