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

I:RRFTSMRN°
CAUTION:
Read and Follow
All Safety Rulesand
Operating Instructions
Before FirstUse of
This Product.
Save This Manual For
Future Reference.

112 HP SHALLOW WELL
WATER SYSTEM
• Safety Instructions
• Installation
• Electrical
• Maintenance
• Repair Parts

Sears, Roebuck and Co., Hoffman Estates, IL 60179
PRINTED

U.S.A.

U.S.A.
Form NO. F642-9822

(9/25/98)

INTRODUCTION

CONTENTS
INTRODUCTION/WARRANTY

.....................................................

PUMP PERFORMANCE

..................................................................

MAJOR COMPONENTS

.................................................................

INSTALLATION

2
3

..........................................................................

4-5

ELECTI_CAL ...............................................................................
OPERATION

..................................................................................

MAINTENANCE

........................................................................

7-10

HELPFUL HINTS ..........................................................................

REPAIR PARTS ........................................................................
TROUBLESHOOTING

12-14

GUIDE .....................................................

READ

AND

Please read our instructions
before installing
and using your
Shallow Well Water System. This will help you obtain the full benellts 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 warranty.

Carefully read and follow all safety instructions
ual or on pump.

SAFETY

in this man-

_Thls

is the safety alert symboL When you see tins symbol
on your pump or in this manual, look for one of the following signal words and be alert to the potential for personal injury!
_

warns

about

hazards

sonal injury, death or major property
_
personal

warns about hazards

that will
damage

cause

serious

To avoid risk of serious bodily injury and property damage,
read safety instructions
carefully before installing pump.

Follow local and/or national
when installing pump.

Keep well covered while installing pump to prevent leaves and
other debris from falling into well, contaminating
well and possibly damaging pump.

Protect pump and piping system from freezing. Allowing pump
or water system to freeze could severely damage pump and
voids warranty.

per-

if ignored.

that will or can cause serious

injury, death or major property

damage

personal

about hazards

injury or properly

damage

The word NOTICE indicates special
portant but not related to hazards.
_

Never run pump

that will

or can

and electrical

codes

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.

cause minor

if ignored.
instructions

dry. Running

plumbing

if ignored.

_& CAUTION _warns

INSTRUCTIONS!

pump

which

without

are im-

5. With a new well, test well for purity before
Health Department
for procedure.

water

may cause pump to overheat, damaging seal and possibly causing
burns to persons handling pump. Fill pump with water before starting.

local

[&WARNINGJHazardous
cause death, or start fires.
6. Disconnect
electrical
ing on pump.

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.

use. Consult

power

voltage.
source

Can
before

shock,

burn,

installing or work-

7. Ground pump with a ground wire run from grounding
motor to a grounded lead in the service panel.

lug on

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

_, CAUTION
[
I Motor 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.

manual can cause overheating,
rarity.

possible

fires, and will void war-

TABLE

I - Pump Performance

NOTE:

(In Gallons per Minute)

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

Pumping Depth in Feet

Pump
Model

Description

Suct.

Disch.

Pressure PSi

10'

15'

20'

390.250097

1/2 HP S.W. Jet

1-1/4"

3/4"

7.3

6.2

5.2

4.2

BASIC

TOOLS

AND

MATERIALS

NEEDED

Plastic Pipe Installation
Tools

Materials

Pipe Wrenches

Plastic Pipe and Fittings (as required

to complete

lob).

Screwdriver
Knife or Saw to Cut Plastic Pipe

Teflon Tape (DO NOT use joint compound

on plastic fittings).

Tire Pressure Gauge

Galvanized

Steel Pipe InstaUation

Tools

Materials

Pipe Wrenches

Galvanized

Pipe and Fittings (as required to complete

job).

Screwdriver
Pipe Cutting

and Threading

Tools

Pipe Joint Compound

or Teflon Tape

Tire Pressure Gauge

MAJOR COMPONENTS
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.

AND WHAT

THEY

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

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 example, 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.

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
1, are recommended.

