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INSTALLATION

set in this position, allow water to be pumped on the
ground until it is completely clear of solids such as silt and
sand. This can be checked by catching some water in a
glass container and waiting a period of time to let the
solids in the water settle to the bottom of the container. 

When the water completely clears, open the valve several
turns to increase the flow rate and repeat the checking
procedure for solids. 

Continue the flow-checking procedure until the valve is
completely open and water is free of solids. 

4. Turn off electric power and remove temporary piping and

wiring. Proceed with final installation. 

Pitless Adapter

Follow instructions included with your pitless adapter for in-
stallation. 

Well Seal

Tighten the 4 bolts on the well seal, thus compressing the
rubber sealing member and sealing the well casing, the drop
pipe and the cable conduit. A conduit fitting should be used
in order to seal the cable at the top of the well seal. Install
an air vent in the third opening in the sanitary well seal as
shown in the diagrams, Figure 1, Page 4.

Complete Installation and Check Operation

At this point the necessary piping to complete this installa-
tion to the tank should be added. 

For suggested methods of piping to the tank, refer to Figures
2 and 3, Page 4, for the pressure tank system being installed. 

Where the tank and controls are installed in a basement or
at another location away from the well, it is necessary that
the pipe leading from the tank back to the well be buried
below the frost line to prevent freezing. 

When all connections have been made, the pump is ready
for operation. 

Turn on switch. The pressure switch will stop the pump at
60 PSI, and will allow it to start again when enough water
has been drawn to reduce the water system pressure to 40
PSI. This can be checked by opening a faucet and drawing
water until the pump starts again. 

NOTICE:

Be sure there is no excessive sand in the water.

Sears, Roebuck and Co. and the manufacturer cannot be re-
sponsible for damage to the pump and motor caused by ex-
cessive sand. (See 

Well Development.

NOTICE

: If there is a chance the pump can over-pump well,

install a Pump Guard (Stock No. 27209) to protect against
dry running. 

11

Trouble

Causes

Remedies

Little or no water 

A. Water level in a low producing well 

A. Lower pump further into well, but make sure it is at least five feet above well bottom.

delivered.

drops too low while pump is operating,

Install a valve in discharge pipe between pump and pressure tank.

causing air lock, loss of prime and 

Use valve to restrict flow until discharge rate does not exceed well recovery rate.

possibly seriously damaging pump.

To prevent possibility of dangerous high pressure, install a 

relief valve in discharge pipe between pump and flow restriction valve.
Relief valve must be capable of passing full pump flow at 75 PSI.

B. Intake screen partially plugged.

B. Lime or other matter in water may build up on screen.

Pull pump and clean screen.

C. Check valve(s) may be stuck.

C. Make sure that built-in check valve in pump and any check valves in

discharge line are free to open properly.

D. Voltage too low; motor will run

D. Have a competent electrician verify voltage at electrical disconnect box  (2-Wire)

slowly, causing low discharge pressure

or control center (3-Wire) while pump is operating. If voltage is low, power company

(head) and high operating current draw.

may need to raise it or installation may require larger wire. Discuss with power 
company or licensed electrician.

E.

Standard tanks only: check valve 

E. Examine check valve; if stuck free it. If installed backwards (arrow on valve

above bleeder orifice assembly may

body will show direction of flow), reverse it. If valve is defective, replace it with a 

be stuck or installed backwards.

new one.

F. Impellers or diffusers worn due to

F. Pull pump and return to Sears for service. Before reinstalling

sand or abrasives in water or run-

pump, sandy or gaseous conditions in well must be corrected.

ning pump while it is air/gas-locked.

Air or milky water 

A. Air volume control not functioning, 

A. Replace air volume control if necessary.

discharges 

causing air to build up in tank.

from faucets.

B. Well water may be gaseous.

B. If your well is naturally gaseous and your system has a standard tank, remove the bleeder 

orifices and plug the tees. If condition is serious, check with competent well professionals.

Pump starts too

A. Leak in pressure tank or plumbing.

A. Check all connections with soapsuds for air leaks. Fix any leaks you find. Check

frequently.

plumbing for water leaks. Fix any leaks you find.

B. Pressure switch defective or out of

B. If necessary, replace switch.

adjustment.

