Pentair STA-RITE DSS3HG User manual

OWNER’S MANUAL
Self-Priming Horizontal Three
and Four StagePumps
© 2013 Pentair, Ltd. All Rights Reserved. S682 (Rev. 01/28/13)
293 WRIGHT STREET, DELAVAN, WI 53115 WWW.STA-RITE.COM
PH: 888-782-7483
Installation/Operation/Parts
For further operating, installation, or maintenance assistance:
Call 1-888-782-7483
DSS3HG, DSS3HG3T,
DSS4HG, DSS4HG3T

Safety 2
Important Safety Instructions
SAVE THESE INSTRUCTIONS - This manual contains
important instructions that should be followed during
installation, operation, and maintenance of the product.
Save this manual for future reference.
This is the safety alert symbol. When you see this
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!
indicates a hazard which, if not avoided, will
result in death or serious injury.
indicates a hazard which, if not avoided, could
result in death or serious injury.
indicates a hazard which, if not avoided, could
result in minor or moderate injury.
NOTICE addresses practices not related to personal injury.
Carefully read and follow all safety instructions in this
manual and on pump.
Keep safety labels in good condition.
Replace missing or damaged safety labels.
Electrical Safety
Hazardous voltage. Follow these rules to avoid
potential harm:
• Wiremotorforcorrectvoltage.See“Electrical”
section of this manual and motor nameplate.
• Groundmotorbeforeconnectingtopowersupply.
• MeetNationalElectricalCode,CanadianElectrical
Code, and local codes for all wiring.
• Followwiringinstructionsinthismanualwhen
connecting motor to power lines.
• Makeworkshopschildproof;usepadlocksand
masterswitches;removestarterkeys.
Risk of burns. Do not touch an operating
motor.Motorscanoperateathightemperatures.To
avoid burns when servicing pump, allow it to cool for
20minutes after shut-down before handling.
California Proposition 65 Warning
This product and related accessories contain
chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm.
General Safety
To avoid heat built-up in pump, 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 at all times when working on pumps.
Keepworkareaclean,unclutteredandproperlylighted;
store properly all unused tools and equipment.
Keep visitors at a safe distance from the work areas.
Maximuminletpressure ..........................30 psi
Maximumoperatingpressure .....................130 psi
Maximumliquidtemperature ......................120° F
Maximummotorstartsperhour .......................15
WARNING
Hazardous pressure!
Do not run pump against
closed discharge.
Release all pressure on
system before working on any
component.
WARNING
Hazardous voltage.
Can shock, burn, or cause
death.
Groundpumpbefore
connecting to power supply.

Warranty 3
Limited Warranty
STA-RITEwarrantstotheoriginalconsumerpurchaser(“Purchaser”or“You”)oftheproductslistedbelow,thattheywillbefree
from defects in material and workmanship for the Warranty Period shown below.
Product Warranty Period
Water Systems Products — jet pumps, small centrifugal pumps,
submersible pumps and related accessories
whichever occurs first:
12 months from date of original installation,
or 18 months from date of manufacture
Pro-Source™ Composite Tanks 5 years from date of original installation
Pro-Source™ Steel Pressure Tanks 5 years from date of original installation
Pro-Source™Epoxy-LinedTanks 3 years from date of original installation
Sump/Sewage/EffluentProducts 12 months from date of original installation, or
18 months from date of manufacture
Our warranty will not apply to any product that, in our sole judgement, has been subject to negligence, misapplication, improper
installation, or improper maintenance. Without limiting the foregoing, operating a three phase motor with single phase power
throughaphaseconverterwillvoidthewarranty.Notealsothatthreephasemotorsmustbeprotectedbythree-leg,ambient
compensated, extra-quick trip overload relays of the recommended size or the warranty is void.
Youronlyremedy,andSTA-RITE’sonlyduty,isthatSTA-RITErepairorreplacedefectiveproducts(atSTA-RITE’schoice).Youmust
pay all labor and shipping charges associated with this warranty and must request warranty service through the installing dealer
assoonasaproblemisdiscovered.NorequestforservicewillbeacceptedifreceivedaftertheWarrantyPeriodhasexpired.This
warranty is not transferable.
