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OWNER'S
MANUAL
3-WIRE SUBMERSIBLE
PUMP MODEL Nos.
390.284020
390.284060
390.284030
390.284070
390.284040
390.284080
390.284050
390.284090
CONTROL CENTER Nos.
390.284120
390.284250
390.284130
390.284260
390.284140
390.284270
2-WIRE SUBMERSIBLE
PUMP MODEL Nos.
390.285510
390.285520
390.285530
CAUTION:
Read and Follow
All Safety Rules and
Operating Instructions
Before First Use of
This Product.
Save This Manual For
Future Reference.
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
PRINTED IN U.S.A.
TWO and THREE WIRE
SUBMERSIBLE PUMPS
• Safety Instructions
• Installation
• Operation
• Troubleshooting
• Repair Parts
F642-9410
Form No.
(Rev. 5/25/95)
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Summary of Contents for Sears 390.284020
- Page 1 • Safety Instructions Before First Use of • Installation This Product. • Operation Save This Manual For • Troubleshooting Future Reference. • Repair Parts Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A. PRINTED IN U.S.A. F642-9410 Form No. (Rev. 5/25/95)
- Page 2 For one year from the date of purchase, when pump is installed and maintained according to our instructions and not subjected to sand or abrasive damage, Sears will furnish and install a new pump, free of charge, if the pump is defective in materials or work- manship.
- Page 3 – – – – – – – 390.285520 13.6 12.6 11.5 10.1 – – – – – – – – 390.284020 13.6 12.6 11.5 10.1 – – – – – – – – 390.285530 – – 13.5 12.7 11.9 10.7 –...
- Page 4 Figure 2 drop it into the well. shows typical installation of a Sears Captive Air® Tank 2. When float hits water and string becomes slack, mark the System. Figure 3 shows typical installations of a Sears string and pull float from well.
- Page 5 For your protection, install this pressure relief valve. Be sure your generator is the same voltage as your sub- Purchase from your local Sears Store. mersible motor. See Table II, Page 3. This relief valve is designed to protect home water systems...
- Page 6 ELECTRICAL motor (3 load conductors plus a ground wire), and three Make sure power is off before wiring control center. Follow wires when looking at a “2-Wire” motor (2 load conductors wiring diagram, Figures 4 and 5. plus a ground wire). “3-Wire” motors require an electrical Make sure that the line voltage and frequency stamped on disconnect switch plus a Control Center;...
- Page 7 ELECTRICAL Method #1: Soldering (Figure 6) Important Electrical Grounding Information Stagger the pigtail ends of the motor leads and the cable. Cut Hazardous voltage. Can shock, burn, each lead about 4" longer than the last one. Trim the insula- or kill. To reduce the risk of electri- tion back 1/2"...
- Page 8 ELECTRICAL / PIPING INSTALLATION Method #3: Cable Splicing for #8 Wire Cable install a Sears Pump Guard (Stock No. 2720) to prevent run- ning pump dry. (Splice to #10 or smaller wire ONLY) If depth of well and the distance to the water level in the 1.
- Page 9 PIPING INSTALLATION 4.Trim centering guides if necessary. Centering guides will fit 6 inch or larger well casings and 1 inch drop pipe. For 4 or 5 inch casings, the outside tabs must be trimmed with a hacksaw or knife. See marks on tabs. For drop pipe sizes 1-1/4 and 1-1/2 inch, inside hole of guide must be trimmed.
- Page 10 INSTALLATION 17.Develop the well – See "Well Development and Pump draw down water level. If drawdown level is not known, Test”. set the pump 5 feet from the bottom of the well. 6. Develop the well – See "Well Development and Pump 18.Before piping up a Captive Air®...
- Page 11 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.
- Page 12 HELPFUL HINTS – TROUBLES, CAUSES & REMEDIES Trouble Causes Remedies Fuses blow or A. Fuses or wires too small. A. Replace with correct sizes (see Table II, Page 3). overload protector B. Low or high voltage. B. While motor is running, voltage should not exceed plus 10% or minus 5% trips when motor of rated voltage shown on motor nameplate.
- Page 13 Repair Parts 390.284120 390.284250 390.284130 390.284260 390.284140 390.284270 ® f i c 1184 0794 To order parts, call Sears Product Service, 1-800-366-7278 REPAIR PARTS LIST 230V/60Hz/1Ph Standard Energy Efficient 1/2 HP 3/4 HP 1 HP 1-1/2 HP 2 HP 3 HP Key.
- Page 14 SUBMERSIBLE PUMPS REPAIR PARTS 2-Wire Model Nos: 390.285510 390.285520 390.285530 3-Wire Model Nos: 390.284020 390.284030 390.284040 390.284050 1185 0794 To order parts, call Sears Product Service, 1-800-366-7278 REPAIR PARTS LIST 3/4HP/230V 1/2HP/115V 1/2HP/230V 1/2HP/230V Model 1HP/230V 1-1/2HP/230V Key. Model Model Model 390.285530...
- Page 15 SUBMERSIBLE PUMPS REPAIR PARTS 3-Wire Model Nos: 390.284060 390.284070 390.284080 390.284090 To order parts, call Sears Product Service, 1-800-366-7278 REPAIR PARTS LIST 1HP/230V 1-1/2HP/230V 2HP/230V 3HP/230V Model Model Model Model Part 390.284060 390.284070 390.28480 390.28490 Description P364-27 P364-28 P364-29 P364-30 Liquid End Assembly –...
- Page 16 When requesting service or ordering parts, always give the following information: • Product Type • Model Number • Part Number • Part Description Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A. Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
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