©Copyright Agrispread September 2014 5
830 Belt Spreader
Setting the Application Rate
The application rate of material is controlled by the back door settings and gear selection.
Refer to the rate charts in Appendix 1 - Setting your Spreading Rate. At the back of this
manual for guideline settings of the door opening in millimetres and which gear should be
selected. Once you have selected your rate from the charts, remove the retaining pins in the
door handles and adjust the door so that the top of the door indicator lines up with your
selected figure on the chart. Replace the retaining pins and check that both doors are level
with each other. The rate is now set. With the huge variation of prills and compounds it is
impossible to be 100% accurate without checking the batch of material you are spreading.
GEAR SETTINGS
Med..High..Low gear denoted on the table refers to the gear box selector on the inside of the
jockey wheel drive arm. Gear is selection is indicated on the decal on the gear box. Neutral is
between each gear. Always remember to replace the retaining pin after changing gear. Details
of changing gear are explained on page 8.
Use will dictate accurate settings.
To Start Spreading
Single Spool Tractors... Start by opening the tractor spool valve.
Twin Spool Tractors... Start the spinners by opening the tractor spool valve. Engage
the gearbox by lowering the gearbox ram until the gearbox jockey wheel is in full contact
with the trailer wheel. Do not run at high speed while engaging wheel.
Both... Ensure engine RPM is within the range as when the spinner speed was set and check
the spinner speed on the tachometer. Drive off maintaining engine RPM and using the tractor
gearbox to keep the engine from labouring. This will ensure the hydraulic flow will be
sufficient to maintain constant spinner speed.
To Stop Spreading
Single Spool Tractors... To raise jockey wheel clear of main wheel return the hydraulic
selector for the spinner to off through neutral to reverse flow until wheel is lifted and then
return to neutral.
Twin Spool Tractors... Lift the gearbox clear of the main trailer wheel by operating the
gearbox ram spool valve on the tractor, only stop spinners if required. Stop spinners by
operating the spinner spool valve on the tractor when required.
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