Service, Maintaining Your Pump | Sears 390.2518, 390.2514 specs

SERVICE

MAINTAINING YOUR PUMP

Lubrication

It is not necessary to lubricate the pump or its motor. The motor

bearings are lubricated for life. The mechanical shaft seal in the

pump is water lubricated and self-adjusting.

Draining for Winter

When the pump is to be disconnected from service, or is in dan-

ger of freezing, it must be drained. The pump has a dmincock

which must be opened. Remove the priming plug to vent the

pump. Drain the pressure tank. Drain all piping to a point below

the freezing hne.

To drain an air volume control (AVC), remove the tubing Turn the AVC upside down. This will permit any water to drain into tank.

Disassembly and Assembly of Pump

The Hydroglass ® Pump is designed for ease in servicing and main- tenance.

1. Disassemble pump as follows:

A Disconnect power.

B. Open faucet to relieve pressure.

C. Drain pump by opening draincock. Remove pressure switch mWmg from fitting on top of pump.

D. Remove damp, Key No. 10, Page 11.

E. Remove pump base mounting bolts. Motor assembly and

back half assembly of pump can be pulled away from front haft.

F. 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 out-

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.

B. Loosen two screws and remove motor canopy.

C. if motor has capacitor, partially unscrew capacitor clamp and

move capacitor to one side.

!_ikWARNINQ ] Risk of electrical shock. Do not touch ca- pacitor terminals with body" or any metal object.

D.Hold motor shaft with a 7/16" wrench on the shaft flats.

E.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 haft and the motor flange. This will

force rotating portion of seal off shafx. See Figure 10.

4750194

Figure I 0

4.Place back half of pump on flat surface and tap out ceramic seat. See Figure 11.

REMOVING MOTOR FOR SERVICE AND

REPLACING SHAFT SEAL

flit 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 seal consists of two parts, a rotating member and a

ceramic seat. The surfaces of the seal are easily damaged. Read in-

structions carefully. Remove motor as follows:

1. Disassemble pump per instructions above.

2. Remove diffuser and impeller as follows (Key Nos. 7 and 8, Page 11).

A. Remove screws holding diffuser.

5.Clean seal cavity.

6.Install new seal.

A. Clean polished surface of ceramic seat with clean cloth.

B. Wet outer edge of O-Ring with detergent solution.

390.2514, 390.2518 specifications

The Sears 390.2518 and 390.2514 are among the versatile two-way radios that have captured the attention of outdoor enthusiasts and professionals alike. These models are well-known for their robust design, excellent communication range, and user-friendly features, making them ideal for various activities such as camping, hiking, and construction work.

One of the standout features of the Sears 390.2518 and 390.2514 is their impressive transmission range, which extends up to several miles depending on terrain and obstructions. This extended range allows users to maintain clear communication even in challenging environments, providing a reliable connection for team coordination or family outings.

Both models are equipped with a clear sound transmission technology that ensures crisp audio quality. This technology minimizes background noise, allowing users to hear each other clearly, which is especially beneficial in noisy environments like construction sites or during recreational activities. The radios also feature multiple channels, reducing the risk of interference from other radio users, and ensuring a private communication experience.

In terms of design, the Sears 390.2518 and 390.2514 are built to endure the rigors of outdoor use. They possess a durable exterior that can withstand drops and impacts, making them suitable for rough handling. Additionally, these radios often come with weather-resistant features, ensuring reliable performance even in adverse weather conditions.

Another key characteristic of these models is their battery efficiency. With long-lasting power options, users can enjoy extended operation time, making them perfect for day-long trips or extended work shifts. Rechargeable battery options add to their convenience, allowing users to easily charge and reuse the radios without constantly replacing batteries.

Lastly, both models are designed with user-friendly controls, which enable quick adjustments and settings changes without the need for extensive guidance. This characteristic is particularly advantageous in emergency situations, where quick response times are crucial.

In conclusion, the Sears 390.2518 and 390.2514 stand out in the realm of two-way radios due to their robust features, advanced communication technologies, and durable design. These qualities ensure that they remain reliable tools for both recreational and professional users, cementing their status as valuable communication devices in a variety of settings.