Hydraulic Systems; General Info; Requirements For Tractor - Hardi NK SB Series Instruction Book

4 - Sprayer Setup

Hydraulic Systems

General Info

Ensure that the snap couplers are clean before connection!
After having operated the boom and the system has been filled with oil, check the tractor's hydraulic oil level and top up, if
necessary.
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DANGER! Test of the hydraulic system should be done very cautiously. There may be air trapped in the system which
can cause violent movements of the boom.
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DANGER! Hydraulic leaks: Never use your fingers to locate a leakage in any part of the hydraulic system. Due to high
pressure, hydraulic oil may penetrate the skin.

Requirements for Tractor

The hydraulic system requires:
• One single-acting outlet for raise and lower of the boom.
• One double-acting outlet for the hydraulic operated boom fold.
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ATTENTION! The hydraulic hoses are marked with arrows to indicate the direction of oil flow.
• The system has a built-in flow regulator that maintains constant speed on hydraulic movements.
• Oil flow between 15 and 80 l/min at a pressure of 200 bar.
• Minimum oil pressure is 180 bar to obtain correct operation. Maximum permissible oil pressure is 210 bar.
• Return flow restriction of the connected tractor must be maximum 15 bar.
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