Well Seal
Plastic Pipe

tee and plug as shown in Figure

Furnp Pdming
Plug
"X
To Household
Water System

pressure
Switch
Check Valve

and Strainer
From Well

611 1293

Dug or Cased Well

Figure 2B - Dug or cased well
Figure I - Connections to water system
When installed on a driven
System should have a check

point well, your Shallow Well Water
valve installed as shown in Figure 2A.

[_eck

PUMP/TANK

INSTALLATION

Pump
NOTICE: Use Teflon tape supplied with the pump or Plasto-Jo'mt
Stik t for making all pipe-thread connections
to the pump itself. To
avoid stress-cracking,
do not use pipe joint compounds
on the
pump.

Valve
'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
St_t Drive Pipe

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

Horizontal

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

all piping

Piping from

connected

to the System.

Well to Pump

When the pump is offset more than 25 feet from the well, horizontal 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"

Up to 25 Ft.

25 to 50 Ft.

50 to 200 Ft.

INSTALLATION
Discharge

1. Open faucets

Pipe Sizes

1-1/4"

1-1/2"

Up to 25 Ft.

25 to 100 Ft.

100 to 600 Ft.

from tank and allow pump

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.

Tank

To Check Tank Air Charge

Tank is pre-charged
with 40 pounds per square inch (PSI) air pressure at the factory. Your tank requires an air charge of 30 PSI for
proper operation;
check tank pressure with tire gauge to determine if air charge needs adjustment.
Tank pre-charge
should be
checked annually; see instructions
at right.

if drawdown
(amount of water
nificantly, check as follows:

1
- air expands

Water begins to enter tank - air is compressed
rator as it fills with water.

Pump-up cycle completed
setting of pressure switch.

to pump,

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 automobile tubeless tires.

filling area above vinyl sep-

- air now compressed

power

above sepa-

Water being drawn from tank - compressed
water out of separator,

Separator

completely

empty

tank air force,,

- new cycle ready to begin.

to cut off

Figure 3

ELECTRICAL
Table II Wiring

Chart

Recommended Wire and Fuse Sizes
Distance in Feet from Motor to Meter

Max.

Motor
Horsepower

Volts

I/2

115/230

Load

Amps.
9,4/4.7

sig-

3. If the air pressure is below 30 PSI, add air to the tank. Use an
air compressor
or a portable air storage tank.

per cycle) decreases

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 pressure of the pressure switch (30 PSI).

Tank nearly empty
arator.

available

1. To check air charge in tank, shut off electric
open faucet near tank, and drain completely.

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). If this occurs, reduce 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:

to operate.

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.

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.

furthest

Branch
Fuse*
Rating
Amps

0'
to
100'

101'
to
200'

15/15

14/14

10/14

201'
to
300'

301'
to
400'

401'
to
500'

6/14

6/12

Wire Size
10/14

ELECTRICAL
_k

Disconnect

power

before

working

on pump,

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

1. Pull plug
straight
out from
terminal
board.

Plug in again
with arrow
on plug
pointing to
'115 Volts'.

pressure

switch,

or wiring.

230 Volts or if you have a single voltage motor. Connect power
supply as shown for your type of switch and your supply voltage.

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

motor,

wJree

i-Motor

CONnecthere.
, wires connect here.
230 Volt: Connect 2 hot wires 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

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.

230 Volt to 115 Volt Conversion, Spade Connector Type:
1.Move black wire
from A to LI.

2. Move white wire
with black tracer
from B to A.

-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.

3. Change Complete:
Ground
3few

tt
it

2.t _'.
on the terminal screws.

prevent strain

- Connectthe green (or bare copper) groundwire
to the greengroundscrew.

31870398

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

[ _.WARNING_ Hazardous

voltage.

Can

shock,

burn,

Connection

or kill

Connect
ground
wire before
connecting
power
supply
wires. Use the wire size (including
the ground wire) specified in the wiring
chart. If possible, connect the pump to a separate branch circuit with no other appliances
on it.
[ _.WARNING_
ply line.

WIRING
[_,WARNINGJ

Explosion

hazard.

Do not ground

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.

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.

Connect the ground wire to a grounded lead in a service panel,
to a metal undeeground
water pipe, to a metal well ca_mg at
least ten feet (3M) long, or to a ground electrode provided by
the power company or the hydro authority.

Connect
the power
shown in Figure 4.

to a gas sup-

CONNECTIONS
Fire hazard.

