The motors on “DD” Series pumps are designed to be used with either 115 or 230 volt supply by changing connections as shown on the diagram.

CAUTION Connecting the motor to the wrong voltage can cause serious damage.

“Table 2” lists branch fuse size ratings and recommended supply wire for each pump.

Grounding the motor

Make sure that the green lead wire is securely connected to the green ground terminal screw on the motor terminal board, “Fig. 1”. This wire must be connected to the electrical system ground (provided by the power company) or to another adequate ground.

CAUTION Failure to ground the pump properly can result in serious or fatal injury.

If any type of wrench must be used on the impeller, be sure to protect the impeller surfaces by putting a shop cloth or other protection between the wrench and the impeller.

Figure 1

Terminal

Board

Capacitor

Ground

Screw

Typical Discharge Plumbing Options

Vertical Discharge

Gate Valve

Tee

Discharge Pipe

Base

Suction Pipe

Foot Valve

4.Remove the rotating part of the seal by first removing the square rubber drive ring (Figure 2) with a small screwdriver or knife blade. The remainder of the rotating portion is then loose and may be removed easily.

Figure 2

Horizontal Discharge

Gate Valve

Discharge Pipe

Union Tee

Suction Pipe

Priming the Pump

Priming Plug

Base

Foot Valve

 

Impeller

Face of

Impeller Hub

Sealing Washer

 

Shaft Shoulder

Rubber

 

Drive Ring

Fill the pump and suction piping completely with water before starting. Never operate the pump without water in it. The mechanical shaft seal and impeller can be damaged if run dry. If the pump does not deliver water in 20 - 30 seconds, some air may be trapped. Stop the pump, refill with water, and start again.

SERVICE THE PUMP

1.Remove the motor from the pump case.

2.Take off the motor end cover (canopy).

3.Remove the impeller from the motor. To keep the motor shaft from turning while unscrewing the impeller, hold shaft by inserting a 7/16” (11.1 mm) open-end wrench at the 7 o’clock position of the switch end of the motor, as shown in Figure1. The motor shaft has flat surfaces at that point.

5.Remove the seal plate, which is now free. Push the seal seat out of the seal plate from the back side. Clean the cavity, from which the seal seat was removed. Also clean the motor shaft.

6.Replace the seal plate on the motor.

7.Dip the seal seat in a soap solution or clear water for lubrication and install in the seal cavity. Press firmly in place with fingers, If it cannot be positioned with the fingers, put the cardboard washer (furnished with the seal) on the seal face and press the seat in place with a piece of pipe or other tool, as shown in (Figure 3). Remove the cardboard washer and clean the polished seal surface with a soft cloth. Be very careful not to damage or scratch the surface.

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Franklin DDS Series, DDD Series owner manual Service the Pump, Grounding the motor, Priming the Pump
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DDS Series, DDD Series specifications

The Franklin DDD Series and DDS Series represent a pivotal advancement in the landscape of industrial automation and control systems. Designed specifically for demanding operational environments, these series integrate cutting-edge technologies to deliver high performance and reliability.

The DDD Series is recognized for its robust design that caters to diverse industrial applications. A standout feature of the DDD Series is its ability to function seamlessly in harsh conditions, including extreme temperatures, humidity, and dust. This durability is complemented by advanced connectivity options, such as Ethernet/IP and Modbus, which facilitate integration into existing industrial networks, making it suitable for both new installations and retrofits.

One of the defining characteristics of the DDD Series is its versatility. The series includes various models equipped with diverse output options, including relay, analog, and digital outputs. This enables users to tailor their systems to meet specific automation requirements efficiently. Additionally, the DDD Series supports flexible I/O configurations, allowing users to expand their systems easily as their operational needs evolve.

On the other hand, the DDS Series is tailored for precise data acquisition and processing. With a focus on real-time monitoring, this series is ideal for applications requiring stringent performance metrics. Key features of the DDS Series include high-speed data logging capabilities, facilitating the capture of critical information necessary for performance analysis and optimization. The series is also equipped with intuitive user interfaces that simplify the monitoring process, enabling operators to access data promptly and make informed decisions.

Both series leverage state-of-the-art technologies, including machine learning algorithms and artificial intelligence. These integrations allow for predictive maintenance, which significantly reduces downtime by anticipating potential failures before they occur. Furthermore, cloud connectivity options enhance data management by allowing for remote access and analysis, fostering a proactive approach to system monitoring.

In summary, the Franklin DDD Series and DDS Series exemplify excellence in industrial automation. With robust design, advanced connectivity, and intelligent data processing capabilities, these series are indispensable for businesses looking to enhance efficiency, reliability, and performance across their operations. Whether for environmental resilience or precise monitoring and data analysis, these systems are designed to meet the evolving challenges of modern industry, making them essential tools for enhancing productivity and operational excellence.
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