GASPARDO MTE Empleo Y Mantenimiento página 74

ENGLISH
PROBLEMS
Irregular seed drilling
(inaccurate distance
between seeds).
Seeds spill over from
the distributor.
Few seeds reach the
distributor.
Seed disc does not ro-
tate or does not work
correctly.
The seeds fall off the
seed disc.
74
CAUSES
1) Wear of furrow-opening coulter.
2) Over-tensioned tensioning spring of V seed-
covering wheels.
3) Unsuitable rear seed-covering wheels.
4) Deformed or worn seed disc (over 1/3 of its
original thickness).
5) Deformed or missing seed disc pins.
6) Worn or broken seed disc gasket.
7) Badly adjusted moving selector. WARNING!
The selector does not regulate the amount
of air coming into the seed distributor.
8) Flat tyres: gear ratio is altered.
9) Forward speed is too fast.
10) Incorrect WHEEL-GEARBOX AXLE ratio
and/or gearbox adjustment.
11) Drop in seed aspirator revs.
12) Wear of distributor drive shaft joints.
13) Use of small seeds or seeds with electro-
static charge (rape, beet).
14) The seed drill is not perpendicular to the
ground and is pointing forwards.
15) The furrow opener discs fi ll up with earth
because they are sloping backwards.
16) The furrow opener discs are not turning.
Anti-spill-over plate too open.
Anti-spill-over plate too closed.
1) Seed distributor bevel gear is stuck.
2) Seed distributor bevel gear is worn or bro-
ken.
3) Disc feed hub has oxidized.
4) Seeds dressed with sticky products that in-
crease the friction between disc and gasket.
5) Broken plastic safety bolt.
6) Moving selector is too closed.
7) Use of fi xed selector with large seeds (beans,
chickpeas, etc).
8) Fixed selector is bent and knocks against the
disc.
9) Worn or broken transfer case.
10) Distributor transmission universal joint not
hooked up.
1) Insuffi cient suction
a) Slack belt
b) Broken belt
c) Holes in air tubes
d) Blocked air tubes
2) Rev speed not constant or not suffi cient.
3) Seed disc holes of insuffi cient diameter.
USE AND MAINTENANCE
1) Replace
2) Slacken
3) Replace
4) Replace the seed disc. We advise replacing
the gasket when replacing the seed disc.
5) Replace the seed disc.
6) Replace the gasket.
7) Adjust the selector:
Small seeds (small numbers of selector).
Large seeds (large numbers of selector).
8) Pump up according to technical data table.
9) Reduce the drilling speed.
10) Consult the WHEEL-GEARBOX table and
change the ratios as necessary.
11) Check:
a) belt tension
b) tractor's power take-off revs
c) breakage of air tubes to the seeding
12) Replace
13) Use the ejector for coated seeds.
14) Lengthen third point linkage.
15) Shorten the third point. Remember to lower
the machine with the tractor moving and
never move it in reverse with the seed drill
lowered.
16) Replace the bearing of the furrow opener
disc. Ground too muddy and not suitable
for the seed drill.
Close or replace with G22270133.
Open
1) Free it with anti-seize products.
2) Replace (replace bushings and gear
axle).
3) Free it with anti-seize products.
4) Clean disc and gasket often. If possible, use
other dressed products.
5) Replace
6) Open
7) Remove the fi xed selector.
8) Replace
9) Replace
10) Hook up
1)
a. Tension the belt
b. Replace
c. Replace
d. Cleaning (check the suction in the tube
2) Use the tractor's hand accelerator.
3) Replace the seed discs.

SOLUTIONS
elements.
with your palm at the seed distributor
end).
cod. G19503270