Craftsman 390250097 User Manual SHALLOW WELL PUMP Manuals And Guides L9080050

CRAFTSMAN Shallow well pump (has snout) Manual L9080050 CRAFTSMAN Shallow well pump (has snout) Owner's Manual, CRAFTSMAN Shallow well pump (has snout) installation guides

User Manual: Craftsman 390250097 390250097 CRAFTSMAN SHALLOW WELL PUMP - Manuals and Guides View the owners manual for your CRAFTSMAN SHALLOW WELL PUMP #390250097. Home:Plumbing Parts:Craftsman Parts:Craftsman SHALLOW WELL PUMP Manual

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SEARS

OWNER'S

MANUAL

MODELNO.

390.250097

CAUTION:

Read and Follow

All Safety Rulesand

Operating Instructions

Before FirstUse of

This Product.

Save This Manual For

Future Reference.

I:RRFTSMRN°

112 HP SHALLOW WELL

WATER SYSTEM

•Safety Instructions

•Installation

•Electrical

• Maintenance

•Repair Parts

Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.

PRINTED IN U.S.A. Form NO. F642-9822 (9/25/98)

CONTENTS

INTRODUCTION/WARRANTY ..................................................... 2

PUMP PERFORMANCE .................................................................. 3

MAJOR COMPONENTS ................................................................. 3

INSTALLATION .......................................................................... 4-5

ELECTI_CAL ............................................................................... 5_

OPERATION .................................................................................. 7

MAINTENANCE ........................................................................ 7-10

HELPFUL HINTS .......................................................................... 11

REPAIR PARTS ........................................................................ 12-14

TROUBLESHOOTING GUIDE ..................................................... 15

INTRODUCTION

Please read our instructions before installing and using your

Shallow Well Water System. This will help you obtain the full ben-

ellts of the quality and convenience built into this equipment. It

will also help you avoid any needless service expense resulting

from causes beyond our control which are not covered by our war-

ranty.

READ AND FOLLOW SAFETY INSTRUCTIONS!

Carefully read and follow all safety instructions in this man-

ual or on pump.

_Thls is the safety alert symboL When you see tins symbol

on your pump or in this manual, look for one of the follow-

ing signal words and be alert to the potential for personal injury!

_ warns about hazards that will cause serious per-

sonal injury, death or major property damage if ignored.

_ warns about hazards that will or can cause serious

personal injury, death or major property damage if ignored.

_& CAUTION _warns about hazards that will or can cause minor

personal injury or properly damage if ignored.

The word NOTICE indicates special instructions which are im-

portant but not related to hazards.

_ Never run pump dry. Running pump without water

may cause pump to overheat, damaging seal and possibly causing

burns to persons handling pump. Fill pump with water before start-

ing.

L_'WARNING JNever nm pump against closed discharge. To do

so can boll water h_lde pump, causing hazardous pressure in

unit, risk of explosion and possibly scalding persons handling

pump.

_, CAUTION

[IMotor normally operates at high temperature and

will be too hot to touch. It is protected from heat damage during

operation by art automatic internal cutoff switch. Before handling

pump or motor, stop motor and allow to cool for 20 minutes.

1. To avoid risk of serious bodily injury and property damage,

read safety instructions carefully before installing pump.

2. Follow local and/or national plumbing and electrical codes

when installing pump.

3. Keep well covered while installing pump to prevent leaves and

other debris from falling into well, contaminating well and pos-

sibly damaging pump.

4. Protect pump and piping system from freezing. Allowing pump

or water system to freeze could severely damage pump and

voids warranty.

L_'WARNING_To avoid serious injury and equipment

damage, limit system pressure to 100 pounds per square

inch (PSI) or below at all times. Over-pressure can cause

tank blowup; install relief valve capable of passing full

pump volume at 100 PSI.

5. With a new well, test well for purity before use. Consult local

Health Department for procedure.

_ q

[&WARNINGJHazardous voltage. Can shock, burn,

cause death, or start fires.

6. Disconnect electrical power source before installing or work-

ing on pump.

7. Ground pump with a ground wire run from grounding lug on

motor to a grounded lead in the service panel.

8. Line voltage and frequency of electrical power supply must

agree with motor nameplate.

9. Use of fuses or wire smaller than size recommended in owner's

manual can cause overheating, possible fires, and will void war-

rarity.

Pump

Model

390.250097

TABLE I - Pump Performance (In Gallons per Minute)

NOTE: This system is designed for pumping depths of 20 feet or less.

