Hardi NL Series, Instruction Book

Page: 17 / 52

15
Re-adjustment of the boom
After having used the sprayer for some days the boom should be
adjusted as follows:
When adjusting the sprayer must be on level ground with unfolded
boom.
Boom breakaway
The function of the breakaway is to prevent or reduce boom damage if
it should strike an object or the ground. If it is over-tight, it will not
function. If it is too loose, it will yawn (forward and back movement)
under spraying.
Lubricate coupling before
adjusting spring tension.
Slacken nut A to decrease
breakaway resistance. Do
not overtighten; better
loose than over-tight. Minor
adjustments in the field
may be necessary.
Ensure also channel bolts
B are tight.
Outer section
The hinge should be firm. If
tight it is difficult to fold. To
adjust, tighten or loosen
nuts C.
C