STA-RITESHALLNOTBELIABLEFORANYCONSEQUENTIAL,INCIDENTAL,ORCONTINGENTDAMAGESWHATSOEVER.
THEFOREGOINGWARRANTIESAREEXCLUSIVEANDINLIEUOFALLOTHEREXPRESSANDIMPLIEDWARRANTIES,
INCLUDINGBUTNOTLIMITEDTOTHEIMPLIEDWARRANTIESOFMERCHANTABILITYANDFITNESSFORAPARTICULAR
PURPOSE.THEFOREGOINGWARRANTIESSHALLNOTEXTENDBEYONDTHEDURATIONEXPRESSLYPROVIDEDHEREIN.
Some states do not allow the exclusion or limitation of incidental or consequential damages or limitations on the duration of an
impliedwarranty,sotheabovelimitationsorexclusionsmaynotapplytoYou.ThiswarrantygivesYouspecificlegalrightsand
Youmayalsohaveotherrightswhichvaryfromstatetostate.
ThisLimitedWarrantyiseffectiveJune1,2011andreplacesallundatedwarrantiesandwarrantiesdatedbeforeJune1,2011.
STA-RITE INDUSTRIES
293 Wright Street • Delavan, WI U.S.A. 53115
Phone: [phone] • Fax: [phone] • Web Site: sta-rite.com

Installation 4
Before you install your pump
NOTICE:Wellmustnotbemorethan20’depthtowater.
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(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.
5. Noairpocketsinsuctionpipe.
6. Noleaksinsuctionpipe.UsePTFEpipethreadsealanttapetoseal
pipejoints.
7. Unionsinstallednearpumpandwellwillaidinservicing.Leaveroom
to use wrenches.
8. Risk of explosion. Pump body may explode if used as a
boosterpump.DONOTuseinaboosterapplication.
NOTICE:Usetheinstallationmethodwhichmatchesyourwelltype.
9. Installacheckvalveinthepumpsuctionport.Besurethattheflow
arrow points toward the pump. Failure to install a check valve on the
inlet side of the pump may allow the pump body to drain between
pump cycles, causing dry running, seal or internal failure, and voiding
the warranty.
1096 0697
Pump
Body
From
Well
Dirt and Scale Plug Pump and Pipes!
Use New Pipe for Best Results.
Clean Flow!
Figure 1 – No Dirt or Scale in
SuctionPipe
1100 0697
Figure 2 – Foot Valve Must
WorkFreely
Figure 3 – No Air Pockets in
SuctionPipe
No Sags
Sags Allow Air Pockets
If Air Pockets Form, Water Won’t Flow.
Keep Pipe Straight and Angled up to Pump.
1101 0697
No air leaks In
Suction pipe.
If air flows
water won’t
Use PTFE tape.
Use PTFE pipe thread sealant tape or pipe joint
compound approved for use on PVC.
Figure 4 – Suction Pipe Must Not Leak

Installation 5
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PTFE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information.
3. 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 5
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6.
Keephorizontalpiperunasshortaspossible.UsePTFEpipethread
sealanttapeonmalepipethreads.Multiplewellpointsmaybe
necessary to provide sufficient water to pump.
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asuction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6.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.
2. 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.
• 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.
Sprinkling Application
This pump 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 discharge to service is shown in Figure 7.
Do not use in a pressure tank or booster pump application.
Figure 5 – Cased/Dug Well Installation
Suction
pipe
Foot
Valve
Priming plug
Priming tee
Standing water
level (pump off)
Drawdown water
level (pump on)
10-20' (3-6 m)
20' (6 m) max.
