Sears 390.262401, 390.262501, 390.262601 User Manual

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PRINTED IN U S A

"HYDRO-GLASS"®

SELF-PRIMING

CENTRIFUGAL PUMP

* Installation
o Operation

® Repair Parts

Sears, Roebuck and Co., Chicago, III. 60684 U.S.A.

F642-7985

Carefully r_r_._._., safety instructions in this

manual _ _'_"

_,._ This ig tl-" _ .... ,=bol. When you see this

symbol,my-\ -_---- .;,=smanual, look for one of

the follf_w H'..,"_z_ ..... _dbe alert to the potential

for permm,'_ :_'-:-

_ =",-_K.._-...... _sabout hazards that will

cause s_ t,_,_-_=--_........ y, death or major property

damag_ If ,_'\'_=-_
[jI,WARNIN_, t_:_r_=_r.,_rns about hazards that

can calms' ._>°-_-;..... ._I injury, death or major

properly ,t_'_- - _ ....

III, CAU1 I*'_N _.._.L---_,_.,_,.ns about hazards that will

or can cnl _' '_--- :--_-_. ,njury or property damage
if ignore, I

The word NOTL_ ;_'_>._ _pecial instructions which
are imp(_ I_u_,-_-;=c _ to hazards.

CONTENTS

Safety/Introduction ............................ 2

Warranty ..................................... 3

Installation .................................. 4-6

Operation ..................................... 7

Maintenance ................................. 10

Troubleshooting/Pump Performance ........... 11

Repair Parts .............................. 12-13

INTRODUCTION

Please take a few minutes to read our instructions
before you install and use your pump. This will help

you obtain the full benefits from this pump. It will also

help you avoid any needless service costs that result

from causes we cannot control and cannot cover in

our warranty.

_._., Safety

, kwAHNINC-

.... Wire motor for correct

,I_ voltage. See "Electrical"

and motornameplate.

Groundmotorbefore

,_-_connectingto power

sectionofthis manual

supply.

Meet National Electrical

d_

Hazardou_ wfll_O e-

Can shock, lit.n, or
cause dealh

Ground puml _I_h_e . ,_ in this manual when

_:onnectinc! h_ p,_\_er i

_upply. _j power lines.

Make worksh_q _ _'hildprc'4 _,_# padlocks and master
r_witches; rel_t_ _\'_ _hlrter t_%,£

_lk Code and local codes for

all wiring.

Follow wiring instructions

I connecting motor to

General Safety

WARNING

Hazardouspressure!
Donot runpump

against closeddischarge,
Releaseall pressureon

systembeforeworking on
anycomponent.

Pump is designed as a lawn sprinkler only. To avoid
heat build-up, over pressure hazard and possible
injury, do not use in a pressure tank (domestic
water) system. Do not use as a booster pump;
pressurized suction may cause pump body to
explode.

Do not allow pump or piping system to freeze.
Freezing can damage pump and pipe, may lead to
injury from equipment failure, and will void warranty.

Pump water only with this pump.
Periodically inspect pump and system components.

Wear safety glasses when working on pumps.

Keep work area clean, uncluttered and well lighted;
store properly all unused tools and equipment.

Keep visitors at a safe distance from the work areas.

Before You

USE NEW PIPE FOR BEST:RESULTS, FROM

CLEAN FLOW!

Figure 1--No Dirt or Scale in Suction Pipe

WELL

I"-'11,,,__

Install Your Pump

PIPE JOINT COMPOUND WILL

DAMAGE PLASTIC.

NO AIR LEAKS IN SUCTION PIPE. #

/ / / / i ///////////////zz_lZl_''""_'__f,,_. .,

IF AIR FLOWS _ / _ f K -

WATER WON'T -._ \ "_._

USE TEFLON TAPE.

Figure 4--Suction Pipe Must Not Leak

,_,

NOTICE: Well must not be more than 20' depth to
water.

Figure 2--Foot Valve Must Work Freely

NO SAGS :-:!i "::

SAGSALLOW AIR POCKETS

1. Long runs and many fittings increase friction and
reduce flow. Locate pump as close to well as
possible: use as few elbows and fittings as possible.

2. Be sure well is clear of sand. Sand will plug the
pump and void the warranty.

3. Protect pump and all piping from freezing. Freezing
will split pipe, damage pump and void the warranty.
Check locally for frost protection requirements

IF AIR POC_

(usually pipe must be 12" below frost line and pump
must be insulated).

4. Be sure all pipes and foot valve are clean and in
good shape.

KEEP PIPE STRAIGHT AND ANGLED UP TO PUMP.

5. No air pockets in suction pipe.

6. No leaks in suction pipe. Use Teflon tape or Plasto-
Joint Stik to seal pipe joints.

7. Unions installed near pump and well will aid in
servicing. Leave room to use wrenches.

8. I_kWARNINGI Pump body may explode if used asa
booster pump. DO NOT use in a booster applica-

Figure 3--No Air Pockets in Suction Pipe

tion.

FULL ONE YEAR WARRANTY ON PUMPS

For one year from the date of purchase, Sears will repair or replace this pump, free of charge, if defective in material or workmanship.

LIMITED WARRANTY ON SEARS HYDRO-GLASS® PUMPS

After one year and through two years from the date of purchase, Sears will furnish, free of charge, a replacement part for any defective
part. You pay for labor.

This warranty does not cover repairs or replacement parts necessary because of abuse or negligence including failure to install, adjust
and operate this pump according to the instructions in the owners manual.