Discharge Pumping Depth in Feet

Description Suct. Disch. Pressure PSi 5' 10' 15' 20'

1/2 HP S.W. Jet 1-1/4" 3/4" 40 7.3 6.2 5.2 4.2

BASIC TOOLS AND MATERIALS NEEDED

Plastic Pipe Installation

Tools

Pipe Wrenches

Screwdriver

Knife or Saw to Cut Plastic Pipe

Tire Pressure Gauge

Materials

Plastic Pipe and Fittings (as required to complete lob).

Teflon Tape (DO NOT use joint compound on plastic fittings).

Galvanized Steel Pipe InstaUation

Tools

Pipe Wrenches

Screwdriver

Pipe Cutting and Threading Tools

Tire Pressure Gauge

Materials

Galvanized Pipe and Fittings (as required to complete job).

Pipe Joint Compound or Teflon Tape

MAJOR COMPONENTS AND WHAT THEY DO

Impeller and Jet

Impeller turns with motor shaft, causing water to fly out from its

rim by centrifugal force. Impeller rotation creates a vacuum which

pulls in more water. Part of the water is diverted back to the jet

where it passes through the nozzle and venturi. This cremes more

vacuum to draw in more water.

In shallow wells (less than 20 feet deep), the vacuum created at the

pump is enough to pull water to the pump. Therefore, for shallow

well use the jet is built into the pump.

Pre-Charged Tank

The tank serves two functions. It provides a reservoir of water

under pressure and maintains a cushion of air pressure to prevent

pipe hammering and possible damage to plumbing components.

When water is drawn off through the house fixtures, the pressure

in the tank is lowered and the pump starts.

Pressure Switch

The pressure switch provides for automatic operation. Pump starts

when pressure drops to 30 pounds and stops when pressure

reaches 50 pounds.

Check Valve or Foot Valve

This pump is equipped with a built-in check valve. Install a check

valve as close to well as possible on well p_mt installations. A

foot valve must he installed in the well on dug or cased wells. See

Figures 2A and 2B (Page 4). For long horizontal pipe runs, install

check valve as close to well as possible (all types of wells).

INSTALLATION

Piping in the Well

The Shallow Well Water System can be installed on a dug well,

cased well or with a driven point. In a dug or cased well, a foot

valve and strainer should be installed for easy priming. It should be

installed five to ten feet below the lowest level to which the water

will drop while the pump is operating (pumping water level). To

keep sediment from clogging the strainer, be sure it is five to ten

feet above the bottom of the well. Before installing the foot valve,

make sure that it works freely.

When u_mg a foot valve, a priming tee and plug as shown in Figure

1, are recommended.

Furnp Pdming

Plug "X

To Household

Water System

pressure

Switch Check Valve

From Well

Figure I - Connections to water system

When installed on adriven point well, your Shallow Well Water

System should have acheck valve installed as shown in Figure 2A.

[_eck Valve

St_t Drive Pipe

_Ddven point

Figure 2A - DHven point

For a pump at sea level mounted directly over the well, be sure the

total lift from the pumping water level to the pump does not ex-

ceed 20 feet. This will be less ffthe pump is offset from the well.

The maximum lift of any pump decreases at the rate of about 1'

less lift for every 1,000 feet of elevation above sea level. For ex-

ample, at Denver, Colorado (Elev. 5,000') the pump loses five feet

of lift. The maximum depth from which it would pump water

would therefore be 15 feet.

Plastic Pipe

Well Seal

and Strainer

611 1293

Dug or Cased Well

Figure 2B - Dug or cased well

PUMP/TANK INSTALLATION

Pump

NOTICE: Use Teflon tape supplied with the pump or Plasto-Jo'mt

Stik tfor making all pipe-thread connections to the pump itself. To

avoid stress-cracking, do not use pipe joint compounds on the

pump.

'lake Chemical Co., Chicago, _Inois

1. Wrap male pipe threads being attached to pump with one or

two layers of Teflon tape. Cover entire threaded portion of

pipe.

2. Do not overtighten threaded fittings in the plastic pump. Be

sure you do not try to tighten joint past thl_ad stop in pump

portt

3. If leaks occur, remove fittings, clean off old tape, rewrap with

two to three layers of tape and remake the connection. If joint

still leaks, replace the fittings (fittings may be under_tzed).

4. Be sure to support all piping connected to the System.

Horizontal Piping from Well to Pump

When the pump is offset more than 25 feet from the well, hori-

zontal suction pipe size should be increased to reduce friction

losses. Never install a suction pipe that is smager than the suction

tapping of the pump.

1-1/4" 1-1/2" 2"

Up to 25 Ft. 25 to 50 Ft. 50 to 200 Ft.

INSTALLATION

Discharge Pipe Sizes

xXrhen the pump is some distance from the house or point of water

use, the discharge pipe size should be increased to reduce pressure

losses caused by friction.