At least 5 feet (1.5 m)
828 0993
Figure 6 – Driven Point Installation
Check valve
Steel drive pipe
Drive coupling
Driven point
745 0993
Figure 7 – Multiple Discharge
4326 0203
Gate
Valve
Gate
Valve
To
Service
To
Service
Priming
Plug
Check
Valve

Installation 6
Pump Installation
Makesurethatallpipejointsinthesuctionpipeareairtightaswellas
water tight. If the suction pipe can suck air, the pump will not be able to
pull water from the well.
1 Boltpumptosolid,levelfoundation.
2. Support all piping connected to the pump.
3. Wrap1-1/2totwolayersofPTFEtapeclockwise(asyoufaceendof
pipe) on all male threads being attached to pump.
4. Tighten joints hand tight plus 1-1/2 turns. Do not overtighten.
NOTICE : Installpumpasclosetowellheadaspossible.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6.Besurecheckvalveflowarrow
points toward pump.
Useschedule80orironpipe.SeeWell Pipe Installation for more
information.
Wiring
Hazardous voltage. Follow these rules to avoid potential harm:
• Groundmotorbeforeconnectingtoelectricalpowersupply.Failureto
ground motor can cause severe or fatal electrical shock hazard.
• Donotgroundtoagassupplyline.
• Toavoiddangerousorfatalelectricalshock,turnOFFpowertomotor
before working on electrical connections.
• Supplyvoltagemustbewithin±10%ofnameplatevoltage.Incorrect
voltage can cause fire or damage motor and voids warranty. If in doubt
consult a licensed electrician.
• UsewiresizespecifiedinWiring Chart. If possible, connect pump to a
separate branch circuit with no other appliances on it.
• Wiremotorasshown(Figure12B).Ifmotornameplatediagramdoes
notmatcheitherFigure12Aor12B,follownameplatediagram.
Figure 8 – Bolt Pump Down
4322 0203
Figure 9 – Independently Support All
Piping Attached to Pump
4323 0203
Figure 10 – Use PTFE pipe thread
sealant tape on pipe joints and
connections to pump.
No air leaks In
Suction pipe.
If air flows
water won’t
Use PTFE tape.
Use PTFE pipe thread sealant tape or pipe joint
compound approved for use on PVC.
Figure 11 – Don’t overtighten.
748 0993
Don’t Hit
Thread Stops
Don’t
Overtighten
From
Well
Pump
Body
Hand Tight Plus 1-1/2 Tu rns With Wrench.

Electrical 7
Connection Diagram for Single-Phase Motors
Yourmotor’sterminalboard(underthemotorendcover)shouldmatchthe
diagraminFigure12Aor12B.
For single-phase motors, follow Figure 12A. For 3-phase motors, follow
Figure12B.Ifmotordoesnotmatchthispicture,followtheconnection
diagram on the motor nameplate or in the motor connection box.
Hazardous voltage. Can shock, burn, or cause death. Disconnect
powertomotorbeforeworkingonpumpormotor.Groundmotorbefore
connecting to power supply.
1. Install, ground, wire and maintain this pump in accordance with
electrical code requirements. Consult your local building inspector for
information about codes.
2. Provide a correctly fused disconnect switch for protection while
working on motor. Consult local or national electrical codes for
switchrequirements.
3. Disconnect power before servicing motor or pump. If the disconnect
switch is out of sight of pump, lock it open and tag it to prevent
unexpected power application.
4. Groundthepumppermanentlyusingawireofthesamesizeasthat
specifiedinwiringchart(below).Makegroundconnectiontogreen
groundingterminalundermotorcanopymarkedGRD.or .
5. Connect ground wire to a grounded lead in the service panel or to a
metal underground water pipe or well casing at least 10 feet long. Do
not connect to plastic pipe or insulated fittings.
6. Protect current carrying and grounding conductors from cuts, grease,
heat, oil, and chemicals.
7. ConnectcurrentcarryingconductorstoterminalsL1andL2under
motor canopy (single phase) or in motor connection box (3-phase).
When replacing motor, check wiring diagram on motor nameplate
againstFigures12Aand12B.Ifthemotorwiringdiagramdoesnot
matchoneofthediagramsinFigures12Aand12B,followthediagram
on the motor.
