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Table 2 Type of SAL disc harrow.
Type of
harrow
Working
width [m]
Number of
discs [pcs.]
Spacing of
disc rows
[mm]
Diameter of
toothed discs
[mm]
Min. tractor
power [HP]
Weight
(kg)
SAL 3.0
3,00
24
1190
610
130
1840
2.1 Purpose of the SAL disc harrow
The disc harrow is designed for post-harvest cultivation (with chopped straw) and
pre-sowing in both ploughing and ploughless technology. The unit can also be used for
mixing catch crops into the soil or cultivating wasteland overgrown with tall volunteer
seeds.
The working elements are toothed discs with a diameter of 620 mm in two
staggered rows, mounted on posts secured by springs. Equipping each disc with its own
maintenance-free bearing allows the disc to be optimally inclined to the direction of
travel and the ground. This allows the stubble to be thoroughly undercut, and harvest
residues to be evenly mixed and broken up. As a result, soil evaporation is interrupted,
plant residues decompose more quickly and there is a reduction in the intensity of
phenolic compounds negatively affecting the development of succeeding plants. The
toothing of the discs aids penetration. The shaft located at the rear of the machine
compacts the soil, resulting in faster emergence of weeds and volunteer seeds. The use
of a disc harrow before sowing ensures thorough mixing of fertiliser into the soil,
levelling of the surface and proper soil structure.
NOTE! The disc harrow is designed exclusively for agricultural use. Use for
any other purpose will be construed as misuse and will void the warranty.
Failure to comply with the recommendations in these operating instructions
will also be construed as misuse.
NOTE! MANDAM provides a guarantee for maintenance-free hubs under the
following conditions:
- comply with the principle of replacing the working discs in the event of
wear, which must not exceed 520mm in diameter for discs Ø620mm,
- use the original MANDAM plates,
- not to exceed the permitted working depth, which is 11cm,
- observe the rule prohibiting the turning manoeuvre with the harrow when
it is in the working position (working discs buried in the soil).
NOTE! The manufacturer is not liable for damage resulting from the
operation of the machine not in accordance with its intended use.
3. General safety rules
The disc harrow may only be started up, used and repaired by persons who are
familiar with its operation and the associated tractor and with the rules of conduct for
the safe operation and handling of the disc harrow. The manufacturer is not responsible
for arbitrary changes to the harrow design. During the warranty period, only factory-
made "MANDAM" parts must be used.