1" 1-1/4" 1-1/2"

Up to 25 Ft. 25 to 100 Ft. 100 to 600 Ft.

Tank

Tank is pre-charged with 40 pounds per square inch (PSI) air pres-

sure at the factory. Your tank requires an air charge of 30 PSI for

proper operation; check tank pressure with tire gauge to deter-

mine if air charge needs adjustment. Tank pre-charge should be

checked annually; see instructions at right.

In areas where the temperature is high for long periods of time, the

tank pre-charge pressure may increase. This may reduce the tank

drawdown (amount of water available per cycle). Ifthis occurs, re-

duce the pre-charge pressure to match the pump cut-in setting of

the pressure switch (normally 30 PSI).

It is necessary to flush all air out of the piping system mad water

reservoir portion of the pre_harged tank. This is required on new

installations, pumps requiring repriming and pumps that have been

disassembled for service. Do this as follows:

1. Open faucets furthest from tank and allow pump to operate.

2, Air in the system will cause a sputtering flow; allow faucets to

run until you have a steady, air free s_.

3. Open and close faucets repeatedly until you are sure all air has

been removed.

4. If stream does not become steady, air may be leaking into the

system; check for leaks in the piping on the suction side of the

pump.

NOTICE: To prevent watedogging, check tank air charge annually.

To Check Tank Air Charge

if drawdown (amount of water available per cycle) decreases sig-

nificantly, check as follows:

1. To check air charge in tank, shut off electric power to pump,

open faucet near tank, and drain completely.

2. At the air valve in top of tank, check air pressure with standard

tire gauge. Air pressure should be the same as the turn on pres-

sure of the pressure switch (30 PSI).

3. If the air pressure is below 30 PSI, add air to the tank. Use an

air compressor or a portable air storage tank.

4. Use soap or liquid detergent to check for air leaks around air

valve. Continuous bubbling indicates a leak. If necessary, install

new core in air valve. This is the same as those used for auto-

mobile tubeless tires.

1. Tank nearly empty - air expands filling area above vinyl sep-

arator.

2. Water begins to enter tank - air is compressed above sepa-

rator as it fills with water.

3. Pump-up cycle completed - air now compressed to cut off

setting of pressure switch.

345

4. Water being drawn from tank -compressed tank air force,,

water out of separator,

5. Separator completely empty - new cycle ready to begin.

Figure 3

Motor

Horsepower

I/2

ELECTRICAL

Table II Wiring Chart -Recommended Wire and Fuse Sizes

Volts

115/230

Max.

Load

Amps.

9,4/4.7

Branch

Fuse*

Rating

Amps

15/15

Distance in Feet from Motor to Meter

0' 101' 201' 301' 401'

to to to to to

100' 200' 300' 400' 500'

Wire Size

14/14 10/14 10/14 6/14 6/12

ELECTRICAL

_k Disconnect power before working on pump, motor, pressure switch, or wiring.

Your Motor Terminal Board (under the motor end cover) and

Pressure Switch look like one of those shown below. Convert to

115 Volts as shown. Do not change motor wiring if line voltage is

230 Volt to tl 5Volt Conversion, Plug-in Type:

1. Pull plug 2. Plug in again

straight with arrow

out from on plug

terminal pointing to

board. '115 Volts'.

230 Volts or if you have a single voltage motor. Connect power

supply as shown for your type of switch and your supply voltage.

i-Motor ,wires connect here.

wJree CONnecthere.

230 Volt: Connect 2 hotwires black and red

here and cap the wh te neutral) wire. t does

not matter which wire goes to which screw,

115 Volt: Connect one hot wire (black or red)

to one of these screws (it doesn't matter

which one). Connect the white (neutral) wire

•to the other screw. Cap any remaining

230 Volt to 115 Volt Conversion, Spade Connector Type:

1.Move black wire 2. Move white wire

from A to LI. with black tracer

from B to A.

2.t _'.

3. Change Complete:

Ground

3few

Clamp the power cable to prevent strain

on the terminal screws.

Connect the green (or bare copper) ground wire

to the green ground screw.

Motor wires connect here.

-Power supply wires connect here.

230 Volt: Connect 2 hot wires (black and red

here and cap the wh te neutra) w re. t does

not matter which wire goes to which screw,

115 Volt: Connect one hot wire (black or red)

to one of these screws (it doesn't matter

which one). Connect the white (neutral) wire

to the other screw. Cap any remaining

. black or red wires.

prevent strain

on the terminal screws.

- Connectthegreen (or barecopper) groundwire

to thegreengroundscrew. 31870398

Figure 4: Motor wiring connections through Pressure Switch. Match motor voltage to line voltage.

