D1d.1 Pages 1-10 Dated 4-10-06 Type SL & NCC.pmd - Paco Pumps

PACOD1d.17/05Supercedes 1/90PUMPS• A motor will operate satisfactorily with a voltagevariation not exceeding 10% above or below therating specified on the motor nameplate. Voltagesabove these limits will cause heavy magneticsatuaration of the motor winiding and indicate highamperage.• Being operated by generator, the power supplyshould not exceed 5% above or below the motorfrequency (Hz) rating, for proper performance.C. PUMP SHUTDOWN• Cut power to motor(s) or allow low level control toshut unit down.• If a unit is shut down and the possibility of freezingexists, disconnect the discharge line and takenecessary precautions to prevent freezing withinthe sump.III. MAINTENANCEA. MOTOR LUBRICATION• If the motor is not equipped with grease plugs orgrease fittings at its ends (check under the topcanopy) it has “sealed bearings”, and does notrequire periodic lubrication.• If the motor has provision for lubrication of itsbearings (grease plugs or grease fittings) followlubrication instructions furnished with motors.• If lubrication instructions do not accompany motor,following tables give frequency of greasing andrecommended types of grease for motor bearings.RECOMMENDED FREQUENCY OF LUBRICATIONMOTOR OPERATING CONDITIONSHP STANDARD SEVERE EXTREME1/3 7-1/2 3 yrs. 1 yr. 6 mos.10-40 1-3 yrs. 1/2 1 yr. 3 mos.50 & UP 1 yr. 6 mos. 3 mos.TABLE 5aB. PUMP THRUST BEARING LUBRICATION• These bearings are integrally sealed and lubricatedfor life. No further lubrication required.Standard Operating Conditions: 8 hours a day,clean atmosphere, motor not overloaded, 100° F. max.ambient temperature. Severe Operating Conditions:24 hours a day, 100° F. to 150° F. ambienttemperature; dirty or dusty. Extreme OperatingConditions: Very heavy dust or dirt.RECOMMENDED TYPES OF GREASE FORBALL BEARINGSManufacturerLubricantExxonAndok BStandard Oil of California Chevron BRB2Shell Oil co.Alvania EP2Texaco, Inc. Regal Starfak #2Mobil Oil Co. Mobilux Grease #2TABLE 6aC. PUMP INTERMEDIATE AND LOWERBEARING LUBRICATION• Self-lubricating intermediate bearing bushings arenormally furnished. For those pumps furnishedwith grease lines to intertmediate bearings, inject alubricant selected from Table IIIb into grease-linefitting (s). Lubricate daily for continuously operatingpumps to once a month for intermittent pumpoperation.• Lower bearing normally is lubricated by the liquidpumped. If lower bearing has been speciallyordered with a grease line, lubricate per C-1.• If pump bearings have been specially ordered withclean water lubrication, connect the lines, abovesump cover to a clean water supply. If to bemanually operated open valve prior to starting unit.Close valve after unit is shut down. On automaticoperation, insert a solenoid valve, of same voltageas motor, into clean water supply line, and connectto motor or motor starter to open when motor startsand close when motor stops. Fresh water supplyshall be a minimum of 10 PSIG above pumpdischarge pressure at 1-2 GPM.• IMPORTANT: Most codes do not permit crossconnectionof water supply for a sump pumpbearing to a potable water supply. A PACO WaterSeal Unit should be installed. This is a small pumping unit with tank and water float valve, providingan air gap between the water source and the wateruse. It can be wired to start and stop with the pumpmotor.6