Model 3656/3756

Wiring and GroundingInstall, ground and wire accordingto local and National Electrical CodeRequirements.Install an all leg electrical powerdisconnect switch near the pump.Disconnect and lockout electricalpower before installing or servicingthe pump.Electrical supply MUST matchpump’s nameplate specifications. Incorrectvoltage can cause fire, damagemotor and void the warranty.Motors without built-in protection MUST be providedwith contactors and thermal overloads for single phasemotors, or starters with heaters for three phase motors.See motor nameplate.WARNINGHazardous voltagecan shock, burn orcause death.• Use only copper wire to motor and ground. The groundwire MUST be at least as large as the wire to the motor.Wires should be color coded for ease of maintenance.• Follow motor manufacturer’s wiring diagram on the motornameplate or terminal cover carefully.WARNINGHazardousvoltageRotationFAILURE TO PERMANENTLYGROUND THE PUMP, MOTOR ANDCONTROLS BEFORE CONNECTINGTO ELECTRICAL POWER CAN CAUSESHOCK, BURNS OR DEATH.NOTICE: INCORRECT ROTATION MAY CAUSEDAMAGE TO THE PUMP AND VOIDSTHE WARRANTY.• Correct rotation is right-hand, CLOCKWISE when viewedfrom the motor end. For frame mounted units, switch poweron and off quickly to observe rotation. On close coupledunits, remove motor end plug or cover to observe rotation.• To reverse three phase motor rotation, interchange any twopower supply leads.OperationWARNINGHazardous machinerycan cause personalinjury or death.WARNINGHazardous voltagecan shock, burn orcause death.DO NOT OPERATE FRAMEMOUNTED OR SAE UNITS WITHOUTSAFETY GUARDS IN PLACE ORSEVERE PERSONAL INJURY MAYRESULT.SPLASHING OR IMMERSING OPENDRIP PROOF MOTORS IN FLUIDCAN CAUSE FIRE, SHOCK, BURNS ORDEATH.WARNINGExtreme heat cancause personal injuryor property damage.OPERATION AT OR NEAR ZEROFLOW CAN CAUSE EXTREME HEAT,PERSONAL INJURY OR PROPERTYDAMAGE.NOTICE: NO NOT RUN PUMP DRY OR SEALDAMAGE WILL RESULT.• After stabilizing the system at normal operating conditions,check the piping. If necessary, adjust the pipe supports.• On frame-mounted units, coupling alignment may havechanged due to the temperature differential between pumpand motor. Recheck alignment following procedures andhazard warnings in “COUPLING ALIGNMENT” sectionof this manual.MaintenanceWARNINGHazardous voltagecan shock, burn orcause death.CAUTIONHazardous pressurecan cause personalinjury or propertydamage.WARNINGHazardous fluids cancause personal injuryor property damage.CLOSE-COUPLED UNITSFAILURE TO DISCONNECT ANDLOCKOUT ELECTRICAL POWERBEFORE ATTEMPTING ANYMAINTENANCE CAN CAUSE SHOCK,BURNS OR DEATH.FAILURE TO RELIEVE SYSTEMPRESSURE AND DRAIN SYSTEMBEFORE ATTEMPTING ANYMAINTENANCE CAN CAUSEPROPERTY DAMAGE, PERSONALINJURY OR DEATH.IF PIPING HAZARDOUS OR TOXICFLUIDS, SYSTEM MUST BE FLUSHEDPRIOR TO PERFORMING SERVICE.• Bearings are located in and are part of the motor. For lubricationinformation, refer to motor manufacturer’s instructions.FRAME-MOUNTED UNITS• Model 3756 S-group has greased for life bearings.No regreasing is possible or necessary.• Model 3756 M or L-group bearing frame and SAE drivebearing frame should be regreased every 2,000 hours orat a three month interval, whichever occurs first. Use a #2sodium or lithium based grease. Fill until grease comes out ofrelief fittings, or lip seals, then wipe off excess.• Follow motor or engine and coupling manufacturer’s lubricationinstructions.• Recheck alignment.