Problems, Causes And Solutions - GASPARDO SP SPRINT Empleo Y Mantenimiento

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6.2 PROBLEMS, CAUSES AND SOLUTIONS

PROBLEMS
Irregular seed drilling
1) Wear of furrow-opening coulter.
( i n a c c u r a t e d i s t a n c e
2) Excessively tense seed compression spring.
between seeds).
3) Unsuitable rear seed-covering wheels.
4) Deformed or worn seed disc (over 1/3 of its origi-
5) Deformed or missing seed disc pins.
6) Worn or broken seed disc gasket.
7) Badly adjusted moving selector. WARNING!
8) Flat tyres: gear ratio is altered.
9) Forward speed is too fast.
10) Incorrect WHEEL-GEARBOX AXLE ratio and/or
11) Drop in seed aspirator revs.
12) Wear of distributor drive shaft joints.
13) Use of small seeds or seeds with electrostatic
14) The seed drill is not perpendicular to the ground
15) The furrow opener discs fi ll up with earth because
16) The furrow opener discs are not turning.
17) Bush clearance.
Seeds spill over from the
distributor.
Few seeds reach the di-
stributor.
Seed disc does not rotate
1) Seed distributor bevel gear is stuck.
or does not work correct-
2) Seed distributor bevel gear is worn or broken.
ly.
3) Disc feed hub has oxidized.
4) Seeds dressed with sticky products that increase
5) Broken plastic safety bolt.
6) Moving selector is too closed.
7) Use of fi xed selector with large seeds (beans,
8) Fixed selector is bent and knocks against the
9) Worn or broken transfer case.
10) Distributor transmission universal joint not hooked
The seeds fall off the seed
1) Insuffi cient suction
disc.
2) Rev speed not constant or not suffi cient.
3) Seed disc holes of insuffi cient diameter.
The seed furrow remains
1) Rear compression wheels not in line with furrow
open and the seeds un-
covered.
2) Rear seed-covering wheels not suitable for the
Irregular seed drilling
depth.
78 - EN
USE AND MAINTENANCE
CAUSES
nal thickness).
The selector does not regulate the amount of air
coming into the seed distributor.
gearbox adjustment.
charge (rape, beet).
and is pointing forwards.
they are sloping backwards.
Anti-spill-over plate too open.
Anti-spill-over plate too closed.
the friction between disc and gasket.
chickpeas, etc).
disc.
up.
a) Slack belt
b) Broken belt
c) Holes in air tubes
d) Blocked air tubes
opened by shoe; equalizer inclined with respect to
gear direction.
ground.
Clod clearer set too low.
1) Replace
2) Loosen
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 chan-
ge the ratios as necessary.
11) Check:
a) belt tension
b) tractor's power take-off revs
c) breakage of air tubes to the seeding elements.
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.
17) Replace.
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.
b.
c.
d.
with your palm at the seed distributor end).
2) Use the tractor's hand accelerator.
3) Replace the seed discs.
1) Centre equalizer by adjusting front fork posi-
tion.
2) Replace.
Raise the clod clearer: it must be set as shown in
the instruction booklet.
SOLUTIONS
Tension the belt
Replace
Replace
Cleaning (check the suction in the tube
cod. G19501383

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