Some general considerations should bemade on the hydraulic system, in which the pumpmust be fitted. Special attention shall be devoted to hydraulic system design and assembly, especially to intake, delivery and return pipes and position of system parts (valves, filters, tanks, heat exchangers and accumulators). Proper safety devices and reliable instruments to avoid fluid turbulence, especially in return pipe to the tank, and prevent air, water and foreign bodies from entering into the systemare of major importance. It is also very important to equip the hydraulic systemwith a proper filtering unit. Before starting the systemon a continuous basis, we suggest to adopt some simple precautions: » Check for the direction of rotation of the pump to be consistent with the drive shaft of the primemover. » Check for the proper alignment of pump shaft andmotor shaft: it is necessary that the connection does not induce axial or radial loads. » Protect drive shaft seal during pump painting. Check if contact area between seal ring and shaft is clean: dust could provoke quicker wear and leakage. » Remove all dirt, chips and all foreign bodies from flanges connecting inlet and delivery ports. » Ensure that intake and return pipes are always below fluid level and as far fromeach other as possible. — Install the pump below head, if possible. » Fill the pump with fluid, and turn it by hand. » At first startup, set pressure limiting valves at min. value possible. » Avoid lower rotation speed thanmin. allowed with pressure higher than P1. » Do not start the systemat low temperatures under load conditions or after long stops (always avoid or limit load starting for pump longer life. Start the system for a fewminutes and turn on all components; bleed air off the circuit its proper filling. » Check fluid level in the tank after loading all components. » At last, gradually increase pressure, continuously check fluid and moving parts temperature, check rotation speed until you reach set operating values that shall be within the limits indicated in this catalogue. Low Noise, Low Pulsation FTP Gear Pump Installation Notes 13 www.jbj.co.uk/FTP-gear-pumps.html #DriveLineHarmony
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