Instruction/ maintenance manual of the product 390.2508 Sears
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I SEARS OWNER'S MANUAL MODEL NO. 390.2508 CAUTION: Read andFollow All Safety Rules and Operating Instructions Before First Use of This Product. Save This Manual For Future Reference.
CONTENTS WaL'ranty .............................................................................. 2 Pump Performance .............................................................. 3 Major Components ...............................................
GENERAL INFORMATION Table h Pump Performance Chart (In Gallons Per Minute) Discharge Pump Suction Discharge Pressure Pumping Depth in Feet Model Description Size Size P.S.I. 5' 10' 15' 20' 390.2508 1/2 HP Standard S.W. Jet 1-1/4" 3/4" 40 7.
PIPING INSTALLATION Cased Open Well Water Foot Valve Strainer Screen 18360695 Figure 3 Horizontal Piping From well To Pump When the pump is offset more than 25 feet from the well, horizontal piping should be increased in size to reduce fric- tion losses.
ELECTRICAL Disconnect power before working on pump, motor, pressure switch, or wiring. Motor Switch Settings If the motor can operate at either 115 or 230 volts, it is set at the factory to 230 volts. Do not change motor voltage setting if line voltage is 230 volts, or if you have a single voltage motor.
ELECTRICAL WIRING CONNECTIONS ,AWARNING] Fire hazard. Incorrect voltage can cause a fire or seriously damage the motor and voids the warranty. The supply voltage must be within + 10% of the motor name- plate voltage. NOTICE: Dual-voltage motors are factory wired for 230 volts.
OPERATION Priming the Pump NOTE: To properly prime the pump, install a pipe tee in the discharge piping, similar to that shown in Figures 1 and 2 on Page 3. [& CAUTION Never run pump dry. Running pump with- out water may cause pump to overheat, dam- aging seal and possibly causing burns to persons handling pump.
OPERATION 3. Remove seal plate from motor by inserting two screw- drivers between the seal plate and the motor flange. Pry seal plate off motor flange. This will force rotating portion of seal off shaft. NOTE: Be sure you do not scratch shaft! See Figures 7 & 8.
OPERATION I. Screw impeller on shaft (clockwise) while holding shaft wzth 7/16" open end wrench on shaft flats. This v_fll automatically locate seal in place. See Figure 11. FACE OF SEALING WASHER SEAL PLATE HOLES MUST LINE UP DIFFUSER IMPELLER HUB SHAFT SHOULDER RUBBER DRIVE RING Figure I I Remount diffuser on seal plate.
OPERATION B. Place a small amount of No. 2 non-hardening Permatex on surface of insert as shown. Smooth out with finger. See Figure 15. Wipe on small amount of non-hardening Permatex on this surface Figure 1 5 C. Pull insert into cavity as shown in Figure 16.
TROUBLESHOOTING CHART SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION Motor will not run 1. Disconnect switch is off 1. Be sure switch is on 2. Fuse is blown 2. Replace false 3. Starting switch is defective 3. Replace sta_ing switch 4. Wires at motor are loose, 4.
REPAIR PARTS 28 26 25 24 23 To Order Parts, Call Sears Product Service, 1-800-366-7278 22 1 2 4 6 7 8 9 21 20 2305 0296 10 18 17 J 14 11 AVC Port 13 / 12 J 12A / 12B Model 390.
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SEARS OWNER'S MANUAL MODEL NO. 390.2508 The model number of your Shallow Well Jet Pump will be found on a plate attached to the pump discharge connection.
An important point after buying a device Sears 390.2508 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Sears 390.2508 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Sears 390.2508 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Sears 390.2508 you will learn all the available features of the product, as well as information on its operation. The information that you get Sears 390.2508 will certainly help you make a decision on the purchase.
If you already are a holder of Sears 390.2508, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Sears 390.2508.
However, one of the most important roles played by the user manual is to help in solving problems with Sears 390.2508. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Sears 390.2508 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
