MAINTENANCE

NOTICE: DO not overtighten; you may twist studs off of

tank. If you have a torque wrench, tighten to 85 inch-

pounds torque.

18.Stand tank on feet and reconnect piping.

19.Recharge tank to proper air pressure (see Page 5).

20.Reconnect hoses and pressure switch tube; prime pump (see Page 6).

Air Valve Replacement

1.Follow steps 1 through 5 under _Vinyl Bag Removal", Page 7.

2.Cut valve off as close to tank as possible. Push remaining portion back into tank.

3.Tip tank on end and BE SURE all water is drained from bag.

4.Carefully remove bag ring from lip on tank opening and push bag ring back into tank; reach in around it and re- move cut off portion of valve from tank.

5.Wipe a thin film of soapy solution on replacement valve and from inside tank insert in hole in top of tank.

6.Pull valve through hole with pliers or a valve tool (avail-

able at your local filling station or Automotive Center).

7.Follow steps 14 through 20 under "Vinyl Bag Removal", Page 7, to reinstall bag in tank.

Testing for Bag Leakage

1.Follow steps 1 through 4 under "Vinyl Bag Removal", Page 7.

2.Tip tank on end, vane down. Be careful not to break valve!

3.If bag leaks, water will run out of valve. If so, replace bag

as instructed above.

DISASSEMBLY AND

ASSEMBLY OF PUMP

I

I _.WARNING JRtsk of electric shock. Ground unit and

disconnect power before attempting any work on

pomp or motor.

Your Sears pump is designed for ease in servicing. Should

repair or replacement of the motor or seal be needed, the

pump and piping do not need to be disconnected or dis- tuthed.

1.Disassemble pump as follows:

A.Disconnect power.

B.Drain pump by opening drain cock. Remove pressure switch tubing from fitting on top of pump.

_WARNING]To avoid serious injory,release all

pressure fi'om system before attempting to remove clamp from pump.

C. Remove clamp, Key No. 10, Page 12.

D. Remove pump base motmting bolts. Motor assembly and back half assembly of pump can he pulled away from front half.

E. Remove "O" rings.

2.Reassembly of pump.

A. Clean =O" rings and "O" ring grooves.

B.Lubricate =O" rings with petroleum jelly, and place in grooves.

C.Slide pump halves together.

D.Clean inside of clamp. Place clamp around pump halves. Alternately tighten clamp screw and tap clamp around outside with plastic mallet. This will insure proper seating of "O" ring and clamp.

E. Assemble base mounting bolts. Connect pressure switch tubing and close drain cock.

F. Prime pump and turn on power. G. Check for leaks.

Removing Motor for Service

and Replacing Shaft Seal

If it is he4:_essary to separate motor and seal plate, always re-

place the shaft seal. We suggest you purchase this item, UlO94SA, and have it on hand for future use.

NOTICE: The seal consists of two parts, a rotating member and a ceramic seat. The surfaces of the seal are easily dam-

aged. Read instructions carefully.

1. Disassemble pump per instructions above.

2.Remove diffuser and impeller as follows (Key Nos. 8 and 9, Page 12).

A.Remove screws holding diffuser.

B.Loosen two screws and remove motor canopy from motor.

C.Place 7/16" open end wrench on motor shaft flat.

D.Turn impeller counterclockwise when facing it.

3.Remove pump back half from motor by unscrewing four

(4)nuts. Pry back half off motor by inserting two (2)

screwdrivers between the back pump half and the motor flange. This will force rotating portion of seal off shaft. See Figure 5.

4750194

Figure 5

8

Page 7 Page 9
Page 8
Image 8
Sears 390.252158 owner manual Testing for Bag Leakage, Removing Motor for Service
Page 7 Page 9

390.252158 specifications

The Sears 390.252158 is a remarkable all-in-one home entertainment system that encapsulates the essence of mid-20th century design and functionality. Aimed at providing users with an exceptional listening and viewing experience, this model stands out for several key features and technologies that reflect the era's innovations.

One of the defining characteristics of the Sears 390.252158 is its integrated turntable, which allows users to play vinyl records with ease. The turntable boasts a direct-drive motor that ensures stable rotation, minimizing wow and flutter, thus delivering smooth playback. Alongside the turntable, the system includes a cassette deck capable of recording, which not only lets users play their favorite tapes but also offers the convenience of recording from various sources.

Another significant feature of the 390.252158 is its AM/FM radio tuner. It is equipped with a multi-band receiver that provides excellent reception quality, allowing enthusiasts to tune into diverse radio stations with clarity. The analog dial adds a retro touch and makes it easy to find and lock onto the desired frequency.

Sound quality is a focal point of the Sears 390.252158. The system is powered by an integrated amplifier that delivers robust audio performance, complemented by stereo speakers that fill the room with rich sound. The balance and tone controls allow users to adjust the audio output to match their preferences, making it a versatile choice for different music genres.

In terms of build quality, the Sears 390.252158 features a polished wooden cabinet, which not only enhances its aesthetic appeal but also contributes to the acoustics by reducing unwanted vibrations. The design embodies a classic and timeless look that fits seamlessly into various home decor styles, from vintage to contemporary.

Modern technologies like stereo sound are incorporated into the Sears 390.252158, elevating the listening experience. The system enables users to connect additional audio sources, making it suitable for various entertainment options, such as streaming music from devices or connecting external speakers.

In summary, the Sears 390.252158 is an iconic home entertainment system that combines classic design with modern features. Its integrated turntable, cassette deck, quality radio tuner, and powerful amplification create a comprehensive audio experience that continues to resonate with music lovers. The thoughtful combination of aesthetics and functionality ensures that this model remains a cherished centerpiece in any home setting.
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