Incorrect

voltage

can cause a fire or

seriously damage the motor and voids the wan_nty.
voltage must be within ± 10% of the motor nameplate

The supply
voltage.

NOTICE: Dual-voltage motors are factory wired for 230 volts. If necessary, reconnect
the motor for 115 volts, as shown. Do not alter
the wiring in single voltage motors.
Install, ground, wire, and maintain
the National Electrical Code (NEC)
(CEC), as applicable,
and with all
apply. Consult your local building

your pump in compliance
with
or the Canadian Electrical Code
local codes and ordinances
that
inspector for code information.

Procedure:

supply

wires

to the pressure

switch

OPERATION
Priming

From 10 to 20 foot depths, you might have to shut off the pump
and repeat steps 1, 2 and 3 several times.

the Pump

NOTICE: To prevent damage to internal
until pump has been filled with water.

parts, do not start motor

If, aRer priming pump
check the following:

To prime pump:
1.

Remove

priming

plug (Figure

1, Page 4).

Fill pump

Replace priming plug, using Teflon tape or plasto-Julnt
plug threads; tighten plug.

Start the pump. Water should be pumped
repeat steps 1, 2 and 3.

with water.

A. Be sure suction

pipe is in the water,

B. Be sure suction

pipe does not leak.

no water

is pumped,

too high (see

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.

If not,

On shallow depths to water (10 feet or less), the pump will
probably prime the first time after following steps 1 through 4
above.

times,

C. Be sure that pump is not trying to lift water
"Piping in the Well', Page 4).

Stik 2on

in 1-2 minutes.

several

z Lake Chemical

Co., Chicago,

Illinois

MAINTENANCE
LubHcafion

4. Disconnect

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

of electric

fore working

shock.

Disconnect

power

be-

on unit.

Pump should be drained whenever
or is in danger of freezing.
1.

DISCONNECT POWER.

Open faucet
ceeding.

and relieve

piping

To avoid
air pressure
has been
ceeding to step 5.

from tank and pump.
or fatalinjm%
l(e sure all
from tank before pro-

serious
released

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

for Winter

_Risk

outside

it is disconnected

all pressure

on system

from service

before

pro-

Disconnect
pressure
switch tube (Key No. 15, Page 12) at
barbed elbow on pressure switch (Key No. 26) and allow tube
to drain.

Unscrew barbed elbow (Key No. 14) from pump body
allow pump to drain. If necessary
to drain completely,
pump.

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.

Be sure to drain any piping that may be cut off from normal
tem drain due to check valve installation.

and
tilt

sys-

Vinyl Bag Replacement

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

Place replacement bag on a clean
Flatten bag and force air out.

Tightly roll bag towards center opening.,

surface

with opening

up.

10.

Before center opening is covered up, force air out of remaining portion of bag. Finish rolling bag.

11.

To make bag eaKter to insert into tank, sprinlde
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.
all wrinkles.

14. Clean center opening

outKtde of bag

You need not remove

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.
[_,WAFtNING] Be
from tank before
this may I_sult in
open tank unless

sure &LL air pz'_su_
has _/1
released
removing
nuts from flange,
Failure to do
serious
or fatal injut_. Do not att_tnpt
to
all pressure
has been relievedl

LAWARNINGJ Risk of electric shock.
fore working
on unit.
1. DISCONNECT POWER TO PUMP.
2.

Disconnect

power

B. Tighten

one nut snug.

C. Tighten

opposite

nut snug.

D. Proceed, tightening

opposite

be-

Drain system as follows:

18.

Stand tank on feet and reconnect

19.

Recharge

20.

Reconnect
(above).

faucet closest to tank.
hose (Key No. 6, Page 14) from tank elbow.

3. Relieve (expel)
cote,

ALL air pressure

in system by removing

Be sure all nuts are

NOTICE: Do not overtighten; you may twist studs off of tank.
If you have a torque wrench, tighten to 85 inch-pounds torque.

A. Open

B. Remove

pairs to a snug fit.