8. Motorhasautomaticinternalthermaloverloadprotection.Ifmotorhas
stopped for unknown reasons, thermal overload may restart it unex-
pectedly, which could cause injury or property damage. Disconnect
power before servicing motor.
9. If this procedure or the wiring diagram is confusing, consult a
licensedelectrician.
A
L2
L1
230 V
olts
Green
Ground
Screw
4335 0303
Figure 12A – 230V Single Phase
Wiring Diagram
Wiring Chart – Recommended Wire and Fuse Sizes
Model Motor
HP Volts/Hz/Phase
Service
Factor
Amp
Branch
Fuse*
Rating
Amp
Distance In Feet(Meters) From Motor To Supply
0 - 100
(0 - 30)
101 - 200
(31 - 61)
201 - 300
(62 - 91)
301 - 400
(92 - 122)
401 - 500
(123 - 152)
AWG Wire Size (mm²)
DSS3HG 2 230/60/1 9.8 20 14 (2) 14 (2) 12 (3) 10 (5.5) 10 (5.5)
DSS3HG3T 2 208-230/460/60/3 9.2/4.6 15/15 14 (2)/14 (2) 14 (2)/14 (2) 12 (3)/14 (2) 10 (5.5)/14 (2) 10 (5.5)/12 (3)
DSS4HG 2 230/60/1 13.3 20 12 (3) 12 (3) 10 (5.5) 10 (5.5) 8 (8.4)
DSS4HG3T 2 208-230/460/60/3 11.0/5.5 15/15 14 (2)/14 (2) 14 (2)/14 (2) 12 (3)/14 (2) 10 (5.5)/14 (2) 10 (5.5)/14 (2)
* Dual element time delay fuse
3-Phase Low Voltage
3-Phase High Voltage
4-Brown
5-Orange
6-Black
1-Red
7-Purple
2-White
8-Gray
3-Blue
9-Pink
4-Brown
7-Purple
5-Orange
8-Gray
6-Black
9-Pink
1-Red
2-White
3-Blue
LINE 1
LINE 2
LINE 3
LINE 1
LINE 2
LINE 3
To reverse
rotation,
interchange
any two line
leads.
5724 1107
Figure 12B – 3-Phase Wiring Diagram

Operation 8
Priming The Pump
NOTICE:Theterm‘priming’referstotheprocessofpumpingalltheair
out of the system, filling the pump and suction piping with water, and
beginning to move water through the pump and out into the system. A ‘self-
priming’pumpgenerallywillrepeatthisprocesswithoutattentiononce
the pump and system are full of water. If the water drains out of the pump
(back into the well, for example), then the whole priming process must be
repeated before operating the pump again.
Tomakesurethatthepumpwill‘retainitsprime’(thatis,thatthepump
anditspipingwillstayfullofwater),BESUREtoinstallacheckvalveinthe
pump inlet port with the flow arrow pointing towards the pump. The check
valve will prevent water from siphoning out of the pump body and back
down into the well, which will keep the pump full and allow it to restart on
its own.
DO NOT remove the recirculation valve cover (there are spring-loaded
parts inside the recirculation valve – see Figure 16) when priming or
draining the pump. The drain is a hex-head pipe plug underneath the pump
body.Todrainthepump,removethehexplug(Ref.No.17,Repair Parts
diagram). Do not disturb the recirculation valve(Ref.No.19).
• Ifthepumporthesuctionpipehavebeendrainedforanyreason,
BESUREtoreprimethepumpbeforestartingit.
NOTICE:NEVERrunthepumpdry.Runningthepumpwithoutwaterinit
will damage the seals, can melt the impellers and diffusers, and voids the
warranty. To prevent damage, fill the pump with water before starting.
1. Remove priming plug (Figure 13).
2. Makesuresuctionanddischargevalvesandanyhosesondischarge
side of pump are open.
