Case 580ST, Operator'S Manual

Page: 357 / 434

7 - MAINTENANCE
Loader bucket - self-levelling adjustment
The self-levelling linkage mounted on the right-hand
loader arm and frame automatically controls the angle
of the loader bucket during the raising cycle of the lift
arms to maintain a constant bucket level. There is no
self-levelling during the lowering cycle.
Self-levelling begins when the tube
(2) on the loader
arm contacts the bell crank (1) and lifts the vertical link-
age rod (3) . The tie rod then moves the bucket spool to
the dump position to level the bucket.
MOLI12LBB0500AB
1
Automatic self-levelling control adjustment
1. Lower the loader attachment to the ground.
2. Disconnect the vertical tie rod (3) at the lower bell
crank.
3. Raise the loader attachment so that the lower bucket
pin is 800 mm ( 31.5 in ) above the ground, and fully turn
over the bucket to the rear.
MOLI12LBB0501AA
2
4. Rotate the bell crank (1) till it touches the tube (2) on
the loader arm. Make sure the lower bell crank arm is
directing upwards.
5. Adjust the length of the vertical rod (3) so that when
reconnected, the end of the loader arm tube remains in
contact with the bell crank.
6. Securely tighten the lock nuts on a vertical tie rod.
MOLI12LBB0502AB
3
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