LIMITATION OF LIABILITY

SEARS WILL NOT BE LIABLE FOR LOSS OR DAMAGE TO PROPERTY OR ANY INCIDENTAL OR CONSEQUENTIAL LOSS OR
EXPENSE FROM PROPERTY DAMAGE DUE DIRECTLY OR INDIRECTLY FROM THE USE OF THIS PRODUCT.

Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not
apply to you.

WARRANTY SERVICE IS AVAILABLE BY SIMPLY CONTACTING THE NEAREST SEARS SERVICE CENTER/DEPARTMENT IN THE
UNITED STATES. This warranty applies only while the product is in use in the United States.

This warranty gives you specific legal rights, and you may also hav e other rights which vary from state to state.
Sears, Roebuck and Co., DepL 731CR-W, Sears Tower, Chicago, IL 60684

Well Pipe Installation

PRIMING PLUG _ CHECK

PRIMING TEE _VALVE

SURFACE WATER SOURCE

Pump suction size: 11/2"NPT

Pump discharge size: 11/2"NP

SUCTIONJ

PIPE

DING WATER I I

fl STEEL

-P4HI -- LEVEL I I

I ] (PUMPOFF) [ I

I I II DRAWDOWNWATER I I

(PUMP ON) coD#/VlEN G

I III f EI -WEL,

_1 @ST 5 FEET _ POINT

II DRIVEN POINT

Figure 6--Cased/Dug Well

Installation

NOTICE: Use the installation method below which
matches your well type.

CASED WELL INSTALLATION

1.

Inspect foot valve to be sure it works freely. Inspect
strainer to be sure it is clean.

2

Connect foot valve and strainer to the first length of
suction pipe and lower pipe into well. Add sections

of pipe as needed, using Teflon tape on male
threads. Be sure that all suction pipe is leakproof or
pump will lose prime and fail to pump. Install foot

valve 10 to 20 feet below the lowest level to which
water will drop while pump is operating (pumping

water level). Your well driller can furnish this
information.

.

To prevent sand and sediment from entering the
pumping system, the foot valve/strainer should be

at least 5 feet above the bottom of the well.

4. When the proper depth is reached, install a sanitary
well seal over the pipe and in the well casing.
Tighten the bolts to seal the casing.

5. When using a foot valve, a priming tee and plug as
shown in Figure 6 are recommended.

DUG WELL INSTALLATION
Same as cased well installation.

DRIVEN POINT INSTALLATION

1. Connect the suction pipe to the drive point as

illustrated in Figure 7. Keep horizontal pipe run as
short as possible. Use Teflon tape on male pipe
threads. Multple well points may be necessary to

provide sufficient water to pump.

Figure 7--Driven Point

Installation

VALVE "- . ""

!ALVE __"

Figure 5--Match Pump to Water Source

--- PRIME HERE

TO

SERVICE

SERVICE

Figure 8--Multiple Discharge

2. Install a check valve in horizontal pipe. Flow arrow
on check valve must point toward pump.

HORIZONTAL PIPING FROM WELL TO PUMP

1. Never install asuction pipe that is smaller than the
suction port of the pump.

2. To aid priming on well point installations, install a
line check valve as shown in Figure 7. Be sure
check valve flow arrow points toward pump.

DISCHARGE PIPE SIZES

1.

If increasing discharge pipe size, install reducer in
pump discharge port. Do not increase pipe size by
stages.

.

When the pump is set away from the points of water

use, the discharge pipe size should be increased to
reduce pressure losses caused by friction•

e Up to 100' run: Same size as pump discharge

port•

• 100' to 300' run: Increase one pipe size.

• 300' to 600' run: Increase two pipe sizes.

LAWN SPRINKLING APPLICATION

This pump is designed for lawn sprinkling. It is
designed to deliver plenty of water at full sprinkler

pressure. It can pump from a pond, cistern or well
points.

Pump discharge can be divided to supply two (2) or
more sprinkler systems. A suggested multiple dis-
charge to service is shown in Figure 8.

Do not use in a pressure tank or booster pump
application.

TO

Pump/Piping Installation

Figure 9--Bolt Pump Down

PIPE JOINT COMPOUND WILL

DAMAGE PLASTIC.

NO AIR LEAKS IN SUCTION PIPE. "_.'(: ,

'W--)

WATER WON'T _ \ _ _"

/l!ll!//l///(l!!!//!/I/P / * -,'{[

USE TEFLON TAPE.

Figure 11--Use Teflon tape or Plasto-Joint Stik on

pipe joints and connections to pump.

Figure 10--Independently Support All Piping

Attached to Pump

DON'T HIT

THREAD STO_S _

W BODY

HAND TIGHT PLUS 11/2TURNS WITH WRENCH.

Figure 12--Don't overtighten!

DON'T

OVERT!GHZEN _,_

PUMP INSTALLATION

NOTICE: Use Teflon tape supplied with the pump for
making all threaded connections to the pump itself. Do
not use pipe joint compounds on the pump: they can
react with the plastic in the pump components,

1. Bolt pump to solid, level foundation.

2. Support all piping connected to the pump.

3. Wrap 11/2to two layers of Teflon tape clockwise (as
you face end of pipe)on all male threads being
attached to pump.

4. Tighten joints hand tight plus 1Vz turns. Do not
overtighten.

NOTICE: Install pump as close to well head as
possible. Long piping runs and many fittings create

friction and reduce flow.

NOTICE: For long horizontal pipe runs, install a
priming tee between check valve and well head as

shown in Figure 6. For driven point installations, install
a check valve as shown in Figure 7. Be sure check

valve flow arrow points toward pump.
Use schedule 80 or iron pipe. See "Well Pipe Installa-

tion" for more information.