[_.WARNING_ Hazardous voltage. Can shock, burn, or kill

Connect ground wire before connecting power supply

wires. Use the wire size (including the ground wire) speci-

fied in the wiring chart. If possible, connect the pump to asep-

arate branch circuit with no other appliances on it.

[_.WARNING_ Explosion hazard. Do not ground to a gas sup-

ply line.

WIRING CONNECTIONS

[_,WARNINGJ Fire hazard. Incorrect voltage can cause a fire or

seriously damage the motor and voids the wan_nty. The supply

voltage must be within ± 10% of the motor nameplate voltage.

NOTICE: Dual-voltage motors are factory wired for 230 volts. If nec-

essary, reconnect the motor for 115 volts, as shown. Do not alter

the wiring in single voltage motors.

Install, ground, wire, and maintain your pump in compliance with

the National Electrical Code (NEC) or the Canadian Electrical Code

(CEC), as applicable, and with all local codes and ordinances that

apply. Consult your local building inspector for code information.

Connection Procedure:

1. Connect the ground vdre first as shown in Figure 4_ The

ground wire must be a sold copper wife at least as large as the

power supply wires.

2. There must be a sofid metal connection between the pressure

switch and the motor for motor grounding protection. If the

pressure switch is not connected to the motor, connect the

green ground screw in the switch to the green ground screw

under the motor end cover. Use a solid copper wire at least as

large as the power supply wires.

3. Connect the ground wire to a grounded lead in a service panel,

to a metal undeeground water pipe, to ametal well ca_mg at

least ten feet (3M) long, or to a ground electrode provided by

the power company or the hydro authority.

4. Connect the power supply wires to the pressure switch as

shown in Figure 4.

OPERATION

Priming the Pump

NOTICE: To prevent damage to internal parts, do not start motor

until pump has been filled with water.

To prime pump:

1. Remove priming plug (Figure 1, Page 4).

2. Fill pump with water.

3. Replace priming plug, using Teflon tape or plasto-Julnt Stik2on

plug threads; tighten plug.

4. Start the pump. Water should be pumped in 1-2 minutes. If not,

repeat steps 1, 2 and 3.

On shallow depths to water (10 feet or less), the pump will

probably prime the first time after following steps 1 through 4

above.

From 10 to 20 foot depths, you might have to shut off the pump

and repeat steps 1, 2 and 3 several times.

If, aRer priming pump several times, no water is pumped,

check the following:

A. Be sure suction pipe is in the water,

B. Be sure suction pipe does not leak.

C. Be sure that pump is not trying to lift water too high (see

"Piping in the Well', Page 4).

D. As long as foot valve and check valve function correctly and

suction pipe does not develop leaks, pump should not need

reprinting in normal service.

z Lake Chemical Co., Chicago, Illinois

MAINTENANCE

LubHcafion

It is not necessary to lubricate the pump or its motor. The motor

bearings are lubricated for life. The mechanical shaft seal in the

pump is water lubricated and serf-adjusting.

Draining for Winter

_Risk of electric shock. Disconnect power be-

fore working on unit.

Pump should be drained whenever it is disconnected from service

or is in danger of freezing.

1. DISCONNECT POWER.

2. Open faucet and relieve all pressure on system before pro-

ceeding.

3. Disconnect pressure switch tube (Key No. 15, Page 12) at

barbed elbow on pressure switch (Key No. 26) and allow tube

to drain.

4. Unscrew barbed elbow (Key No. 14) from pump body and

allow pump to drain. If necessary to drain completely, tilt

pump.

5. Remove priming plug to vent pump; disconnect hose (Key No.

6, Page 14) at tank end and drain pressure tank and all piping

to a point below the frost line.

6. Be sure to drain any piping that may be cut off from normal sys-

tem drain due to check valve installation.

Vinyl Bag Replacement

[_,WAFtNING] Be sure &LL air pz'_su_ has _/1 released

from tank before removing nuts from flange, Failure to do

this may I_sult in serious or fatal injut_. Do not att_tnpt to

open tank unless all pressure has been relievedl

LAWARNINGJ Risk of electric shock. Disconnect power be-

fore working on unit.

1. DISCONNECT POWER TO PUMP.

2. Drain system as follows:

A. Open faucet closest to tank.

B. Remove hose (Key No. 6, Page 14) from tank elbow.

3. Relieve (expel) ALL air pressure in system by removing valve

cote,

4. Disconnect outside piping from tank and pump.

To avoid serious or fatalinjm% l(e sure all

air pressure has been released from tank before pro-

ceeding to step 5.

5. Remove nuts from inlet flange (Key No. 2, Page 14). Tap inlet

flange to break seal. Remove flange.