3. Fill pump and suction pipe with water.
4. Replaceprimingplug,usingPTFEtapeonthread;tightenplug.
NOTICE: If a priming tee and plug have been provided for a long
horizontal run, be sure to fill suction pipe through this tee and replace
plug.(Don’tforgettoPTFEtapetheplug.)
5. Start pump: water should be produced in 5 minutes or less, the
timedependingondepthtowater(notmorethan20’)andlengthof
horizontalrun(10’ofhorizontalsuctionpipe=1’ofverticalliftdueto
friction losses in the pipe).
If no water is produced within 5 minutes, stop pump, release all
pressure, remove priming plug, refill and try again.
Hazardous pressure and risk of explosion and scalding. If pump
is run continuously at no flow (that is, with discharge shut off or without
priming),watermayboilinpumpandpipingsystem.Understeampressure,
pipes may rupture, blow off of fittings or blow out of pump ports and scald
anyone near.
To prevent explosion, do the following:
A. Besuredischarge(valve,pistolgriphosenozzle,etc.)isopenwhenever
pump is running.
B. Ifpumpfailstoproducewaterwhenattemptingtoprime,release
all pressure, drain pump and refill with cold water after every
twoattempts.
C. When priming, monitor pump and piping temperature. If pump or
piping begin to feel warm to the touch, shut off pump and allow system
to cool off. Release all pressure in system and refill pump and piping
with cold water.
Figure 13 – Remove Priming Plugs
4324 0203
Figure 14 – Fill Pump Before Starting
4325 0203
Figure 15 – Do Not Run Pump with
Discharge Shut-off.
1117 0993

Maintenance 9
Maintenance
If motor is replaced, replace the shaft seal and O-Rings. Keep a seal and
O-Rings on hand for future use.
Besuretoprimepumpbeforestarting.
NOTICE: The mechanical shaft seal in the pump is water lubricated and
self-adjusting.
NOTICE: Drain pump (see Figure 16) when disconnecting from service or
whenitmightfreeze.YoucanfillthepumpwithRVanti-freeze(propylene
glycol)topreventitfromfreezing.DONOTremovetheRecirculationValve
to drain the pump (Figure 16). Remove the hex head plug on the bottom of
thePumpSuctionBodytodrainthepump.
Pump Disassembly
See Repair PartsforRef.No.references.
NOTICE: Do not disturb the recirculation valve(seeFigure16).ItisNOTa
drain plug!
1. Shut off power to the pump before working on it.
2. Close all suction and discharge valves to isolate the pump before
proceeding further.
3. Removethehexheaddrainplug(Ref.No.17)fromthesuctionbody
and drain the pump.
4. Disconnect the suction line.
5. Removefourcapscrews(Ref.No.18)fromthepump(seeFigure17).
6. Pull the pump suction body forward (see Figure 18). Remove the sleeve
(Ref.No.9)bypullingitstraightforward.Becarefulnottodamagethe
O-rings on the bracket and suction body.
7. Removethemotorcanopy,holdthemotorshaftwitha7/16”openend
wrench,andremovethenutandtwowashers(Ref.Nos.14,13,12)
from the end of the shaft. See Figure 19.
8. Slidetheimpellersanddiffusers(Ref.Nos.11,10)offoftheshaft
(Figure 19).
9. Slidethespacer(Ref.No.7)offoftheshaft,thenpulltherotatinghalf
oftheseal(Ref.No.6)forwardontheshaftandremoveit.
10. Blockupthemotor(sothattheshaftwillnottaketheweightofthe
motor when you loosen the capscrews holding the motor to the
bracket),removefourcapscrews(Ref.No.2),andslidethemotorand
shaft back out of the bracket (see Figure 20).
NOTICE: To avoid springing the shaft, be sure that the shaft does not
take the weight of the motor as you remove it.
4314 0203
Figure 19
Figure 20
4315 0203
4312 0203
Figure 17
4313 0203
Recirculation Valve –
Do not Disturb!
Figure 18
5886 0908
Drain Plug
Recirculation Valve:
Do not disturb when
draining pump!
