ALMAC BiBi 850-BL - Checking and Tightening Screws, Bolts, Nuts, Plug Ring Nuts

BIBI 850-BL Use and maintenance manual Rev.00
78
6.2 Checking and tightening screws, bolts, nuts, plug ring nuts
The operation of the following components must be checked. If necessary, the parts must be tightened
with the appropriate tools as indicated in the charts on the following pages.
Preload and tightening torque for screws with ISO coarse thread
No
minal
diameter of
screw
M
ax preload (kg)
M
ax torque (kgm)
6,6
8,8
10
,9
12
,9
6,6
8,8
10
,9
12
,9
6 D
8 G
10
K
12
K
6 D
8 G
10
K
12
K
M
4x0,7
22
2
39
4
55
4
66
5
0,17
0,31
0,43
0,52
M
5x0,8
35
7
63
5
89
5
10
70
0,33
0,60
0,84
1,01
M
6x1
50
7
90
2
12
70
15
20
0,58
1,03
1,46
1,75
M
7x1
72
8
13
00
18
20
21
80
0,94
1,69
2,36
2,83
M
8x1,25
92
0
16
40
23
10
27
70
1,39
2,48
3,49
4,19
M
9x1,25
12
10
21
60
30
50
36
30
2,05
3,67
5,18
6,17
M 10x1,5
1480
2600
3660
4380
2,83
4,97
7,00
8,37
M 12x1,75
2120
3780
5320
6380
4,74
8,46
11,90
14,30
M
14x2
28
90
51
60
72
50
87
00
7,54
13
,46
18
,92
22
,70
M
16x2
39
50
70
20
99
00
11
900
11
,50
20
,40
28
,80
34
,60
M
18x2,5
48
40
86
00
12
100
14
500
16
,00
28
,40
40
,00
48
,00
M
20x2,5
61
60
11
000
15
450
18
500
22
,20
39
,60
55
,60
66
,60
M
22x2,5
76
30
13
600
19
100
22
900
30
,00
53
,00
74
,50
90
,00
M
24x3
89
00
15
900
22
300
26
700
39
,00
70
,00
98
,00
11
7,00
M
27x3
11
500
20
600
28
900
34
700
56
,00
10
1,00
14
2,00
17
0,00
M
30x3
14
100
25
200
35
400
42
400
77
,00
13
8,00
19
3,00
23
2,00
1
2
1
3
1 – Bo
lts and nuts that fasten the lift cylinder
2 – Arm plug ring nuts
3 – Mechanical safety stops
4 – Undercarriage bolts in general
4