6. Wherever convenient, hold bag with pliers and cut with slu-

gle-edge razor blade or sharp knife. Bag will not come out in

one piece. Continue pulling and cutting until bag is removed.

7. Clean and dry inside of tank.

8. Place replacement bag on a clean surface with opening up.

Flatten bag and force air out.

9. Tightly roll bag towards center opening.,

10. Before center opening is covered up, force air out of remain-

ing portion of bag. Finish rolling bag.

11. To make bag eaKter to insert into tank, sprinlde outKtde of bag

with talcum powder.

12. Being careful nut to break valve, stand tank on end. Push tightly

rolled bag into tank.

13. Reach into hag and push out sidewalls. You need not remove

all wrinkles.

14. Clean center opening ring on bag and lip on tank.

15. Pull ring on bag through tank opening and fit over tankllp, BE

SURE it seats properly in groove on tank lip.

16, Clean sealing surface of inlet flange and place on studs.

17, NOTICE: Tighten nuts as follows:

A. Hand tighten all nuts.

B. Tighten one nut snug.

C. Tighten opposite nut snug.

D. Proceed, tightening opposite pairs to a snug fit.

E. Recheck all nuts, using same pattern. Be sure all nuts are

tight and you have a good seal.

NOTICE: Do not overtighten; you may twist studs off of tank.

If you have a torque wrench, tighten to 85 inch-pounds torque.

18. Stand tank on feet and reconnect piping.

19. Recharge tank to proper air pressure (see Page 5).

20. Reconnect hoses and pressure switch tube; prime pump

(above).

MAINTENANCE

Air Valve Replacement

1. Follow steps 1 through 5 under "Vinyl Bag Replacement _,Page

2. Cut valve off as close to tank as possible. Push remaining por-

tion back into tank.

3. Tip tank on end and BE SURE all water is drained from bag.

4. Carefully remove bag ring from lip on tank opening and push

bag ring back into tank; reach in around it and remove cut off

portion of valve from tank.

5. Wipe a thin film of soapy solution on replacement valve and

from inside tank insert in hole in top of tank.

6. Pull valve through hole with pliers or a valve tool (available at

your local filling station or Automotive Center).

7. Follow steps 14 through 2O under "Vinyl Bag Removal_, Page

7, to reinstall bag in tank.

Testing for Bag Leakage

1. Follow steps I through 4 tinder'Vinyl Bag Replacement", Page

2. Tip tank on end, valve down. Be careful not to break valve!

3. If bag leaks, water will run out of valve. If so, replace bag as in-

structed above.

DISASSEMBLY AND

ASSEMBLY OF PUMP

gJRisk of electrical shock. Be sure unit is grounded

WARNING

and power disconnected before attempting any work on pump or

motor.

Your pump is designed for ease in servicing. Should repair or re-

placement of the motor or seal be needed, the pump and piping

do not need to be disconnected or disturbed.

1. Disassemble pump as follows:

A. Disconnect power.

B. Remove pressure switch tube from pump body and allow

pump to drain.

C. Remove four hexnuts and lockwashers (Key Nos. 24 and

23, Page 12) which hold the pump body to the motor.

D. Remove motor, seal plate, impeller, rubber pad and diffuser

(Key Nos. 1, 3, 7, g and 9, Palle 12) as a unit. You may have

to pry gently with two screwdrivers between the motor

flange and the pump body to separate pump and motor.

Reassembly of pump:

A. install O-Ring gasket on seal plate (Key Nos. 5 and 3, Page

12).

B. Pick up a small amoutu of petroleum jelly on one finger and

spread evenly over seal plate and venturi O-Ring gasket for

lubrication during reassembly. Be careful not to nick or

tear O-Ring.

C. Replace motor onto pump body; be sure rubber pad (Key

No. 8, Page 12) stays in place on top of diffuser. Remount

base on lower studs. Tighten four hexnuts and lockwashers

snugly (3545 inch-lbs, torque). Do not overtl_ghten.

D. Replace pressure switch tubing and motor wiring.

E. Prime pump according to instructions above.

F. Check for leaks.

Removing Motor for Service

and Replacing Shaft Seal

If it is necessary to separate motor and seal plate, always replace

the shaft seal. We suggest you purchase this item, UIO96A, and

have it on hand for future use.

NOTICE: The seal consists of two parts, a rotating member and a

ceramic seat. The surfaces of the seal are easily damaged. Read in-

structions carefully.

Remove motor as follows:

1. Disassemble pump per instt'uctions above.

2. Remove diffuser and impeller as follows (Key Nos. 9 and 7,

Page 12).

A. Remove screws holding diffuser.

B. Loosen two screws and remove motor canopy from motor

(Key No. 1, Page 12).