Vent Plug
Figure 16

Maintenance 10
Seal Removal
1. Followtheinstructionsunder“PumpDisassembly”,above.
2. Removethedischargepipefromthebracket(Ref.No.4).
3. Remove the hold down bolts from the bracket.
4. Turn the bracket motor side up on the bench and use a screwdriver to
carefully tap the stationary seal half out of the bracket (see Figure 21).
5. Clean the seal seat cavity in the bracket.
Seal Installation
1. Turnthebracketpumpsideuponthebench.Youwillneedtoblockit
up to do this (See Figure 22).
2. Clean the seal cavity in the bracket.
3. Wet the outer edge of the rubber cup on the ceramic seat with liquid
soap.Besparing!
4. Put a clean cardboard washer on the seal face. With thumb pressure,
press the ceramic seal half firmly and squarely into the seal cavity.
The polished face of the ceramic seat is up. If the seal will not seat
correctly, remove it, placing the seal face up on the bench. Reclean the
cavity. The seal should now seat correctly.
5. If the seal does not seat correctly after recleaning the cavity, place a
clean cardboard washer over the polished seal face and carefully press
itintoplaceusingapieceofstandard3/4”pipeasapress.
NOTICE:Besureyoudonotscratchthesealface.
6. Dispose of the cardboard washer and recheck the seal face to be sure it
is free of dirt, foreign particles, scratches and grease.
7. Inspect the shaft to be sure it is free of nicks and scratches.
Pump Reassembly
1. Boltthebracketdowntothefoundation(seeFigure23).
2. Slide the motor shaft through the seal and bolt up the motor (see
Figure23).Makesurethattheslingerisontheshaftbetweenthe
bracketandthemotorflange.Makesurethatyoudon’tchiptheseal
face with the shaft shoulders and that the shaft does not take the weight
of the motor at any time.
2. CAREFULLYslidetherotatingsealhalfontotheshaft,sealfacefirst.
Makesurethatyoudon’tchipthesealfaceontheshaftshoulders.
3. Followthesealhalfwiththespacer(Ref.No.7).Slidethewasherup
against the seal.
4. Slide a diffuser onto the shaft (open face out) until it seats on the
bracket (see Figure 24). Follow the diffuser with an impeller on a four-
stage pump or with the stainless steel spacer if a three-stage pump.
Engagethemoldedimpellerkeyintheslotintheshaft.Don’tforceit!
Besurethattheimpellereye,withmetalring,facesout(forward-see
Figure 25).
5. Repeat step 4 with the remaining impellers and diffusers.
6. Reinstall the toothed washer, the flat washer, and the impeller nut (in
thatorder–Ref.Nos.12,13,14)ontothemotorshaft(seeFigure26).
Holdtheshaftandtightentheimpellernutto10ft.-lbs.torque.
7. CheckthesleeveO-Rings;iftheyshowanydamageorwear,replace
them.ReinstallthesleeveO-Rings(Ref.No.8)onthebracketandthe
suction body.
4319 0212
Figure 24
4336 0303
Pipe
Cardboard
Washer
Seal Half
Figure 22
Slinger
4318 0203
Figure 23
Figure 21
4316 0203
Figure 25
6433 0711
Correct orientation Incorrect orientation
Metal ring

Maintenance • Troubleshooting 11
Troubleshooting
Symptom Possible Cause(s) Corrective Action(s)
Motorwillnotrun
Disconnect switch is off Besureswitchison.
Fuse is blown or circuit breaker
tripped. Replace fuse or reset circuit breaker.
Starting switch is defective. DISCONNECTPOWER;Replacestartingswitch.
Wires at motor are loose,
disconnected, or wired incorrectly.
Refertoinstructionsonwiring.DISCONNECTPOWER;checkandtightenallwiring.
Risk of electrical shock. Capacitor voltage may be hazardous. To
dischargecapacitor,holdinsulatedhandlescrewdriverBYTHEHANDLEandshort
capacitor terminals together. Do not touch metal screwdriver blade or capacitor
terminals. If in doubt, consult a qualified electrician.
