Hardi NAVIGATOR VPZ, Instruction Book

Page: 165 / 204

6 - Maintenance
165
9.
Adjust the piston rod end (A) further out with one turn
(approximately 2 mm). Tighten the counter nut again.
10.
After adjustment, looking through the hole, it should look like this.
The piston rod is a little too long when fully extracted.
11.
Fit cylinder arm (A) to the lock bracket again (B).
12.
After adjustment, the lock mechanism should be in locked
position, when the cylinder (A) is fully extracted.
13.
Fold the boom to horizontal transport position (half the folding
procedure).
14.
Adjust the cylinder stop (E), so that it is just touching the cylinder
housing.
Boom Wings Forward
The boom wings are adjusted from factory to tip a little forward in the
driving direction, when the boom is completely unfolded.
This will help the boom wings stay in front of, or aligned with, the boom
centre during spraying, as the boom will move a little back and forth
when driving in the field (yaw movements).
Uneven terrain or varying driving speed will magnify the boom
movements.
If the boom falls behind the boom centre, the center of gravity will also
shift the wrong way, which can result in inaccurate spraying.