C. Place 7/16" open end wrench on motor shaft flat.

D. Turn impeller counterclockwise when facing it.

MAINTENANCE

3. Remove seal plate from motor by inserting two screwdrivers

between the seal plate and the motor flange. Pry seal plate off

motor flange. This will force rotating portion of seal off shaft.

NOTE: Be sure you do not scratch shaft!

See Figures 5 & 6.

MOTOR FLANGE

)BACK

HALF

_,_sPOUSHED SURFACE

OFFLOA_NG SEAL

CARDBOARD WASHER

FURNISHED WITH SEAL

CUP SEAL

Figure 7

Figure 5

COPPER SEAT

FLOATING

SEAT

Figure 6

MEMBER

4. Place seal plate face down on flat surface and tap out ceramic

seat.

NOTICEt Do not force out copper insert. If it has moved, leakage

will occur. See section on installing copper insert on Page 10.

5. Clean seal cavity.

6. lnstallnew seal.

A. Clean polished surface of ceramic seat with clean cloth.

B. Wet outer edge of cup seal with petroleum jelly or detergent

soludon.

C. With finger pressure, press firmly and squarely into cavity.

Polished face of seat faces inside of pump. If seat will not lo-

cate properly, place cardboard washer over polished face and

use piece of 3/4" standard pipe for pressing purposes. See

Figure 7.

D. Dispose of cardboard washer and dean surface of seat.

E. Clean motor shaft.

F. Reassemble seal plate to motor flange, BE SURE it is tight side

up: index pins should be down; seal plate is marked at top. See

Figures gA and 8B.

TOp OF MOTOR FLANGE

SEAL PLATE INOEX FINS

SMDE IN HERE

Figure 8A

MOTOR FLANGE SEAL PLATE

INDEX PtNS

Figure 8B

G. Apply detergent solution to inside diameter of rotating seal

member.

H. Slide rotating member on shaft until rubber drive ring hits shaft

shoulder.

NOTE: Be sure you do not chip or scratch seal face on shaft

shoulder or seal will leak!

MAINTENANCE

I. Screw impeger on shaft (clockwise) while holding shafi with

7/16" open end wrench on shaft flats. This will automatically

locate seal in place. See Figure 9.

FACE OF

SEALING WASHER

SEAL

PLATE HOLES MUST

LINE UP

DIFFUSER

;HAFT

SHOULDER

RUBBER DRIVE RING

Figure 9

Remount diffuser on seal plate. B¢ sure diffuser is right side

up as follows (see Figures 10 and 11).

a. Rib next to priming hole should be at six o'clock position;

b. Part number (N 1-28P) should be between nine o'clock and

ten o'clock.

c. Both mounting screws must engage screw holes in seal

plate. See Figure lO.

d. Be sure rubBer pad (Figure 10; Key No. 8, Page 12) stays in

place on top of diffuser.

BE SURE RUBBER PAD

STAYS IN PLACE ON BE SURE SCREW

ENGAGES HOLE IN

SEAL PLATE

MOLDED

PART NO.

AT 9:90 BE SURE SCREW

O'CLOCK ENGAGES HOLE

IN SEAL PLATE

RIB AT 6 O'CLOCK

Figure I 0

PRIMING HOLE

BE SURE NIBS

ENGAGE NOTCHES

Figure II

Installing Copper insert

NOTE: If the copper insert (Key No. 4, Page 12) moves or shifts

during seal removal, it should be removed and reinstalled.

1. Remove copper insert as shown in Figure 12. do not deform.

TO DISASSEMBLE

Figure 12

2. Replace copper insert:

A. Clean off surplus Permatex* from around insert cavity. Be

careful not to scratch or mark the machined bore. It is im-

portant that this area be clean so no old Permatex lodges

behind the new insert and causes improper seating.

B. Place a small amount of No. 2 non-h_ening Permatex on

surface of insert as shown. Smooth out with finger. See

Figure 13.

* "Permalex" is aregistered trademark of Permatex Co. Inc.

MAINTENANCE IHELPFUL HINTS

Wipe on small amount of

non-hardening Permatex

on this surface

Figure 13

C. Pull insert into cavity as shown in Figure 14.

¢ket

Figure 14

Cleaning Shallow Well Jet

To remove debris from venturi or nozzle, proceed as follows:

1. Disassemble pump per instructions on Page 8.

2. Turn venturi counterclockwise and remove it. The nozzle is

now exposed. Remove it using a 5/8" hex socket wrench with

extension. Turn counterclockwise. If socket wrench is not

available, insert an ice pick or Kmlllar pointed tool carefully into

the nozzle. This will dislodge debris.

3. Flush out the debris by running water through the nozzle in

the same direction as the dislodging tool was inserted.

