Larzep EE25030-CE, Instruction Manual

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INSTRUCTION MANUAL
Column Press with Electrical Pump "EE25030-CE"
INSTALLING THE HOSES
™ The oil return transparent hose of the security valve(4), it is connected to the hexagon nipple located in the block of the distributor valve. Use the clip to fix
it.
™ The short hose(6) that reaches from the gauge port, it is connected to the “A” port in the distributor valve, by means of the rapid coupler.
™ Assure the perfect connection.
™ The long hose(5), that reaches from the inferior side of the cylinder, it is connected to the “B” port of the distributor valve.
™ Keep clean the rapid couplers in the connection moment.
ELECTRIC CONNECTION
1. Connect the cables of current tap (strip 17) to the network.
2. Connect the cables of current in the motor terminal. (220 V- Δ ) and (380 V-Y).
3. Take care of the voltage indicated in the box of the terminals.
4. Check that the contactor is rated in accordance to the indications labelled in the motor information devices.
5. Assure that the distributor valve position is “C”.
6. Push in the electrical cabinet the position (1), and push for a moment the green button of start.
7. Check for the turn of the motor, it must be in the same sense that is labelled with an arrow in the motor.
8. In opposite case, change the position of two cables between themselves in the terminal and try again. This operation must been done with the equipment
disconnected.
9. If the pump is prime less, (the cylinder advance but do not reach pressure), release with a screwdriver, the purge screw located in the cover, let the air goes
from the circuit., until the cylinder reaches pressure. Once the cylinder is purged, screwing again the screw.
CHECKING THE RIGHT OPERATION OF ALL DEVICES AND MECHANISM
1. Put the distributor valve in ”C” position
2. Put the general selector in position 1.
3. Push the start button for a moment, to check that the motor starts and the sense of the rotation of it.
4. Put the distributor valve in “A” position.
5. Push the green start button in constant way, the piston of the cylinder will advance, check the speed and the stroke.
6. Guide the piston to the end of the stroke and pressure it, checking that there is not oil leaks in the connections, gauge…etc.
7. Put the distributor valve in “C” to check that the pressure it is maintained.
8. Put the distributor valve in “B” position, push the green button of the electrical cabinet, the piston of the cylinder returns.
9. Check the pressure limiter valve’s function, maintaining pushed the green button with all the piston returned. (the oil must go by the transparent hose).
10. Put the distributor valve in “A” position, in order to depressurize the cylinder .
11. Put the distributor valve in ”C” position, and the general selector in 0.
12. Once this test are carried out, the machine is ready for it utilisation.
13. Repeat again this sequence, as necessary as the operator is familiarized with the commands.
START UP
Follow the previous point.
Change of the height of the table.
Once the height of work is decided, and the ring gear of the chains is in the piston:
Descent of the table:
1. Guide the piston from its return position 30-50mm.
2. Assembly the two chains the most tense way it is possible.
3. Return the piston in order to release the supporting pin.
4. Put this supporting pins in the hole immediately inferior.
5. Guide the piston enough for the table to be supported in the pins.
6. Repeat the operation until reaching the wished height.
Elevation of the table:
1. Guide the piston in all its stroke.
2. Assembly the both chains the most tense possible.
3. Return the piston until free the supporting pins.
4. Continue returning the piston until the table exceed the holes immediately superiors.
5. Put the pins, and descent the table until the table is supported by means of the pins.
6. Repeat the operation until reaching the wished height.
REGULATION OF THE MAXIMUM WORKING PRESSURE
™ The maximum pressure that the hydraulic system develops is 700 Kg/cm². An internal limiter valve shoots in the moment that the installation reaches that
pressure.
™
If you want to work with a maximum pressure inferior, the external valve located in the power pack must be regulated.
™ For this operation, unscrew the lock nut that blocks the regulation screw, located in the block of the regulator valve. Turn left the screw to diminish the
pressure, and check the results with the gauge of the press.
™ Once the valve is regulated to wished pressure, block the regulation screw with the lock nut.
VERY IMPORTANT! THE SYSTEM OF POSITIONING OF THE TABLE, IT IS NOT DESIGNED IN
ORDER TO RESIST THE POWER THAT THE CYLINDER IS ABLE, IT IS ONLY FOR POSITION
THE TABLE