C. Check valve leaking.

C. Inspect valves and replace if necessary.

D. Tank waterlogged.

D. Captive Air

®

Tanks: Check tank for leaks; correct if possible. Recharge tanks to 20 PSI

with a 20-40 PSI switch, 30 PSI for a 30-50 PSI switch, 40 PSI for a 40-60 PSI switch, etc.
Standard Tanks: Check tank for leaks; correct if possible. Check bleeder orfices and clean  
bleeders; replace if necessary.

E. Drop pipe leaking.

E. Raise one length of pipe at a time until leak is found. When water stands in pipe, there is no

leak below that point.

F. Pressure switch is too far from tank.

F. Move pressure switch to within one foot of tank.

HELPFUL HINTS – TROUBLES, CAUSES & REMEDIES

Summary of Contents for Craftsman 390.284021

Page 1: ...90 284271 2 WIRE SUBMERSIBLE PUMP MODEL Nos 390 285511 390 285521 390 285531 CAUTION Read and Follow All Safety Rules and Operating Instructions Before First Use of This Product Save This Manual For F...

Page 2: ...r pressure install a pressure relief valve Stock No 27229 6 With a new well test well water for purity before using Consult your local Health Department for procedure Hazardous voltage Can shock burn...

Page 3: ...13 5 12 9 11 7 10 4 8 9 7 1 High Capacity Pumps with 1 1 4 Discharge 390 284061 1 230 7 40 26 4 24 7 22 7 20 7 18 4 390 284071 1 1 2 230 9 40 25 8 24 3 22 9 21 0 18 8 15 4 390 284081 2 230 12 40 26 4...

Page 4: ...rchase Locally Conduit or Sleeve Cable Splices Plastic Pipe Adapter Plastic Pipe Adapter Pump Check Valve Torque Arrester Purchase Locally Centering Guide 1178 0794 Plastic pipe adapter pipe clamps an...

Page 5: ...shion of air in Standard Tanks No Air Volume Control is needed with a Captive Air Tank Air Volume Control A device mounted on a standard tank in order to keep enough air in the tank to prevent waterlo...

Page 6: ...electrician Check Fusing and Wiring Chart before connecting wires from pressure switch to electric power All wiring must comply with your local electrical code See Chart Page 3 6 L1 L2 YEL BLK RED FO...

Page 7: ...lder with a non acid soldering paste to solder the joint After splicing center the body of the insulator over the splice Slide the neoprene sleeves down into the recesses in the body as far as they wi...

Page 8: ...istance to the water level in the well are not known See page 4 The pump should not be set closer than 5 feet from the bottom of the well and should be submerged 15 to 20 feet below the draw down wate...

Page 9: ...in installation draw ings Figure 1 Page 4 Using teflon tape on all male threads Assemble this unit to the plastic pipe in same manner as outlined in Step 6 Assembly may slip through well seal Install...

Page 10: ...om of the well 6 Develop the well See Well Development and Pump Test below 7 Refer to Typical Pump Installation Drawings for proper method of piping depending on the type of pres sure tank used Well d...

Page 11: ...ve to restrict flow until discharge rate does not exceed well recovery rate possibly seriously damaging pump To prevent possibility of dangerous high pressure install a relief valve in discharge pipe...

Page 12: ...color coding of drop cable Pressure switch fails A Voltage too low motor will run slowly A Have a competent electrician verify voltage at electrical disconnect box 2 wire or to shut off pump causing l...

Page 13: ...71 Description 1 U17 1172 U17 1173 U17 1174 U17 1174 U17 1174 U17 1175 Start Capacitor 2 U17 1184 U17 1185 U17 1186 Solid State Switch 3 U17 1201 U17 1201 U17 1201 Terminal Strip 4 U17 1190 U17 1191 U...

Page 14: ...te 2 U36 197SS U36 197SS U36 197SS U36 197SS U36 197SS U36 197SS Nut 5 16 Hex 4 Required 3 U43 115SS U43 115SS U43 115SS U43 115SS U43 115SS U43 115SS Lockwasher 5 16 4 Required 4 P3 510P P3 510P P3 5...

Page 15: ...43 115SS U43 115SS U43 115SS U43 115SS Lockwasher 5 16 4 Required 4 P3 543SS P3 544SS P3 677SS P3 545SS P3 582SS P3 546SS P3 740SS Lead Cover 5 U30 840SS U30 840SS U30 840SS U30 840SS U30 840SS U30 84...

Page 16: ...1 800 473 7247 For the location of a Sears Repair Service Center in your area Call 24 hours a day 7 days a week 1 800 488 1222 For information on purchasing a Sears Maintenance Agreement or to inquir...

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