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ELECTRICAL / PIPING INSTALLATION

Method #3: Cable Splicing for #8 Wire Cable
(Splice to #10 or smaller wire ONLY)

1. Remove 3/8” insulation from end of motor pigtail leads

and from drop cable leads.

2. Place heat shrink tubing over motor pigtail leads.

3. Insert leads into butt connector and crimp with crimping

tool. Pull leads to check connection.

4. Center tubing over butt connector and apply heat with a

propane torch (a match or lighter will not supply enough
heat).

NOTICE:

Keep torch moving; too much concentrated

heat in one place will ruin tubing and may damage wires.

5. When tubing begins to shrink, increase concentration of

heat at center of tube. As center of tube collapses on wire,
work heat out to each end until entire tube is collapsed
tight around wire.

"Do It Yourself" Installation with polyethy-
lene plastic pipe 

(For Installation of Steel Pipe, See Pages 10 & 11)

This "Proven" Do-lt-Yourself Installation section is intended
to help anyone installing Sears Submersible pumps. If these
simple instructions are followed, you will have a successful
and professional installation that will last as long as there is
water in the welI. 

Polyethylene Pipe is recommended in all "Do-lt-Yourself" in-
stallations. Steel pipe weighs 12 times as much as plastic
pipe and special equipment is required. 100 PSI plastic pipe
can be used to depths of 100'. 160 PSI plastic pipe can be
used to depths of 220'. 

The depth and the drawdown level of a new well can be ob-
tained from the well driller. The drawdown water level is
the lowest level to which the water in the well will drop
while being pumped. 

NOTICE:

If there is a chance that pump can overpump well,

install a Pump Guard (Stock No. 27209) to prevent running
pump dry. 

If depth of well and the distance 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 water
level. If the draw down water level is not known, set the
pump 5 feet from the bottom of the well. 

Install centering guides (purchase from Sears – Stock No.
2724). These are used to keep pump, pipe and electrical
cable centered in the well. 

NOTICE:

Install a torque protector (available locally) to pro-

tect pipe from twisting damage due to motor starting. 

To prevent dropping anything into the well, keep the top of
the casing covered. 

Lay pump near the well, discharge end pointing outward.
Also lay out the well seal or pitless adapter if used, plastic
pipe, safety rope, hose clamps, centering guides, tape, elec-
trical cable and tools. If this is a standard pressure tank in-
stallation, also lay out the bleeder orifice piping as shown in
Figure 8 (below) and Figure 1 on Page 4. 

NOTE:

The bleeder orifices, check valve and air volume con-

trol (for standard tanks) are not furnished. A special Air
Volume Control Kit containing these parts is available from
Sears Product Service, 1-800-366-7278. Not needed with
Captive Air® tank.

For 1" piping, order Kit No. 2770.

For 1-l/4” and 1-l/2" pipe, order Kit No. 2756. 

Assembly of all components that go into the well should be
made horizontally on the ground and then lowered into
well.

1. Install a nylon adapter in the pump discharge tapping. Use

Teflon tape on male threads only. 

2. Unroll the plastic pipe in a line away from the pump. Be

sure the ground is smooth so as not to damage the pipe
or electrical cable. 

3. Cut off sealed ends of plastic pipe. Use a sharp knife or

hacksaw. 

8

Wire Ends Ready to Splice:
Strip 1/2" back for crimp-type connectors

Wire Spliced (Crimped)

Heat-shrink tubing

Heat with torch:
1. Keep the heat moving.
2. Don't overheat.

1181 0794

Figure 7: Heat-Shrink Splicing.

1186 0794

Figure 8

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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