Goulds Pumps - Pump Express

AssemblyIf removed, replace the motor shaft deflector. Install themotor adapter, with the drain opening DOWN, using thefour hex bolts. Torque bolts to 168 lbs. in. (19 N m).Slide the seal housing assembly onto the motor shaft,seating it fully and squarely against the motor adapter.Using a quality grade O-ring lubricant, lubricate the outerelastomer of the mechanical seal stationary seat. Fullyand squarely install the stationary seat into the seal housing.With a clean, lint free cloth, CAREFULLY wipe theseat face clean of a lubricant or debris. DO NOT damagethe seat face.Using a quality grade O-ring lubricant, lubricate theinner elastomer of the mechanical seal rotary assembly.Fully and squarely install the rotary assembly against thestationary seat.To install impeller, clean shaft and impeller thoroughlywith denatured alcohol and a wire brush to remove curedLoctite from threads. Wait for parts to dry then applyLoctite 7649 primer to threads on shaft and impeller. Allow3-5 minutes for primer to dry. Apply 3 drops of Loctite243 medium strength thread-locker to shaft threadsand 2 drops on impeller threads. Tighten impeller to atorque value of 144 lbs. in. (16 N m).Using a quality grade O-ring lubricant, lubricate and installa new casing O-ring and internal O-ring (1SN only).Slide the back pullout assembly into the pump casingand secure using the eight casing cap screws. Torque thecap screws to 70 lbs. in. (8 N m), using a cross patternsequence to assure the casing is pulled down evenly.With new O-rings installed, install the casing vent anddrain plugs, tightening securely.Assembly is complete.TroubleshootingWARNINGHazardousvoltageSYMPTOMFAILURE TO DISCONNECT ANDLOCKOUT ELECTRICAL POWERBEFORE ATTEMPTING ANY MAIN-TENANCE CAN CAUSE SHOCK,BURNS OR DEATH.Motor Not RunningSee Probable Causes 1 through 5Little or No Liquid DeliveredSee Probable Causes 6 through 13Excessive Power ConsumptionSee Probable Causes 3, 13, 14, 15 and 16Excessive Noise and VibrationSee Probable Causes 3, 6, 7, 8, 10, 12, 14, 16 and 17Probable Causes1. Motor thermal protector tripped2. Open circuit breaker or blown fuse3. Impeller binding4. Motor improperly wired5. Defective motor6. Pump is not primed, air or gases in pumpage7. Discharge, suction plugged or valve closed8. Incorrect rotation (three phase only)9. Low voltage or phase loss10. Impeller worn or plugged11. System head too high12. NPSH Atoo low – Excessive suction lift or losses13. Incorrect impeller diameter14. Discharge head too low – excessive flow rate15. Fluid viscosity, specific gravity too high16. Worn bearing17. Pump, motor or piping loose