E. Recheck all nuts, using same pattern.
tight and you have a good seal.

valve

tank to proper
hoses

piping.

air pressure

and pressure

(see Page 5).

switch

tube; prime

pump

MAINTENANCE
Air Valve Replacement

Reassembly

1. Follow steps 1 through 5 under
7.

"Vinyl Bag Replacement

2. Cut valve off as close to tank as possible.
tion back into tank.

A. install O-Ring gasket on seal plate (Key Nos. 5 and 3, Page
12).

por-

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.

Push remaining

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.

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.

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
7, to reinstall

14 through 2O under
bag in tank.

"Vinyl Bag Removal_,

D. Replace

2. Tip tank on end, valve down.
3.

Page

Bag Replacement",

disconnected

before

Be careful

not to break valve!

Disassemble
A. Disconnect

pump

shock.

Be sure unit is grounded

attempting

any work on pump

tube from pump

Disassemble

Remove diffuser
Page 12).

pump

screws

per instt'uctions
and impeller
holding

body and allow

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.

(Key Nos. 9 and 7,

diffuser.

C. Place 7/16" open end wrench
D. Turn impeller

above.

as follows

B. Loosen two screws and remove
(Key No. 1, Page 12).

as follows:
switch

A. Remove

power.

B. Remove pressure
pump to drain.

above.

NOTICE: The seal consists of two parts, a rotating member and a
ceramic seat. The surfaces of the seal are easily damaged. Read instructions carefully.
Remove motor as follows:

bag as in-

Your pump is designed for ease in servicing. Should repair or replacement
of the motor or seal be needed, the pump and piping
do not need to be disconnected
or disturbed.
1.

to instructions

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.

Page

DISASSEMBLY AND
ASSEMBLY OF PUMP
and power
motor.

switch tubing and motor wiring.

Removing Motor for Service
and Replacing Shaft Seal

If bag leaks, water will run out of valve. If so, replace
structed above.

I
g WARNING JRisk of electrical

pressure

E. Prime pump according
F. Check for leaks.

Testing for Bag Leakage
1. Follow steps I through 4 tinder'Vinyl
7.

of pump:

_, Page

counterclockwise

motor canopy
on motor

from motor

shaft flat.

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
See Figures

_,_sPOUSHED

SURFACE

OFFLOA_NG SEAL
CARDBOARD WASHER
FURNISHED WITH SEAL

shaft!

5 & 6.

MOTOR FLANGE

)BACK
HALF

CUP SEAL

Figure 7
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

Figure 5
COPPER SEAT

SEAL PLATE INOEX FINS
SMDE IN HERE

FLOATING
SEAT

Figure 8A
MEMBER

Figure 6
MOTOR FLANGE

Place seal plate face down
seat.

SEAL PLATE

on flat surface and tap out ceramic

NOTICEt Do not force out copper insert. If it has moved, leakage
will occur. See section on installing copper insert on Page 10.
5.
6.

Clean seal cavity.
lnstallnew
seal.

Clean polished

Wet outer edge of cup seal with petroleum
soludon.

With finger pressure,
press firmly and squarely into cavity.
Polished face of seat faces inside of pump. If seat will not locate properly, place cardboard washer over polished face and
use piece of 3/4" standard pipe for pressing
purposes.
See
Figure 7.

D.
E.

surface of ceramic

Dispose of cardboard
Clean motor shaft.

washer

seat with clean cloth.
jelly or detergent

INDEX PtNS

Figure 8B

and dean surface of seat.
G.

Apply detergent
member.

solution

Slide rotating member
shoulder.

to inside

diameter

on shaft until rubber

NOTE: Be sure you do not chip or scratch
shoulder or seal will leak!

of rotating seal

drive ring hits shaft
seal face on shaft

MAINTENANCE
I.

SEAL
PLATE

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.

