Residual Risks; Use Of The Shut-Off Valve (Optional).pAg; Adjusting; Repositioning Of The Machine - IRTEC G 4 Manual D’INstruccion De Utilizo Y Manutencion

7.0 RESIDUAL RISKS

Despite IRTEC taking all due precautions in the design and construction stages to eliminate any dangers to operators, some
risks remain unavoidable in the operation of the machine.
1) HOOKING AND CRUSHING RISK between the support vertical rod of the reel and the reel itself when this is
rotating. This risk exists especially during the laying down of the hose.So before starting this operation make sure that
nobody is near the machine and that only authorised persons are in the work area.
2) RISK OF CRUSHING AND TRAPPING BETWEEN PE HOSE AND REEL. No part of the body should be be-
tween the hose and the reel when the machine is in operation. Unauthorised people should have no access to the ma-
chine.
3) RISK OF THE MACHINE OVERTURNING. If the machine is transported on land having a gradient higher than
6°, there are high risks of the machine overturning.
4) RISK OF FLASHOVER.
If the water jet of the rain gun comes accidentally in contact with electric power lines there is high risk of electrical
discharges to the ground through the machine structure. Make sure that in the rain gun radius of action there are no
electric power lines.
5) RISK OF VIOLENT IMPACT WITH THE WATER JET. When the machine starts the water comes out suddenly
and violently from the nozzle. Do not stay in front or near the rain gun.
6) RISK OF VIOLENT IMPACT WITH THE MACHINE END CAPS. Never remove the end caps from the machine
without being sure that there is no pressure in the machine. If the caps are removed when the machine is under pres-
sure there is high risk that they will be ejected violently.
7) RISK OF VIOLENT IMPACT WITH THE HYDRAULIC CIRCUIT OIL. Never use the hydraulic circuit without
having first exhausted the oil pressure through the hand pump or through the spool valve levers.
8) DANGER OF ACCIDENT ON A PUBLIC ROAD. Position the rain gun trolley so that the water jet never goes
into areas thus causing dangers to
persons or property
8.0 USE OF THE SHUT-OFF VALVE (optional)
If the machine is equipped with the slow shut-off valve, proceed as follows:
1)Check that the valve is open by operating the appropriate function of the computer.
2) Check that the cables of the electric pistons are properly connected.
3)Operate the machine as per the instructions manual, press the "stop" button on the computer and check that the valve closes
properly.
4)Press the proper button on the computer to reopen the valve.
8.1 OPERATION SEQUENCE FOR THE SHUT-OFF VALVE ADJUSTING
If the closing speed of the electric piston is too slow or too fast, adjust the proper code into the computer to obtain the desired
speed.
When using machines with shut-off valve installed, pumping systems must be equipped with a cut-off system at high pressure.
If they are not provided with it excessive pressures can be created at the water inlet of the machine or in the pipelines.

8.2 REPOSITIONING OF THE MACHINE

When the machine has stopped irrigating and the valve is closed, the pipeline remains under pressure;
1) Shut the hydrant supply valve off.
2) Open the shut-off valve by means of the computer in order to eliminate the remaining pressure.
3) Disconnect the machine inlet hose and proceed with moving the machine.
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