31
Maintenance - Grain Vac
Bolt Torque
Check tightness of bolts periodically, using bolt torque chart as a guide. Always replace hardware
with the same strength bolt.
English Torque Specifications
Bolt dia.
Bolt Torque*
“A”
SAE 2
SAE 5
SAE 8
N.m (lb-ft) N.m (lb-ft) N.m (lb-ft)
1/4"
8 (6)
12 (9)
17 (12)
5/16"
13 (10)
25 (19)
36 (27)
3/8"
27 (20)
45 (33)
63 (45)
7/16"
41 (30)
72 (53)
100 (75)
1/2"
61 (45)
110 (80)
155 (115)
9/16"
95 (70)
155 (115)
220 (165)
5/8"
128 (95)
215 (160)
305 (220)
3/4"
225 (165)
390 (290)
540 (400)
7/8"
230 (170)
570 (420)
880 (650)
1"
345 (225)
850 (630) 1320 (920)
Metric Torque Specifications
Bolt dia.
Bolt Torque*
“A”
8.8
10.9
N.m (lb-ft)
N.m (lb-ft)
M3
.5 (.4)
1.8 (1.3)
M4
3 (2.2)
4.5 (3.3)
M5
6 (4)
9 (7)
M6
10 (7)
15 (11)
M8
25 (18)
35 (26)
M10
50 (37)
70 (52)
M12
90 (66)
125 (92)
M14
140 (103)
200 (148)
M15
225 (166)
310 (228)
M20
435 (321)
610 (450)
M24
750 (553)
1050 (774)
* Torque value for bolts and capscrews are identified by their head markings.
Torque values indicated above are valid for non-greased or non oiled threads and heads unless
otherwise specified. Do not grease or oil bolts or capscrews unless otherwise specified in this
manual. When using locking elements, increase torque values by 5%.
A
SAE-2 SAE-5 SAE-8
A
8.8 10.9
Summary of Contents for Farm King Grain Vac Conveyair 6640
Page 1: ...Operator and Parts Manual 052012 Grain Vac Conveyair 6640 FK376...
Page 2: ......
Page 40: ...40 Parts list Diagrams Grain Vac Description Receiver Tank Dust Collector 20a 20b 25 24...
Page 42: ...42 Parts list Diagrams Grain Vac Description Airlock Blower Assemblies 18 26 27...
Page 48: ...48 Parts list Diagrams Grain Vac Description Cleanup Full Bin Nozzles...
Page 52: ...52 Parts list Diagrams Grain Vac Description Cleanup Hose Couplers 1 2 2 3 4 5 6 7 8 9 10...
Page 61: ......
