Fybroc Division series 1500 horizontal pumps - MHz Electronics, Inc

LUBRICATIONOil Bath LubricationWhen the power-frame is the oil bath lubrication type(standard construction), the bearing frame housing isNOT lubricated at the Fybroc factory. LubricantMUST be added to the bearing frame prior to pumpstart-up.A high-quality turbine type non-detergent oil, with rustand oxidation inhibitors should be used. For themajority of operating conditions, the oil temperatureshould run between 50°F (10°C) and 180°F(82°C). Inthis range, an oil of 300 SSU viscosity at 100°F(38°C), (approximately SAE-20) should be used.Remove the oil fill plug (Item 19) and fill the bearingframewith oil through the oil fill port. Add oil until theoil level is centered in the sight glass (Item 19G).There is an arrow in the casting to mark the center ofthe sight glass.WARNING: DO NOT FILL BEARING FRAMETHROUGH THE BREATHER CONNECTION AS OVERFILLING IS POSSIBLE, RESULTING IN OIL LEAKAGEAND EXCESSIVE BEARING TEMPERATURES.Approximate Bearing Frame Oil Capacity:Group I – 3/4 pintGroup II – 2 1/2 pintsGroup III – 6 pintsSTART-UP AND OPERATING PROCEDURESflush liquid must be supplied to the seal prior to starting.Proper flow for external flushing will vary from1/4 to 1/2 GPM at a pressure of 15 to 25 PSI abovethe stuffing box pressure.Packed Stuffing BoxThis method of sealing the pump requires an externalflush line for the intake of flush liquid. The flush linemust supply liquid to the packing prior to operation.The packing gland must be adjusted at start-up of thepump for proper operation. When the pump is putinto operation, the gland should be considerablyloose. After the pump is operating, the gland shouldbe slowly tightened to reduce the amount of leakage.Each time the packing is tightened the amount offlush liquid will decrease, however as the packingwarms up it will swell slowing the flow of flush liquideven more. A slight flow of liquid from the stuffing boxis necessary to provide lubrication and cooling(approximately 40 - 60 drops per minute after thepacking has run in).WARNING: PACKING CONTAINING FLUOROCAR-BON COMPOUNDS MUST BE CONSTANTLYCHECKED WHEN FIRST STARTED AS IT HAS ATENDENCY TO RAPIDLY EXPAND FROM TEM-PERATURE CHANGES RESULTING IN BLOCK-AGE OF THE FLUSH LIQUID, FAILURE TO DO SOMAY RESULT IN DAMAGE TO THE PUMP.Re-Greasable BearingsWhen the power-frame assembly is there-greasable bearing type, the bearings areinitially lubricated at the factory.Greased For Life BearingsWhen the power-frame assembly is supplied withgreased for life bearings there is no action required.SEAL FLUSHINGMechanical SealDo not operate the pump without liquid to themechanical seal. Depending on the flush arrangementof the pump, the fluid to the seal may be pipedfrom the pump discharge externally or internally, orfrom an external clean source. If the pump is fittedwith an internal or bypass flush arrangement, thenthe pump must be flooded with liquid prior to startingto ensure that the mechanical seal is lubricated. If thepump is equipped for an external flush system, then7PRIMINGSuction valve must be fully open. The pump casingand suction pipe must always be full of liquid beforethe pump is started. Centerline discharge designs areself-venting therefore the discharge valve should beopened to release any air trapped in the pump andthen left slightly open at start-up.STARTINGPrior to starting, turn pump shaft by hand to besure rotating elements are free. If it rubs or binds:A) Check alignment.B) Check for piping strains on casing flanges,or other loads on casing.C) Check impeller clearance. (See impelleradjustment).With pump rotating elements free, replacecoupling guard.