Maintenance
98
Checking sliding
elements
The sliding elements on the two main lifting arms ensure smooth and
even running of the inner lifting arms. The sliding elements must be
checked on a regular basis, and readjusted and lubricated if
necessary.
Check that the telescopic arms retract and extend correctly in the
headland position. Readjust the sliding elements in the case of:
•
Uneven or jerky movements of the lift arms in the headland
position.
•
Inclined position of the telescopic arm in the lift arm.
•
Large vibrations of the rotor in the headland position.
Adjusting the sliding
elements
Fold the machine into its work position.
Undo the counter nut.
Adjust the sliding element by means of bolts so that the inner
telescopic arm moves in and out evenly and freely in the headland
position.
Tighten the counter nut.
Using a brush, apply grease to the sliding surfaces of the inner
telescopic arms.
When readjusting the sliding elements, make sure that you first tighten
the screws until they lock (max 20 Nm, 14.75 ft.lbs), then slacken them
slightly (approx. 1/2 turn).
•
If the sliding elements are fastened too tightly, the telescopic arms
will not travel smoothly.
•
If the sliding elements are not fastened sufficiently, the rotor will
vibrate.
In both cases, this may result in damage to the machine.
Sliding elements
Telescopic
arm
Main lifting arm
Lift arm
Telescopic arm
Align the telescopic arm
with a small degree of
play in the lift arm.