HOLES MUST
LINE UP
DIFFUSER

FACE OF
SEALING WASHER

;HAFT
SHOULDER

RUBBER

%
BE SURE NIBS
ENGAGE NOTCHES

DRIVE RING

Figure II
Installing

Figure 9

Copper

insert

NOTE: If the copper insert (Key No. 4, Page 12) moves or shifts
during seal removal, it should be removed and reinstalled.
Remount diffuser on seal plate. B¢ sure
up as follows (see Figures 10 and 11).
a. Rib next to priming
b. Part number
ten o'clock.

diffuser

hole should be at six o'clock

(N 1-28P) should be between

c. Both mounting
screws
plate. See Figure lO.

must

d. Be sure rubBer pad (Figure
place on top of diffuser.
BE SURE RUBBER PAD
STAYS IN PLACE ON

engage

Remove

copper

insert as shown

in Figure 12. do not deform.

position;

nine o'clock

screw

is right side

holes

and

in seal

10; Key No. 8, Page 12) stays in

TO DISASSEMBLE

BE SURE SCREW
ENGAGES HOLE IN
SEAL PLATE

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-

MOLDED
PART NO.
AT 9:90
O'CLOCK
RIB AT 6 O'CLOCK

portant
behind

that this area be clean so no old Permatex lodges
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.

BE SURE SCREW
ENGAGES HOLE
IN SEAL PLATE
PRIMING HOLE

* "Permalex"

Figure I 0

is a registered trademark

of Permatex

Co. Inc.

MAINTENANCE

I HELPFUL
Cleaning

Shallow Well Jet

To remove debris from venturi

Wipe on small amount of
non-hardening Permatex
on this surface

Figure 13
C. Pull insert into cavity as shown

HINTS

in Figure 14.

or nozzle, proceed

as follows:

1.
2.

Disassemble pump per instructions
on Page 8.
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.

Flush out the debris by running water through the nozzle in
the same direction as the dislodging tool was inserted.

Replace

Reassemble

HELPFUL
How

nozzle and venturi.
per pump

Do not overtighten!

instructions

on Page 8.

HINTS

to Handle

a Gaseous

Well

In some areas well water contains gases which must be allowed
escape before the water is used. This can be done as shown
Figul_ 16.

¢ket

to
in

Gases
rise to
surface

Figure 14
D. Clean out any surplus Permatex from insert
new seal will be located. See Rgure 15.

cavity where

pipe sleeve

Remove
Surplus

Not
to

valve

Scale

Perma_

cap

; re°aPeec_Y'_
Figure

Cleaning

Figure 16
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.

Impeller

Follow steps 1A through
of Pump" on Page 8.

ID under "Disassembly and &ssemhiy

Remove diffuser
under "Removing
on Page 8.

Clean impeller and reassemble
impeller and diffuser per instructions under "Removing Motor for Serivce and Replacing
Shaft Seal" on Page 8.

and impeller
from pump per instructions
Motor for Service and Replacing Shaft Seal"

REPAIR

PARTS

Pump Only
Model 390.250097

28
27,

4
6
8

9
10

26
11
25
24

AVC
Port
21
2O
18
17

I
14

/
12

J
12A

/
12B

REPAIR
Key
No.
1#
1A
1B
1C
1D
2
3*
4
5
6
7
8
9
10
11"*
12
12A
t2B
13t
14t
15
16
17
18
19
20
21
22
23t
24t
25
26
27t
28

Part Number
J218-953C
U 18-1103
U18-1180
U 18-1098
U18-128
C69-2
N203-t2P
J3-2
U9-390
2784
J105-40PF
C35-41
N1-28P
U30-738SS
N176-35PE
N76-35PE
, U9-226
Nt66-5P
WC78-41T
Ut11-212T
U37-670P
J20-18
N76-29P
U30-742SS
N34P-19
N32P-66
U9-201
J104-9F
U43-12ZP
U36-38ZP
C35-5
2781
U36-112ZP
L43-5C

PARTS
Qty.
Used
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
4
1
1
1
1
4
4
1
1
1
1

Description
Motor- 115/230V
Overload
Terminal Board
Contaetor
Governor
Water Slinger
Seal Plate Assembly
Seal Plate Insert
O-Ring
Shaft Seal
Impeller
Rubber Pad
Diffuser
Capssrew #10-16 Hex Head
Pump Body Assembly
Pump Body
O-Ring
Check Valve
Pipe Plug 1/8" NPT
90 ° Hose Barb
PressureSwitch Tube
Gasket
Pump Body Jet Insert
Cap,screw #10-16
Nozzle #45
Venturi
O-Ring
Base Assembly Painted
Lock Washer 3/8"
Nut 3/8" - 16
Rubber Pad
Pressure switch
Locknut 1/2"
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.
t Standard hardware item, may be purchased locally.

