Craftsman 390.2514 Owner's Manual

SERVICEMAINTAINING YOUR PUMPLubricationIt is not necessary to lubricate the pump or its motor. The motorbearings are lubricated for life. The mechanical shaft seal in thepump is water lubricated and self-adjusting.Draining for WinterWhen the pump is to be disconnected from service, or is in dan-ger of freezing, it must be drained. The pump has a dmincockwhich must be opened. Remove the priming plug to vent thepump. Drain the pressure tank. Drain all piping to a point belowthe freezing hne.To drain an air volume control (AVC), remove the tubing Turn theAVC upside down. This will permit any water to drain into tank.Disassembly and Assembly of PumpThe Hydroglass ®Pump is designed for ease in servicing and main-tenance.1. Disassemble pump as follows:A Disconnect power.B. Open faucet to relieve pressure.C. Drain pump by opening draincock. Remove pressure switchmWmg from fitting on top of pump.D. Remove damp, Key No. 10, Page 11.E. Remove pump base mounting bolts. Motor assembly andback half assembly of pump can be pulled away from fronthaft.F. Remove O-Rings.2. Reassembly of pump.A. Clean O-Rings and O-Ring grooves.B. Lubricate O-Rings with petroleum jelly, and place in grooves.C. Slide pump halves together.D. Clean inside of clamp. Place clamp around pump halves.Alternately tighten clamp screw and tap clamp around out-side with plastic mallet. This will insure proper seating ofO-Ring and clamp.E. Assemble base mounting bolts. Connect pressure switch tub-ing and close draincock.F. Prime pump and turn on power.REMOVING MOTOR FOR SERVICE ANDREPLACING SHAFT SEALflit is necessary to remove motor, always replace the shaft seal. Wesuggest you purchase this item, U109-6A, and have it on hand forfuture use.NOTICE: The seal consists of two parts, a rotating member and aceramic seat. The surfaces of the seal are easily damaged. Read in-structions carefully.Remove motor as follows:1. Disassemble pump per instructions above.2. Remove diffuser and impeller as follows (Key Nos. 7 and 8,Page 11).A. Remove screws holding diffuser.B. Loosen two screws and remove motor canopy.C. if motor has capacitor, partially unscrew capacitor clamp andmove capacitor to one side.i 1! _ikWARNINQ ] Risk of electrical shock. Do not touch ca-pacitor terminals with body" or any metal object.D. Hold motor shaft with a 7/16" wrench on the shaft flats.E. Turn impeller counterclockwise when facing it.3. Remove pump back half from motor by unscrewing four (4)nuts. Pry back half off motor by inserting two (2) screwdriversbetween the back pump haft and the motor flange. This willforce rotating portion of seal off shafx. See Figure 10.Figure I 047501944. Place back half of pump on flat surface and tap out ceramic seat.See Figure 11.5. Clean seal cavity.6. Install new seal.A. Clean polished surface of ceramic seat with clean cloth.B. Wet outer edge of O-Ring with detergent solution.8