OPERATION

PRIMING THE PUMP

NOTICE: 'Priming' refers to the pump expelling all air in the

system and beginning to move water from its source out into the system. It does not refer only to pouring water into the

pump (although pouring water in is usually the first step).

NOTICE: NEVER run pump dry. Running pump without water in it will damage seals and can melt impeller and dif-

fuser. To prevent damage, fill pump with water before starting.

1.Remove priming plug (Figure 7).

Figure 7 - Remove Priming Plug

2.Make sure suction and discharge valves and any hoses on

discharge side of pump are open.

3.Fill pump and suction pipe with water.

Figure 8 - Fill Pump Before Starting

4. Replace priming plug, using Teflon tape on thread; tighten plug.

NOTICE: If a priming tee and plug have been provided

for a long horizontal rnn, be sure to fill suction pipe through this tee and replace plug. (Don't forget to Teflon tape the plug.)

5.Start pump: water shonid be produced in 10 minutes or

less, the time depending on depth to water (not more

than 20') and length of horizontal run (10' of horizontal suction pipe = 1' of vertical lift due to friction losses in the pipe).

Figure 9 - Run Ten Minutes Or Less

If no water is produced within 10 minutes, stop pump, release all pressure, remove priming plug, refill and try again.

[AWARNING] Hazardous pressure and risk of explo-

sion and scalding. If pump is run continuously at no flow (that is, with discharge shut off or without prim- ing), water may boil in pump and piping system.

Under steam pressure, pipes may rupture, blow off of fittings or blow out of pump ports and scald anyone near.

Figure 10 - Do Not Run Pump With Discharge

Shut Off

To prevent explosion, do the following:

A. Be sure discharge (valve, pistol grip hose nozzle, etc.) is

open whenever pump is running.

B. If pump fails to produce water when attempting to prime, release all pressure, drain pump and refill with cold water after every two attempts.

C. When priming, monitor pump and piping temperature. If pump or piping begin to feel warm to the touch, shut off pump and allow .system to cool off. Release all pressure in system and refill pump and piping with cold water.

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Craftsman 390.262454, 390.262653, 390.262553 owner manual Priming the Pump, Remove Priming Plug
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390.262454, 390.262653, 390.262553 specifications

The Craftsman 390.262653, 390.262454, and 390.262553 are part of the well-respected Craftsman line of power tools, designed to meet the demands of both professionals and DIY enthusiasts. These tools are engineered with a blend of durability, efficiency, and precision, making them ideal for a variety of projects.

One of the standout features of the Craftsman 390 series is the robust motor. Each tool is equipped with a high-performance motor that delivers ample power for handling tough tasks, whether it's drilling, cutting, or fastening. The motors are designed to minimize overheating and maximize efficiency, allowing users to work for extended periods without interruption.

Ergonomics is a key focus in the design of the 390 models, with handles that provide a comfortable grip. This is particularly beneficial during prolonged use, as it helps reduce fatigue and improve control. The lightweight construction also adds to the overall ease of use, making these tools accessible for users of all skill levels.

In terms of technology, the Craftsman 390 series incorporates advanced features such as variable speed settings. This allows users to adjust the speed according to the task at hand, ensuring precision and adaptability for different materials. Additionally, some models may include LED lighting to illuminate the workspace, enhancing visibility in dimly lit areas.

Durability is another hallmark of the Craftsman brand, and the 390 series is no exception. These tools are built with high-quality materials that can withstand rigorous use on job sites or in home projects. The warranty offered by Craftsman further demonstrates their confidence in the longevity of these products.

Safety is prioritized as well, with features designed to protect the user during operation. This includes mechanisms that prevent accidental starts and protect against electrical overloads.

Overall, the Craftsman 390.262653, 390.262454, and 390.262553 combine power, versatility, and user-friendly design, making them reliable choices for those looking to tackle a range of tasks efficiently. Whether you're a seasoned professional or just starting, these tools promise to deliver performance and reliability for all your crafting needs.
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