Motorrunshotandoverloadkicks
off.
Motoriswiredincorrectly. Refer to instructions on wiring.
Voltageistoolow Check with power company. Install heavier wiring if wire size is too small (See
Electrical/WiringChart).
Motorrunsbutnowaterisdelivered
in new installation:*
1. Improper priming 1. Re-prime according to instructions.
2. Air leaks 2. Check all connections on suction line, with soapy water or shaving cream.
3.Leakingfootvalveorcheck
valve 3. Replace foot valve or check valve.
Pump has lost prime in installation
already in use:
1. Air leaks 1. Check all connections on suction line and shaft seal.
2. Water level below suction pipe
inlet
2.Lowersuctionlineintowaterandre-prime.Ifrecedingwaterlevelinwellexceeds
20’(6.1M),adeepwellpumpisneeded.
Foot valve or strainer is plugged Clean foot valvye or strainer.
Impeller is plugged Clean impeller.
Check valve or foot valve is stuck
shut Replace check valve or foot valve.
Pipes are frozen Thawpipes.Burypipesbelowfrostline.Heatpitorpumphouse.
Foot valve and/or strainer are
buried in sand or mud.
Raise foot valve and/or strainer above bottom of water source. Clean foot valve and
strainer.
Water level is too low for shallow
well setup to deliver water. Pumpwillnotliftwatermorethan20’(6.1M).
Pump does not deliver water to full
capacity.
Water level in well is lower than
estimated.
Adeepwelljetwillbeneededifdepthtowaterinyourwellismorethan20’
(6.1m).
Steel piping (if used) is corroded
or limed, causing excess friction. Replace with plastic pipe where possible, otherwise with new steel pipe.
Piping is too small in size Uselargerpiping.
Packed well point Backflushwellpointorsinknewpoint.
*Stoppump;thencheckprime
before looking for other causes.
Unscrewprimingplugandseeif
water is in priming hole.
8. Reinstall the sleeve on the bracket and the pump
suctionbodyinthesleeve.Besurethatyoudonot
pinch or damage the O-Ring. See Figure27.
9. Installfourcapscrews(Ref.No.18)throughthe
pump head and into the bracket. Tighten the
capscrews to 22ft.-lbs. torque.
10. Reinstallthedrainplugandwasher(Ref.Nos.17
and 16) in the suction body.
NOTICE: Do not disturb the recirculation valve.
11. Reinstall the suction and discharge piping and open
all valves. Check for leaks.
12. Prime the pump according to the instructions on
Page 8.
4321 0203
Recirculation Valve
Do not disturb!
Figure 27
Figure 26
4320 0203

Repair Parts 12
Ref. Part Description Qty. DSS4HG DSS4HG3T DSS3HG DSS3HG3T
1Motor 1B85740 B86076 B86075 B86077
2SocketHeadCapscrew 4U30-104ZP
3 Slinger 1 17351-0009
4Bracket 1M13784
5ImpellerRepairKit(IncludesRef.Nos.6–8and10–14) 1B85604 B86078
6Shaft Seal 1U9-469
7Spacer 1 121P1710
8O-Ring 2 111P2700
9 Sleeve 1 251A4310
10 Diffuser 4 101P6290
11 Impeller 3 or 4 101P6210
11A Spacer (3 Stg pump only) 1M15780
12 Washer, Flat 1 121P1760
13 Washer, Toothed 5M13975
14 ImpellerNut 1U36-204SSW
15 PumpBody(Suction) 1 751S4800
16 Washer 2 121P0810
17 Pipe Plug 2 171P1180
18 Capscrew 4 121P1690
19 RecirculationValveComplete(IncludesO-Ring) 1ZBR05820
1
2
3
10
11
11A
10
11
10
11
10
11 12
13
13
14
15
18
16
17 19
16
17
45
5
6
7
8
9
8
4311 0212
Exploded View
1 ø 3 ø
3 Stage DSS3HG DSS3HG3T
4 Stage DSS4HG DSS4HG3T