MAC C275A, Руководство пользователя

Страница: 27 / 40

info@mac-srl.it
27
00_Manutenzione-05 200203
GBR
WARNINGS FOR THE HYDRAULIC COMPONENTS MAINTENANCE
HYDRAULIC CONNECTIONS REALIZED WITH RIGID PIPES
Use cold drawn steel tubes without welds, annealed copper tubes, high pressure hydraulic PVC pipes.
• For dimensions up to diameter 32 (DN32) use tubes following DIN2391.
• For dimensions starting from diameter 40 (DIN40) and pressures up to 160 Bar, use tubes following DIN2448.
To calculate the diameter and thickness of the tubes considering the maximum pressure and capacity.
Comply with the values below:
• Fluid speed in the delivery pipes: 3-6 mt/s
• Fluid speed in the return pipes: 2-3 mt/s
• Fluid speed in the suction pipes: 0,5 mt/s
HYDRAULIC CONNECTIONS REALIZED WITH FLEXIBLE PIPES
Strictly respect manufacture indications relate to the operating pressure, the compatibility with the fl uid and the
installation and maintenance regulations.
The joints must be chosen according to the operating pressure and the pipes diameter:
• For joints up to 1” ½ is recommended to use three cutting ring fi tting, with curb to weld and seal with O-Ring
DIN2353.
• The connections must be realized with fl ange if the joint is more than 1” ½ (SAE 3000 – SAE 6000).
CHECKS FOR THE FIRST START OF THE PRODUCT
• Control that all the circuit components are installed and ready for the use.
• Control that the pipes are correctly connected by checking the tightening of the joints so as to avoid damages and
fl uid leaks.
• Before to proceed with the tank fi lling, check that it is internally clean. Regarding the cleaning, use vacuum for
liquids and solids and non-fi lamented mops. Not to use degreaser or solvents for the internal cleaning.
• The tank fi lling with the operating fl uid must be carried out only through the specifi c loading cap.
• Make sure that the fl uid is the same prescribed and listed in the “recommended fl uids” table.
• Filter the fl uid before to put it in the tank, because even a new fl uid may contain polluting particles.
FIRST START OF THE PRODUCT
• Open the faucets on the pumps aspiration.
• Reset the settings of the pressure regulating valves by turning the regulating screws in counter-clockwise.
• Make sure that the circuit is free of air and the cycle sequences are correct.
• Make sure that there aren’t leaks toward outwards and that all the pipes are correctly connected.
• Carry out the pressure and fl ow calibrations indicated in the diagram by blocking them.
• Pay specifi c attention to the noise during the functioning.
• In the fi rst hours of operation, control the fl uid level in the tank and check if there are leaks.
• After the fi rst 100 hours of operation, check the cleaning and the temperatures.
• Check the maintenance sheets to decide how often replace the fl uid (table n°2).