PRONAR VMP-10, Руководство пользователя, Страница: 74 / 78

5.22
factors, especially these, that cause steel corrosion and forcing tyres ageing. Tyres ought to
be maintained at least once a year with use of available purpose-made agents. Cutting
blades ought to be protected with use of biodegradable oil or agents that do not threat
animals health. Before setting about working with the feed car, you must remove protecting
agents from protected surfaces. Telescopic-joint shaft ought to be stored in horizontal
position.
5.15 SCREWING FORCE OF SCREW JOINTS
When performing maintenance-repair works, you must apply appropriate screwing force with
relation to screw joints, unless otherwise defined. Advised screwing force for most commonly
used screw joints were shown in Figure (5). Defined values refer to steel, not greased
screws.
TABLE 5.8 SCREWING FORCE OF SCREW JOINTS
THREAD STRENGTH RATING APPLIED SCREWING FORCE
[Nm]
M24 8.8 470
M20 10.9 380
M20x1.5 8.8 185
M20x1.5 5.8 115
M18x1.5 8.8 150
M16 8.8 140
M12 8.8 65
M12 5.8 40
M10 8.8 40
M10 5.8 25