LEVELFLEX
Side 23
7.
Mounting of a new cylinder is to be done in reverse order. Use self-tightening
nuts and avoid tightening them too much, because the cylinder eye must be
able to turn around freely in the fork for the meshing of the crackerboard.
8.
After the mounting, raise and lower the crackerboard a few times in order to air
the system. Be careful that the tubes are not squeezed and that the connec-
tions are tight.
Replacement of the set of packings
The repair is done when the LEVELFLEX is resting on the ground and the side sec-
tions are lowered. The repair can be done either with the LEVELFLEX mounted in the
lift on the tractor or unfastened while standing on both support legs. Remember to
depressurise the cylinders before the hydraulic tubes are loosened.
1.
Remove the tubes. (To avoid pollution of the ground during repair, it is recom-
mended to pick up the oil in a tray).
2.
Remove the split pins and the rivets, where after the cylinder is free.
3.
Drain the cylinder of oil by moving the piston back and forth.
Plate 25
4.
Slide the piston into centre position, where after the top piece (pos. 8) is un-
screwed approx. 25 mm. A special tool is needed to remove the top piece. If the
top piece is very tight, a minor heating of the socket’s front part will loosen it.
When the top piece has been unscrewed 25 mm, the piston can be pulled out
towards the top piece and then the top piece can be screwed off entirely,
where after the piston rod (pos. 6) can be pulled out of the cylinder tube (pos.
5).
5.
Remove the locking nut at the bottom of the piston rod.
6.
Pull the sleeve shoe (pos. 2) off the piston rod.
7.
Pull the top piece (pos. 8) off the piston rod.
8.
Remove the packings in the top piece and the sleeve shoe (pos.
1+3+4+7+9+10+11).
9.
Clean all parts and check for cuttings, burrs etc. Check for any rust gatherings
around the scraber ring (pos. 11) in the top piece. If any rust is found it must
be removed.
Mounting
1.
Mount the new packings in the top piece and the sleeve shoe.
2.
Apply grease or rust-preventive anti-seizure agent to the thread of the top
piece (pos. 8) and the cylinder tube.
3.
Mount the top piece (pos. 8) on the piston rod.
