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3.2 CHECKING THE CORRECT FUNCTIONING OF ALL MACHINE PARTS
Replace the transportation plug with the ventilation plug (supplied in a plastic bag).
Check the tank level.
Connect the mains electricity supply to the terminal strip in the electrical cabinet.
Make sure that the remote pendant is deactivated and that the manual control is set to either 'C' or 'T'.
Check that the direction of rotation coincides with that indicated by the arrow on the electric motor lid. If the directions do
not!coincide, stop the motor (by pressing the red switch), set the side switch to '0' and swap the two cables around in the
terminal.!Repeat the operation and check that the direction of rotation is now correct.
With manual control pumps, press the black button on the circuit breaker box to start the motor. Check the direction of!rotation as
explained in the previous point.
Practise moving the piston back and forth.
With manual control pumps, when the lever is set to position 'A' or 'P', the cylinder piston moves forward once the hose has filled!
with oil. The piston moves back when the lever is set to position 'B' or 'T'.
After making sure that no one is located in the danger zone, carefully extend the cylinder as far as it will go.
VERY IMPORTANT:
BEFORE DOING THIS, MAKE SURE THAT THE CYLINDER OR HYDRAULIC TOOL IS DESIGNED TO WITHSTAND ALL THE PRESSURE AT
THE END OF ITS STROKE.
The point of the pressure gauge is only subjected to pressure when the remote pendant is activated or the manual control is set to
position 'A' or 'B'.
Use a pressure gauge at this point to check that the internal safety valve is set correctly to 700 bar.
If you wish to check the pressure of an installation without pressing the remote pendant (open centre, 'P' connected to 'T' and
forward and back movements blocked) or with the manual control set to 'C', you should place the pressure gauge and its
corresponding joint in the output of the distributing valve.
If you do not press the remote pendant or the manual valve control is set to 'C', the distributing valve's check valves will maintain
the pressure in the circuit.
If the proposed operating pressure is less than 700 bar, use the external pressure regulator.
Use a spanner to loosen the lock nut and a screwdriver to loosen (anticlockwise – reduces pressure) or tighten (clockwise –
increases pressure) the adjustment screw. Use a pressure gauge to check that the desired operating pressure has been
reached, and then block the adjustment screw using the lock nut to prevent unwanted loosening due to vibrations.
Check for leaks when working under pressure and make sure that the machine and the installation are working correctly in
accordance with the established application.
The above steps should be repeated as many times as necessary, until the operator has become familiar with the working of the
machine.
ALL THESE CHECKS SHOULD BE CARRIED OUT WITHOUT A LOAD. THEIR AIM IS TO ENABLE OPERATORS TO BECOME FAMILIAR WITH
THE WORKING OF THE MACHINE.
3.3 START UP
Place the machine in the working zone in such a way as to ensure maximum stability. You should also make sure that the
operator is sufficiently far away from the danger zone.
The operator should check that no one is located in the danger zone and that the machine is in perfect working order and ready!to
be switched on.
Start the machine and operate according to the established method.
With manual control pumps, set the valve control to position 'C', stop the motor by pressing the red switch in the circuit!breaker
box and block the load mechanically if possible. Resolve the problem before resuming operation.
Once you have finished, check the machine for any possible damage, disassemble it, clean it and store in a safe place.
4. . MAINTENANCE
Make sure that the machine is switched off and not under pressure before carrying out any maintenance operation.
Keep the pump clean and in good condition, especially as regards connections, threads, joints and quick plugs, etc.
Use the tank indicator to monitor the oil level. If necessary, top up through the filling plug, using hydraulic oil.
Electrical connections and their periodic checks should be carried out by fully qualified personnel only. Any loose or damaged cables,
etc. should be repaired or replaced immediately.
If you are working in corrosive or aggressive environments, protect the machine accordingly and clean on a regular basis.
Change the oil in the tank regularly – at least once a year if working in dirty environments and/or if the hoses are connected and
disconnected frequently.
To change the oil, remove the lid and clean both the tank and the filter, using materials that do not leave residue. When
reassembling, use a new tank gasket. Fill the tank with Larzep oil, monitoring the quantity using the level provided.
Do not dump used hydraulic oil. Collect and dispose of it according to the relevant waste disposal regulations.
In the event of a failure or malfunction, all repairs should be carried out by specialist personnel using original spare or replacement
parts.
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