Hydraulic System - Hardi COMMANDER DELTA FORCE Instruction Book

Three-Point Linkage
If the sprayer is fixed to the tractor's three-point linkage or lower links, ensure sufficient side locking of the tractor lower links
before driving off.
Before driving off, secure the operating lever of the three-point hydraulic system against the unintentional raising or
lowering of the connected sprayer.
Carry out a visual check that the upper and lower link pins are firmly fixed with linchpins against unintentional release.
Braking and Steering
Braking distance is increased and steering capabilities are influenced, both when the sprayer's tank is empty and even more
so with a full tank.
Ensure that the tractor has sufficient steering and braking power. If necessary, use front weights to the tractor in a stable
position.
Any sprayers and front/rear weights connected to the tractor influence the driving behaviour and the steering and braking
power of the tractor.
The front tractor axle must always be loaded with at least 20% of the tractor's empty weight, in order to ensure sufficient
steering power.
Always fix the front or rear weights to the intended fixing points according to regulations.
Comply with the maximum load for the connected sprayer and the approved axle and drawbar loads for the tractor.
The tractor must guarantee the prescribed braking distance for the loaded vehicle combination (tractor plus connected
sprayer).
Before driving off, always switch off independent wheel braking on the tractor (lock the pedals).
When turning corners with the sprayer connected, take the broad load and balance weight of the sprayer into account. Slow
down as needed to avoid tilting or overturning of the vehicle, especially on sloping roads.

Hydraulic System

The hydraulic system is operating under a high pressure.
Ensure that the hydraulic hose lines are connected correctly.
When connecting the hydraulic hose lines, ensure that the hydraulic system is depressurized on both the sprayer and tractor
sides.
The operator controls in the tractor used for hydraulic and electrical movements of components must stay unlocked, e.g. for
folding, swivelling and pushing movements. The movement must stop automatically when you release the appropriate
control. This does not apply to equipment movements that:
• Are continuous
• Are automatically controlled
• Require a floating position or pressed position to function.
Before working on the hydraulic system:
• Lower the spray boom to its lowest position or into the transport position
• Turn off / depressurize the hydraulic system
• Turn off the tractor engine
• Engage the parking brake
• Remove the ignition key.
Have the hydraulic hose lines checked at least once during a calender year by an expert to ensure that they are in safe working
order.
Replace the hydraulic hose lines if they are damaged or worn, which is when:
• It is leaking
2 - General Safety Instructions
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