DALBO POWERCHAIN 800, User Instructions, Page: 49 / 55

POWERCHAIN
Page 49
Changing the cylinder for tightening the disc chain
Fig. 28
1. The disc harrow is folded out
with the disc chains resting on
the ground.
2. Check that the pressure has
gone from the manometer so
that the cylinder (A) is
depressurised.
3. The hoses are disconnected from
the cylinders.
4. Bolts, split pins and pins (B) are
removed.
5. A new or repaired cylinder (A) is
mounted.
6. Remember to install the split
pins in the pins.
After mounting, the tilt cylinder is activated until a small amount of movement can
be felt in the cylinder. The cylinder is then activated in the opposite direction until
the cylinder is back at the starting position. The cylinder is moved in this way a few
times, whereupon the cylinder is moved out to the outer positions a few times to
air the system out.
Individuals must not be present within the action radius of the implement.
Replacing the set of gaskets when tightening the disc chain
Fig. 29
8. The cylinder is emptied of oil by carefully moving the piston back and
forth.
9. Move the piston to the middle position, then unscrew the upper cap
(pos. 3) from the cylinder tube (pos. 1). A special tool must be used to
remove the cap. If the upper cap is very tight, this can be remedied by a
little heating of the front of the upper cap. When the cap is unscrewed
from the cylinder tube, pull the piston towards the cap. The piston rod can
then be removed from the cylinder tube (pos. 1).
10. The lock nut (pos. 10) that is holding the sleeve (pos. 4) is disassembled.
A
(A)
(A)
A - A
5 3 6 7 1 2 8 9 10 4