DESMI PUMPING TECHNOLOGY A/S P a g e | - 35 -Tagholm 19400 Nørresundby - DenmarkPhone.: +45 96 32 81 11Fax : +45 98 17 54 99E-mail: desmi@desmi.comwww.desmi.com11. Before starting the pumpThe pumps are tested and preserved with oil type GOYA 680 transmission oil (Q8) with aviscosity of about 70 cSt. Pumps in versions ”CHD” and ”EPDM” are preserved in the factoryusing vegetable oil. The pump is emptied for oil, but it has not been cleaned for test oil from thefactory.The pump must be cleaned for test oil before starting up the pump if the test oil is notcompatible with the pump liquid. In each individual case it is to be estimated the degree ofcleaning which is deemed necessary. The cleaning should be of such a magnitude that nodamage to humans, animals, materials or pump liquid occurs.Clean the pump for test oil before start-upBefore starting the pump, check: That the pump shaft can be turned around freely That the pump is connected to an explosion-proof motor, if the pump is set up in apotentially explosive atmosphereThat the pump’s and the motor’s name plates are labelled with explosion protection That the pump and motor are aligned precisely – see section entitled: ”Alignment betweenmotor and pump” That the bearings – if they have lubrication nipples – are lubricated That the ball/roller bearings’ maximum service life is observed That the thread of the thermal sensor has not broken off during transportation, handling orinstallation – if the pump is fitted with thermal sensor (applies to ATEX pumps) That the thermal sensor is connected – if the pump is fitted with thermal sensor That all isolating valves in the suction and pressure pipe are fully open, to avoid thepressure being too high and the pump running dry That any by-pass valve is fitted correctly – see section entitled: ”Positioning of valve” That any bypass valve is adjusted to the correct opening pressure – see sectionentitled: ”Setting of bypass valve” That the pump casing is filled with liquid to ensure the ability to self-prime – see sectionentitled: “Before connecting the pipes” That there is no coagulated liquid in the pump or the pipe system – after the last operation –that may cause blockage or breakdown That the necessary monitoring and safety systems are connected and adjusted according tothe operating conditions/instructions in this manual