4. Replace nozzle and venturi. Do not overtighten!

5. Reassemble per pump instructions on Page 8.

HELPFUL HINTS

How to Handle a Gaseous Well

In some areas well water contains gases which must be allowed to

escape before the water is used. This can be done as shown in

Figul_ 16.

Gases

rise to

surface

D. Clean out any surplus Permatex from insert cavity where

new seal will be located. See Rgure 15.

Remove

Surplus

Perma_

; re°aPeec_Y'_

Figure 15

Cleaning Impeller

1. Follow steps 1A through ID under "Disassembly and &ssemhiy

of Pump" on Page 8.

2. Remove diffuser and impeller from pump per instructions

under "Removing Motor for Service and Replacing Shaft Seal"

on Page 8.

3. Clean impeller and reassemble impeller and diffuser per in-

structions under "Removing Motor for Serivce and Replacing

Shaft Seal" on Page 8.

Figure 16

pipe sleeve

Not

to valve

Scale

cap

A good way of delivering gas-free water is to suspend a pipe, closed

at the bottom and open at the top, surrounding the suction pipe.

Since the gases rise in the well casing, the water sucked down

through the pipe and into the suction pipe is free of gas. This type

of well must be vented to the outMde of any enclosure.

REPAIR PARTS

Pump Only

Model 390.250097

1A 1C

27,

24 23 22

18 17

AVC

Port

12 J

12A /

12B

REPAIR PARTS

Key Qty.

No. Part Number Used Description

1# J218-953C 1Motor-115/230V

1A U18-1103 1 Overload

1B U18-1180 1 Terminal Board

1C U18-1098 1 Contaetor

1D U18-128 1 Governor

2 C69-2 1 Water Slinger

3* N203-t2P 1 Seal Plate Assembly

4 J3-2 1 Seal Plate Insert

5 U9-390 1 O-Ring

62784 1Shaft Seal

7 J105-40PF 1Impeller

8 C35-41 1 Rubber Pad

9 N1-28P 1Diffuser

10 U30-738SS 2 Capssrew #10-16 Hex Head

11"* N176-35PE 1 Pump Body Assembly

12 N76-35PE 1 Pump Body

12A ,U9-226 1 O-Ring

t2B Nt66-5P 1 Check Valve

13t WC78-41T 1Pipe Plug 1/8"NPT

14t Ut11-212T 1 90°Hose Barb

15 U37-670P 1 PressureSwitchTube

16 J20-18 1 Gasket

17 N76-29P 1 Pump BodyJet Insert

18 U30-742SS 4 Cap,screw #10-16

19 N34P-19 1 Nozzle #45

20 N32P-66 1 Venturi

21 U9-201 1 O-Ring

22 J104-9F 1 Base AssemblyPainted

23t U43-12ZP 4Lock Washer 3/8"

24t U36-38ZP 4 Nut 3/8" - 16

25 C35-5 1 Rubber Pad

26 2781 1 Pressure switch

27tU36-112ZP 1 Locknut1/2"

28 L43-5C 1 Connector 1/2"

#For repairor service to motors,always give the motor model numberand

any other data found on the motor model plate,

* IncludesKey Nos. 4 and 5.

** Includes Key Nos. 12, 12A, 12B, and 16 through21.

tStandard hardware item, may be purchased locally.

REPAIR PARTS

Tank Only

2433 O596 /

REPAIR PARTS

Key Qty.

No, Part Number Used Description

U231-285-S

U20-7

U212-160 t

U31-442P

U36-202BT t

U78-770P t

U19-55SS

U74-37X

U78-972P

U78-107PTt

WC78-41T

Tank Assembly (Includes Diaphragm, Valve, Nuts, & Inlet Flange)

Bag - Vinyl

Air Valve with Cap

Inlet Flange

Nut 5/16-18 Hex

Elbow 3/4" MPT x 1"Insert

Clamp

Hose - 1" x 23"

Discharge Tee with Barb

1/2" x 1/8" NPT Reducer Bushing

1/8" NPT Pipe Plug

• Not illustrated, t Standard hardware item, may be purchased locally.

