114
If desired, a lifting and adjusting system
can be installed between the drawbar
and the overrun system. The control arms
of the adjusting system permit swivelling
about an angle of -10° to +49° in six
positions. In every case, the overrun
system or drawgear always remains
horizontal.
An integral gas-filled strut automatically
generates lifting force which reduces the
force required by the user. If the strut
becomes damaged or develops a leak, it
must be replaced.
Information regarding dual-row angular bail
bearings:
* These bearings are maintenance-free,
have been provided with a lifetime
lubrication. and have an extremely high
running performance.
* The bearings have been fixed in their
correct position using a safety flanged
nut. This flanged nut must be tightened
with a torque of 280 +/- 10 Nm.
* It is recommended to check this
tightening torque in the course of service
works.
* The flanged nut can only be unscrewed
and re-used once. Afterwards. a new nut
must be used. When releasing or
tightening the flanged nut, grease the
threads slightly, so as to avoid damage
to the fine thread.
* Due to the high durability and the
maintenance-free design of these dual-
row angular ball bearings, there will be
no damage at the bearings under
normal conditions.
* If. due to exceptional circumstances.
problems were to occur with these
bearings, completely new brake drums
with pressed-in bearings, circlips and
new locking nuts should be installed in
principle.
* Due to the design characteristics of the
bearings, the brake drums and the
wheels may have a slight axial and
tilting play; however, this is insignificant.
16. Undercarriage
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