background image

8

C. With finger pressure press seat firmly and squarely into cav-

ity. See Figure 10A. Polished face of seat faces inside of pump.
If seat will not locate properly, place cardboard washer over
polished face and use piece of 3/4” standard pipe for press-
ing purposes. See Figure 10B.

D. Dispose of cardboard washer and clean surface of seat.

E. Clean motor shaft.

F. Reassemble back half of pump to motor.

G. Apply detergent solution to inside diameter of rotating seal

member.

H. Slide rotating member on shaft until rubber drive ring hits

shaft shoulder.

NOTICE: BE SURE

you do not chip or scratch

seal face on shaft shoulder or seal will leak!

I. Screw impeller on shaft (clockwise) while holding shaft with

7/16” open end wrench on shaft flats. This will automatically
locate seal in place. See Figure 11.

J. Reposition capacitor and replace motor canopy.

K. Remount diffuser on seal plate.

Cleaning Impeller

1. Follow steps 1A through 1E under “Disassembly and Assembly

of Pump” on Page 7.

2. Remove diffuser and impeller from pump per instructions under

“Removing Motor for Service and Replacing Shaft Seal” on Page
7.

3. Clean impeller and reassemble impeller and diffuser per in-

structions under “Removing Motor for Service and Replacing
Shaft Seal” on pages 7 and 8.

Cleaning Shallow Well Jet

To remove debris from venturi or nozzle, proceed as follows:

1. Disassemble pump per instructions on Page 7.

2. Turn venturi counterclockwise and remove it. The nozzle is

now exposed. Remove it using a 5/8” hex socket wrench with
extension. Turn counterclockwise. If socket wrench is not avail-
able, insert an ice pick or similar pointed tool carefully into the
nozzle. This will dislodge debris.

3. Flush out the debris by running water through the nozzle in the

same direction as the dislodging tool was inserted.

4. Reinstall nozzle and venturi. Do not overtighten!

5. Reassemble pump per instructions on Page 7.

HELPFUL HINTS

How to Handle a Gaseous Well

In some areas well water contains gases which must be allowed to
escape before the water is used. This can be done as shown in
Figure 12.

A good way of delivering gas-free water is to suspend a pipe, closed
at the bottom and open at the top, surrounding the suction pipe.
Since the gases rise in the well casing, the water sucked down
through the pipe and into the suction pipe is free of gas. This type
of well must be vented to the outside of any enclosure.

Air Control in Flowing Wells

Flowing wells, or wells with little or no drawdown, could create a
special problem in air control in the operation of your water sys-
tem.

In such cases, install a Captive Air® Tank. It does not require any
air control.

Figure 12

Not

to

Scale

Pipe strap or
wire to hold
pipe sleeve

Pipe
sleeve

Pipe
cap

Tail
pipe

Foot
valve

2369 0396

Gases
rise to 
surface

SERVICE

477 0194

483 0194

478 0194

FIGURE 10A

FIGURE 10B

FIGURE 11

Summary of Contents for CRAFTSMAN 390.251482

Page 1: ...g Instructions Before First Use of This Product Save This Manual For Future Reference Sears Roebuck and Co Hoffman Estates IL 60179 U S A Safety Instructions Installation Operation Troubleshooting Repair Parts PRINTED IN U S A PROFESSIONAL HYDROGLASS SHALLOW WELL JET PUMP Form No F642 9803 Rev 6 5 98 ...

Page 2: ... burn or cause death Ground pump before connecting to power supply Hazardous pressure Install pressure relief valve in discharge pipe Release all pressure on system before working on any component 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 ...

Page 3: ...DO NOTICE Use Teflon tape supplied with the pump for making all threaded connections to the pump Impeller and Jet Impeller turns with motor shaft causing water to fly out from its rim by centrifugal force Impeller rotation creates a vacuum which pulls in more water Part of the water is diverted back to the jet where it passes through the nozzle and venturi This creates more vacuum to draw in more ...

Page 4: ... to guard against power failure is a good idea If you install an engine generator set for emergency backup power for your pump supply the generator set manufacturer with the nameplate data from the pump motor He will then be able to provide a gen erator of the correct size to power your pump Also be sure to add the load from any other accessories such as lights that may be on the same circuit Hori...

Page 5: ...URE 4 Motor wiring connections through Pressure Switch Match motor voltage to line voltage Your Motor Terminal Board under the motor end cover and Pressure Switch look like one of those shown below Convert to 115 Volts as shown Do not change motor wiring if line voltage is 230 Volts or if you have a single voltage motor Connect power supply as shown for your type of switch and your supply voltage ...

Page 6: ...n threaded fittings in the plastic pump If leaks do occur remove the fitting replace the Teflon tape and rewrap with 1 1 2 to 2 turns of Teflon tape and remake the connection 2 Independently support all piping connected to the Hydroglass Pump OPERATION Priming the Pump NEVER run pump dry Running pump without water may overheat unit damaging seals and possibly burning per sons handling pump NEVER r...

Page 7: ...ut side with plastic mallet This will insure proper seating of O Ring and clamp E Assemble base mounting bolts Connect pressure switch tub ing and close draincock F Prime pump and turn on power REMOVING MOTOR FOR SERVICE AND REPLACING SHAFT SEAL If it is necessary to remove motor always replace the shaft seal We suggest you purchase this item U109 6A and have it on hand for future use NOTICE The s...

Page 8: ...le proceed as follows 1 Disassemble pump per instructions on Page 7 2 Turn venturi counterclockwise and remove it The nozzle is now exposed Remove it using a 5 8 hex socket wrench with extension Turn counterclockwise If socket wrench is not avail able insert an ice pick or similar pointed tool carefully into the nozzle This will dislodge debris 3 Flush out the debris by running water through the n...

Page 9: ...plastic pipe where possible otherwise with point 3 immediately limed causing excess friction new steel pipe above 3 Offset piping is too small in size 3 Use larger offset piping Pump pumps water 1 Pressure switch is out of adjustment 1 Adjust or replace pressure switch but does not shut off or contacts are frozen 2 Faucets have been left open 2 Close faucets 3 Jet or impeller is clogged 3 Clean je...

Page 10: ...er 8 J1 39P J1 39P Diffuser 9 U30 542SS U30 542SS Screw 8 32 x 7 8 5 Required 10 C19 54SS C19 54SS Clamp Tank Body 11 U9 201 U9 201 O Ring Venturi 1 3 8 x 1 1 8 x 1 8 12 N32P 66 N32P 66E Venturi 13 N34P 19 N34P 17 Nozzle 14 N76 29P N76 29P Insert 15 J20 18 J20 18 Gasket 16 N176 28PB N176 28PC Tank Body Assembly Front Half Includes Key No 11 12 13 14 15 19 20 and 23 17 U37 673P U37 673P Switch Tube...

Page 11: ...15 16 17 18 19 20 21 22 23 24 25 25A 26 27 28 29 766 1194 To Order Parts in the U S A Call Sears Product Service 1 800 366 7278 To Order Parts outside the U S A Call Your local Sears Service Center or Store 1A L1 L2 1B 1C 1D 1E Wiring omitted for clarity ...

Page 12: ...ll 9 am 5 pm Monday Saturday 1 800 827 6655 M A I N T E N A N C E A G R E E M E N T America s Repair Specialists REPAIRSERVICES America s Repair Specialists REPAIRSERVICES America s Repair Specialists REPAIRSERVICES Sears Roebuck and Co Hoffman Estates IL 60179 U S A OWNER S MANUAL MODEL NO 390 251482 390 251882 The model number of your Shallow Well Jet Pump will be found on the pump body When req...

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