During the first operating month the tightness of the screw connections in the crane,
shafts and joint shall be checked daily.
It is important to tighten the screw connections to the correct torque. The required wrench
sizes and torques:
Screw size
Wrench size
(mm)
Tightening torque for screws
of 8.8 strength class
(Nm)
M 6 10 11
M 8 13 25
M 10 17 47
M 12 19 78
M 14 22 120
M 16 24 180
M 20 30 335
Tightening torques for wheel fixing screws
Front wheels: 600 Nm
Rear wheels: 540 Nm
5. Cleaning of radiator grilles
Depending on the operating environment,
the radiator grilles shall be cleaned often
enough to prevent the engine from over-
heating. Clean the rear cog screen and the
removable grille using compressed air or a
brush (fig. 29). When necessary, clean the
oil, engine and air conditioner condensers.
Note! The rear cog and the grilles must not
be covered with the engine running.
6. Checking of tyre air pressure
Check the tyre air pressure and external
condition visually. Use manometer if neces-
sary. The correct air pressure for the 500/60-
26.5 tyres is 3.7 bar, the 600/55-26.5 tyres
4.0 bar, the 540/65R28 tyres 3.2 bar.
Do not exceed the indicated pressures.
7. Checking for leakage
Check for any liquid, fluid and oil leakage.
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General