Use e Maintenance ENGLISH4.7.11 Parking the machineThe machine must be cleaned of any fertiliser residuesbefore parking.Fertilisers mixed with the humidity in the air areextremely corrosive. Keeping the machine cleanmeans prolonging its duration over time.Do not park the fertiliser spreader in direct contact withthe ground. If possible, park the machine on a woodenpallet.Always park the machine on even, compact ground.Only park the machine if the hopper is empty.Using the storage wheels (optional)The storage wheels allow you to easily move the machineonce unhooked from the tractor.To assemble the storage wheels, proceed as follows.DANGER!All operations must be done exclusively with thetractor off, P.T.O. disengaged, parked withparking brake and with the key removed.1. With the machine lifted, insert the 4 wheels in theirhousing (A) see fig. 4.29 and lock the wheels withthe specific elastic pin (B).2. Lower the machine to the ground and unhook it fromthe tractor (see § 4.1.2 on page 21).3. Push the machine to the storage area. Make sure theground is even and compact.4. Frenare le ruote di rimessaggio premendosull’apposito pedale di frenatura (vedi fig. 4.30).4.8 HOW TO WORKThe PRIMO centrifugal fertiliser spreader was designedexclusively for normal use in agricultural work and is suit-able to spread dry, granulated, pellet and crystal fertilisers,seeds and snail and slug bait.All the adjustments for proper fertiliser spreading aremade according to spreading tables created based ontests done at specialised laboratories. Despite everything,even following the instructions to adjust the machine ex-actly, we cannot exclude variations in spreading comparedFigure 4.29: Storage wheelsFigure 4.30: Storage wheels - wheel braketo the expected results. Before starting to spread a newfertiliser, it is essential to proceed with the machine cali-bration operations as shown in § 4.7.8, 4.7.9 and 4.7.10.Below is a list of the main causes that lead to variationsin spreading quality.• Variations in the physical features of the fertilisers orseeds. In particular, fertilisers have physical features(granule size and shape, specific weight, degree ofhumidity, etc.) that can vary for the same fertilisereven based on the production batch (same type andbrand).• Weather variations that change how well the fertiliserslides.• Storage conditions that may make it easier for lumpsto form in the product to be spread.• Uneven or not flattened soil.• Excessive wear in the spreading parts (vanes, discs,agitator).• Excessive wind.• Incorrect rpm and drive speed.• Machine not adjusted properly.• Adjustment tests not run.• Poor machine cleanliness.Cod. F07011577 EN - 37