34
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
PST 4
Adjustments and operations
The amount and size of the holes/slots and the thickness of the seed plates can vary
according to the grain size and the desired plant amount.
Adjust the seed rate per linear meter through the sprocket combinations of the Drive
Shaft
{A}
(14, 18, 22, 26, 30, 34 and 38 teeth) and Driven Shaft
{B}
(14,18, 22, 26, 30, 34
and 38 teeth).
Procedures to change the sprocket
Seeds distribution
IMPORTANT
• Move the lever to relieve the chain
tightener and lock it using a pin.
• Manually displace the set of sprockets in
the shaft and align the chosen sprocket with the
chain.
• Release the lever to loose the lock pin.
The cone bolts on the sprockets handling
"TRA" are pre-adjusted on the factory, allowing
to change the sprockets without using any tool.
In case of any sliding motion on the cone shaft,
just release the counter nut and turn around
the bolt to re-lock.
In order to avoid damage to the spring and
shafts, never apply excessive torque when
tightening.
NOTE
SEMENTE
SEEDS
SEMILLAS
05.03.03.3013
{B}
RECÂMBIO DE ENGRENAGENS
SPROCKET COMBINATIONS
CAMBIO DE ENGRANAJES
EIXO MOTOR
DRIVE SHAFT
EJE MOTOR
EIXO MOVIDO
DRIVEN SHAFT
EJE MOVIDO
{A}
38
34 30
2622
18
14
38
34 30
26
2218
14
Driven shaft (B)
Drive shaft (A)
The following pages show the different amount of seeds distributed
to many crops, according to the sprocket combinations.
The correct seed plate matching to the used seeds is very important.
Never combine seeds of different sizes.
The seed and fertilizer distribution tables in this manual must be used
as a reference to start the planter adjustment. Factors such as the
slippage index of the planter wheels (skidding), working speed, tire
inflation, field conditions, seed type and others can make the values
differ from the ones in the table. Therefore, it is always indispensable
to make the practical distribution tests, as indicated on page 40.
