PRONAR T679, Operator'S Manual, Page: 126 / 135

Pronar T679 SECTION 5
5.36
•
Corroded places should be cleaned of rust, degreased and protected using
undercoat paint and then painted with surface paint according to colour scheme.
•
In the event of a prolonged work stoppage, it is essential to lubricate all
components regardless of the date of the last lubrication.
•
Wheel rims and tyres should be carefully washed and dried. During longer
storage of unused trailer it is recommended that every 2 to 3 weeks the machine
may 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 the appropriate value.
•
If trailer is equipped with tarpaulin cover, it should be carefully washed and dried.
If possible, clean tarpaulin cover should be stored unrolled, otherwise carefully roll
it without folding and breaking the material.
5.10 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 5.7 Tightening torque for nut and bolt connections
5.8
(1)
8.8
(1)
10.9
(1)
METRIC
THREAD
Md [Nm]
M10 37 49 72
M12 64 85 125
M14 100 135 200
M16 160 210 310
M20 300 425 610
M24 530 730 1 050
M27 820 1 150 1 650
M30 1 050 1,450 2,100
(1)
– strength class according to DIN ISO 898 standard