smv MULTI-LIFT SYSTEM, Инструкция по эксплуатации

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SYSTEM START UP
Once the system has been started up, check the exact functioning of all the command switches and the calibration of the
adjustable valves, using the pressure gauge outlet. If not specified when ordered, the pressure gauge plug should be
inserted to complete the system. In this case, it should be inserted taking the signal next to the valve that is being
checked.
If it is necessary to regulate the pressure relief valve, be extremely careful not to screw the register beyond the
calibration limit of the spring.
SCREWING THE PRESSURE RELIEF VALVE TO THE LIMIT SWITCH WILL CAUSE SERIOUS
DAMAGE TO ALL THE SYSTEM COMPONENTS
(pump breakage and risk of tubes and collectors bursting);
We remind you that safety regulations in force specify that the pressure relief valve of the power pack must be lead
sealed to avoid tampering with the pre-established calibration. We invite you, therefore, to carry out lead sealing of the
pressure relief valve if the power pack is not delivered with the seal already in place

Warning
The Guarantee does not apply to products that have been supplied with the pressure relief valve sealed and sent
back with the seal removed
During the filling phase, ensure that the oil level in the tank is not affected by blow by (if necessary, top up the level).

Warning
Check that the tank size is correct.
When the system is first switched on, the air contained in the circuit must be bled to avoid the formation of foam in the
tank and any unwanted and uncontrolled movement of the working parts;
After carrying out testing a few times, check the level and the state of the oil in the tank (check that there is no foam
present) and the tightness of various fittings (check for the presence of any blow by and eliminate).
Actuators must be connected with tubes that have a diameter that corresponds to or is larger than the connection inlet of
the power pack. As a rule, adhere to the following fluid speed parameters inside the tubes:
delivery: 4=6 m/s , return: 1.5=3 m/s . Particularly with hydraulic power packs, which have small displacement pumps
(05 power unit), it is necessary, in the start up phase, to opt for priming of the pump by momentarily loosening the
check cap and, if necessary, the pressure relief valve.
The temperature that tanks and motors can reach (especially in direct current), in many cases, go beyond the “Burns
threashold”, as defined by the UNI EN 563 standard; because “the reduction of the surfaces temperature” (UNI EN 563,
appendix “C”) cannot be pondered as a technical solution, the user must evaluate protective measures (screens or
barriers), warning signals and individual protective measures (gloves).