Table of Programmed Maintenance Operation, 50 h 300 h

TABLE 7	TABLE OF PROGRAMMED MAINTENANCE

OPERATION			8 h		50 h	300 h		END
							OF SEASON

Check the level and state of the oil				0
Check the accumulator pressure					0
Check the suction (hoses, pipes, unions)					0
Check and clean the suction				0
and delivery filters
Check the pump fixing feet					0
and screws in general
Check the diaphragm and the oil						X (1)		X (2)
and change if necessary
Check the suction/delivery valves						X		X
Check the pump screws and bolts are tight								X
Check and clean the nozzles and the non-drip diaphragm				0
Check the wear of the nozzles						0
Check the hydraulic oil level					0
Check any failures or cracking of the welds,								0
especially on herbicide booms
Grease the articulated joints and the wheel hubs					0
Check the tyre pressure					0
NOTE:	0 Operation to be carried out by the operator
	X Operation to be carried out by a specialised technician or in an authorised workshop
	(1) First oil change
	(2) Change at the same time a changing the diaphragm

TABLE 8	PROBLEMS, CAUSES AND SOLUTIONS

PROBLEMS		CAUSES			SOLUTIONS

The pump won’t charge		Air suction			Check the suction system
		Adjustment valve closed			Position the lever correctly
		(Command group isn’t at
		zero pressure)
		Valves and/or valve seats			Replace or clean ( * )
		suction and delivery worn
		or dirty

The pump doesn’t reach the set		Valve and/or valve seat			Replace ( * )
pressure		adjustment worn
		Valves and/or valve seats suction			Replace or clean ( * )
		and delivery worn or dirty
		Insufficient rpm			Bring speed up to correct rpm
					always in the field of 350 ÷ 550 rpm.
		The nozzles used are worn or have			Replace
		holes that are too big
		Suction blocked			Clean the cartridge of the
					filter or remove the blockage
Irregular pressure (with impulses)		Valves and/or valve seats			Replace or clean ( * )
		suction and delivery worn
		or dirty
		Air suction			Check the suction system

Excessive vibrations at delivery		Pressure accumulator discharged			Bring the air pressure back up to the right
		or incorrect air pressure			value (see pump handbook) ( * )
Noisiness and the level of the oil		Blocked suction			Check the suction system
has dropped

Water in the oil		Breakage of one or more diaphragms			Replace ( * ) If the replacement isn’t
					done immediately, drain the water out
					of the pump and introduce clean oil
					without water (also used) or diesel to
					stop rust attacking the internalparts
No liquid comes out of the nozzles		Delivery filter dirty			Clean
		Non-drip filters dirty
		Nozzles blocked

NOTE: ( * ) Only specialised technician

20, 55, 40, 50 specifications

Unigreen is a prominent name in the agricultural machinery sector, specializing in high-performance sprayers designed for precision farming and crop protection. Among its range, the Unigreen 20, 40, 55, and 50 models stand out due to their innovative features and advanced technologies, making them ideal choices for farmers seeking efficiency and effectiveness in their spraying operations.

The Unigreen 20 is recognized for its compact design, making it an excellent choice for smaller farms or applications requiring maneuverability in tight spaces. It is equipped with a robust tank and a user-friendly control system that allows operators to monitor and adjust spraying settings on the fly, ensuring optimal application rates and minimizing waste.

Moving up the range, the Unigreen 40 model boasts a larger capacity tank, making it suitable for medium-sized operations. One of its main features is the advanced hydraulic suspension system, which ensures stability and uniform application even on uneven terrain. This model also integrates GPS technology, enabling precision mapping of fields to guarantee that every area receives the appropriate treatment.

The Unigreen 55 further expands on these capabilities with enhanced power and efficiency. It features a high-performance pump system that delivers consistent spraying pressure, allowing for a wider coverage area. The sprayer’s adjustable boom technology is designed to reduce drift and increase accuracy, which is essential in environmentally sensitive areas.

Lastly, the Unigreen 50 combines features from the preceding models and introduces cutting-edge automation. This model includes smart sensors that detect plant health, providing real-time feedback on the most effective solutions to apply. The sprayer is also compatible with precision agriculture technologies, such as variable rate application, which optimizes inputs based on specific field conditions.

Each model from Unigreen is constructed with durability in mind, utilizing high-quality materials to withstand the rigors of agricultural use. The user-centric designs ensure ease of operation and maintenance across the range. With options to suit various farming needs, the Unigreen 20, 40, 55, and 50 models exemplify the convergence of technology and practicality in modern agriculture, making them vital assets for farmers striving for sustainability and productivity in their operations.

Unigreen 55, 40, 20 manual Table of Programmed Maintenance Operation, 50 h 300 h

Models: 20 55 40 50

TABLE OF PROGRAMMED MAINTENANCE

OPERATION

50 h

300 h

PROBLEMS

CAUSES

SOLUTIONS

20, 55, 40, 50 specifications