REPAIR

PARTS

Tank Only

2433 O596

2
3
4

REPAIR PARTS
Key
No,

Part Number

U231-285-S
U20-7

2
3
4
5
6
7
8
9
• Not illustrated,

U212-160 t
U31-442P
U36-202BT t
U78-770P t
U19-55SS
U74-37X
U78-972P
U78-107PTt
WC78-41T

Qty.
Used

1
1
1
1
6
1
2
1
1
1
1

Description

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

t Standard hardware item, may be purchased

locally.

TROUBLESHOOTING
TROUBLE
k4ctorwill not run

POSSIBLE CAUSES
1. Disconnect switchis off
2. Fuse is blown
3, Startingswitch is defective
4, Wires at motor are loose,
disconnected,or wired incorrectly
5, Motor is wired incorrectly
6. Pressure switchcontacts are dirty

REMEDIES
1. Be sure switch is on
2, Replace fuse
3. Replace startingswitch
4, Refer to instructionson wiring
5, Refer to instructionson wiring
6. Clean by slidingpiece of plain paper between contacts

Motor runs hot and
overload kicks off

"1. Motor is wired incorrectly
2. Voltage is too low

Motor runs but no
water is delivered

"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. Pump cyclestoo frequently

(*Note: Check
prime before looking for other
causes. Unscrew
priming plug and
see if there is water
in priminghole)

GUIDE

3. Jet or impeller is plugged
4. Check valve or foot valve is stuck
in closed position
5. Pipes are frozen

1. Refer to instructions on wiring
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
1. In new installation:
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
pump house
6. Raise foot valve and/or strainerabove well bottom

6. Foot valve and/or strainer are
buried in sand or mud
Pump does not
deliver water to full
capacity (also check
point 3 immediately
above)

1. Water level in well is lower than
estimated
2. Steel piping (if used) is corroded or
limed, causingexcess friction
3. Offset piping is too small in size

Pump pumpswater
but does not shut off

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 well is lower than
estimated

1. Adjustor replace pressure switch

Pump cycles too
frequently

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

1. Check connections, replace pipe fiftings
2. Close faucets or valves
3. Replace foot valve
4. Adjust or replace pressureswitch
5. Disconnect electr_celpower and open faucets untilall
pressureis relieved. Usingautomobiletire pressure
gauge, check air pressure in 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 replace core if necessary

Air spurtsfrom
faucets

1. Pump is picking up prime
2. Leak in suctionside of pump
3. Well is gaseous
4. intermittent over-pumping of well

1. As soon as pump picksup prime, all air will be ejected
2. Check suctionpiping,make sure jointsare not suckinga=l
3. Change installationas described in manual
4. Lower foot valve if possible,otherwiserestrictdischarge
side of pump

1. A deep well jet pump may be needed

(over 20 ft. to water

2. Replace with Plastic Pipe where possible, otherwise with
new steelpipe
3. Use largeroffset piping

2. Close faucets
3, Clean jet or impeller
4. Refer to instructionson wiring
5, Check possibilityof using a deep well jet pump

SEARS
OWNER'S
MANUAL

CRAFTSMAN"
1/2 HP SHALLOW WELL
WATER SYSTEM

Model No.
390.250097

Forthe repairor replacementpartsyouneed
Call7 am- 7 pm,7 daysa week

1-800-366-PART
(1-800-366-7278)

Forin-bornemajorbrandrepair service
Call24 hoursa day,7 daysa week

1-8OO-4-REPAIR
(1-800-473-7247)

The model number 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
• Part Number
• Part Description

Forthelocation of a
SearsRepairServiceCenterIn yourarea
Call24 hoursa day,7 daysa week

1-800-488-1222

ForInformation
onpurchasing
a Sears
MaintenanceAgreement
or to 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.

Source Exif Data:

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File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
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Page Count                      : 16
Page Layout                     : SinglePage
Page Mode                       : UseNone
Producer                        : Goby Monitor Application version 3, 2, 1, 4
Create Date                     : Thu Apr 05 04:49:31 2007
Author                          : 
Title                           : 
Subject                         :

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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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