Koyker C185 Owner's Manual page 30

Loader
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1. Tightening Bolts & Nuts
Check all loader bolts and nuts for tightness every 50 working hours. The movement of the loader over
rough terrain may cause bolts to come under pressure and over a long period of time some slight
stretching of the bolt may occur. The slack created may need to be taken up by tightening.
Please refer below for recommended torque settings.
Metric Recommended Torque Settings
Class 8.8
Lubricated
Size
N*m Lb-ft
M6 ...................... 9
M8 ...................... 22
M10 .................... 43
M12 .................... 75
M14 .................... 120
M16 .................... 190
M18 .................... 260
M20 .................... 375
M22 .................... 510
M24 .................... 650
M27 .................... 950
M30 .................... 1300
M33 .................... 1750
M36 .................... 2250
Grade 5
Lubricated
Size
N*m Lb-ft
1/4 ....................... 9.5
5/16 ..................... 20
3/8 ....................... 35
7/16 ..................... 55
1/2 ....................... 85
9/16 ..................... 125
5/8 ....................... 170
3/4 ....................... 300
7/8 ....................... 490
1 .......................... 725
1-1/8 ................... 900
1-3/8 ................... 1700
1-1/2 ................... 2250
DO NOT use these values if a different torque value or tightening procedure is given for a
specific application. Torque values listed are for general use only and include a +/- 10%
variance. Check tightness of fasteners periodically. DO NOT use air powered wrenches.
Shear bolts are designed to fail under predetermined loads. Always replace shear bolts with
identical grade.
TORQUE SPECIFICATIONS
Dry
N*m Lb-ft
6.5
11
8.5 ...................... 13
16
28
20 ....................... 32
32
55
40 ....................... 63
55
95
70 ....................... 110
88
150
110 ..................... 175
140
240
175 ..................... 275
195
330
250 ..................... 375
275
475
350 ..................... 530
375
650
475 ..................... 725
475
825
600 ..................... 925
700
1200
875 ..................... 1350
950
1650
1200 ................... 1850
1300
2200
1650 ................... 2500
1650
2850
2100 ................... 3200
SAE Recommended Torque Settings
Dry
N*m Lb-ft
7
12
9 ......................... 13.5
15
25
18 ....................... 28
26
44
33 ....................... 50
41
70
52 ....................... 80
63
110
80 ....................... 120
90
155
115 ..................... 175
125
215
160 ..................... 215
225
375
280 ..................... 425
360
625
450 ..................... 700
540
925
675 ..................... 1050
675
1150
1200 ................... 2050
1250
2150
1550 ................... 2700
1650
2850
2100 ................... 3600
Page 28
Class 10.9
Lubricated
Dry
N*m Lb-ft
N*m Lb-ft
9.5
17
24
40
47
80
80
140
130
225
200
350
275
475
400
675
540
925
675
1150
1000
1700
1350
2300
1850
3150
2350
4050
Grade 8
Lubricated
Dry
N*m Lb-ft
N*m Lb-ft
10
17
21
35
36
63
58
100
90
150
130
225
160
300
310
550
500
875
750
1300
1500
2600
2000
3400
2650
4550
12
30
60
105
165
225
350
500
675
850
1250
1700
2350
3000
12.5
26
46
75
115
160
225
400
650
975
1950
2550
3350

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