TROUBLESHOOTING GUIDE

TROUBLE POSSIBLE CAUSES REMEDIES

k4ctorwill not run 1. Disconnectswitchis off 1. Be sure switchis on

2. Fuse is blown 2, Replace fuse

3, Startingswitchis defective 3. Replace startingswitch

4, Wires at motor are loose, 4, Refer to instructionson wiring

disconnected,or wired incorrectly

5, Motor iswired incorrectly 5, Refer to instructionsonwiring

6. Pressure switchcontacts are dirty 6. Clean by slidingpiece of plain paper between contacts

Motor runs hot and "1. Motor iswired incorrectly 1. Refer to instructions on wiring

overload kicks off 2. Voltage is too low 2. Check with power company, install heavier wiring

if wire size is too small. See wiring instructions

3. See section below on too frequent cycling

Motor runs but no 1. In new installation:

water is delivered

(*Note: Check

prime before look-

ing for other

causes. Unscrew

priming plug and

see if there is water

in priminghole)

Pump does not

deliver water to full

capacity (also check

point 3immediately

above)

Pump pumpswater

but does not shutoff

Pump cycles too

frequently

3. Pump cyclestoo frequently

"1. Pump in a new installation did

not pick up prime through:

a. Improper priming

b. Air leaks

c. Leakingfoot valve

*2, Pump has lostits prime through:

a. Air leaks

b. Water level below suction of pump

3. Jet or impeller is plugged

4. Check valve orfoot valve is stuck

in closed position

5. Pipes are frozen

6. Foot valve and/or strainer are

buried in sand or mud

1. Water level in well is lowerthan

estimated

2. Steel piping(if used) is corroded or

limed,causingexcess friction

3. Offset pipingis too small insize

1. Pressure switchis out of adjustment

or contactsare =frozen"

2. Faucets have been left open

3. Jet or impeller is clogged

4. Motor is wired incorrectly

5. Water level in wellis lower than

estimated

1. Pipes leak

2. Faucets or valves are open

3. Foot valve leaks

4. Pressureswitch is out of adjustment

5. Air chargetoo lowin

Captive Air_ Tank

Airspurtsfrom 1. Pump is picking up prime

faucets 2. Leak insuctionside of pump

3. Well is gaseous

4. intermittent over-pumping of well

a. Re-prime accordingto instructions

b. Check all connectionson suctionline and jet

c. Replace foot valve

2. In installation already in use:

a. Check all connections on suction line, jet and shaft seal

b, Lower suction line into water and re-pdme. If receding

water level in a shallowwell operation exceeds

suctionlift, a deep well pump is needed

3. Clean jet or impeller according to instructioos

4. Replace check valve or foot valve

5. Thaw pipes. Bury pipes below frost line. Heat pit or

pumphouse

6. Raise foot valve and/or strainerabove well bottom

1. Adeep well jet pump may be needed (over 20 ft. to water

2. Replace with Plastic Pipewhere possible, otherwise with

new steelpipe

3. Use largeroffset piping

1. Adjustor replace pressureswitch

2. Closefaucets

3, Clean jet or impeller

4. Refer to instructionson wiring

5, Check possibilityof using a deep welljet pump

1. Check connections, replacepipe fiftings

2. Closefaucets orvalves

3. Replace footvalve

4. Adjustor replace pressureswitch

5. Disconnectelectr_celpower and open faucets untilall

pressureis relieved. Usingautomobiletire pressure

gauge, check airpressurein tank at the valve stem

located at top of tank. If lessthan 30 pounds,pump air

intotank from outside source,until 30 poundspressure

is reached. Check air valve for leaks, usingsoapy

solution,and replacecoreif necessary

1. As soonas pump picksup prime,all airwillbe ejected

2. Check suctionpiping,make surejointsare not suckinga=l

3. Change installationas described in manual

4. Lower foot valve if possible,otherwiserestrictdischarge

side of pump

SEARS

OWNER'S

MANUAL

Model No.

390.250097

The modelnumber of

your Shallow Well Water

System will be found on

the pump body i

When requesting service

or ordering parts, always

give the following

information:

•Produd Type

• Model Number

•PartNumber

•PartDescription

CRAFTSMAN"

1/2 HP SHALLOW WELL

WATER SYSTEM

Forthe repairorreplacementpartsyouneed

Call7 am- 7 pm,7 daysaweek

1-800-366-PART

(1-800-366-7278)

Forin-bornemajorbrandrepairservice

Call24 hoursa day,7 daysaweek

1-8OO-4-REPAIR

(1-800-473-7247)

Forthelocation of a

SearsRepairServiceCenterInyourarea

Call24hoursa day,7 daysaweek

1-800-488-1222

ForInformationonpurchasingaSears

MaintenanceAgreementorto inquire

aboutanexistingAgreement

call9 am- 5 pro,Monday-Saturday

1-800-827-6655

SEARS

th'lt#_.11;L"ltttJril##

America'eFlepaJr_Lsts

Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.

Craftsman 390250097 User Manual SHALLOW WELL PUMP Manuals And Guides L9080050

CRAFTSMAN Shallow well pump (has snout) Manual L9080050 CRAFTSMAN Shallow well pump (has snout) Owner's Manual, CRAFTSMAN Shallow well pump (has snout) installation guides

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