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SECTION 5
• Wheel rims and tyres should be carefully washed and dried. During a longer
storage of unused mixer feeder, it is recommended that every 2 to 3 weeks the
machine should be moved a bit so that the place of contact of tyres with ground is
changed. The tyres will not be deformed and maintain proper geometry. Also, air
pressure in tyres should be inspected from time to time and, if necessary,
pressure should be increased to appropriate value.
• PTO shafts should be stored in horizontal position.
5.12 TIGHTENING TORQUE FOR NUT AND BOLT
CONNECTIONS
Unless other tightening parameters are given, during maintenance repair work apply
appropriate torque to tighten nut and bolt connections. Recommended tightening torque for
the most frequently used nut and bolt connections are given in table below. Given values
apply to non-lubricated steel bolts.
TABLE 5.6
Tightening torque for nut and bolt connections
METRIC THREAD
M10
M12
M14
M16
M20
M24
M27
M30
(1)
– strength class according to DIN ISO 898 standard
(1)
5.8
37
64
100
160
300
530
820
1 050
5.25
Pronar VMP-5ST | Pronar VMP-6ST
(1)
8.8
Md [Nm]
49
85
135
210
425
730
1 150
1 450
(1)
10.9
72
125
200
310
610
1 050
1 650
2 100
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