￿The spring-loaded tube clamps must grip the tubing tightly enough to stop it moving in and out of the pumphead but must not over-squeeze the tube and throttle fluid flow. The tubing clamps are fitted with yellow sliders which can be clicked into two positions while the clamps are held open: the outer position will allow the clamps to grip the tube tightly; the inner will grip the tube loose- ly. Adjust the sliders to prevent tube movement during a few trial rotations of the rotor.

￿Close the guard, pushing it fully home until the latch engages.

￿Connect suitable pipework to the pumphead tubing using appropriate connec- tors.

￿Remember, when using Marprene or Bioprene tubing, re-tension the tubing after 30 minutes of running, as it may grow in length as it beds in. Re-tension so that 225mm (8 7⁄8 in) of tubing sits between the inside faces of the spring- loaded parts of the tube clamps.

29.3 520RE: fitting the drain port

The drain port is an optional extra, supplied with the pumphead. It is strongly rec- ommended that users fit it before the pump is operated. It may be done with the rotor in position or removed.

￿Remove the drain plug from the bottom of the pumphead. The drain plug is flexible. It may be removed using finger pressure from within the pumphead, or by accessing its flange from outside with a fingernail.

￿Drop the port into position from inside the pumphead.

￿Fit the supplied port retaining nut (3⁄8 in BSP) and finger-tighten.

￿Fit drainage pipework as required (not supplied).

Watson-Marlow 520DuN IP66/NEMA 4X User Manual

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Watson & Sons 520DUN user manual 29.3 520RE fitting the drain port
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520DUN specifications

Watson & Sons 520DUN is a state-of-the-art model that has garnered attention for its exceptional performance and innovative technologies. Designed for agricultural applications, this machine combines durability, efficiency, and ease of use, catering to the needs of modern farmers.

One of the standout features of the 520DUN is its robust engine. Equipped with a high-performance diesel engine, it offers impressive horsepower, allowing it to handle a variety of demanding tasks with ease. This engine is designed for fuel efficiency, ensuring that operators can complete their work without frequent refueling. The powertrain is complemented by an advanced transmission system that enables smooth gear shifts, enhancing operator comfort during long hours of operation.

The 520DUN also boasts a remarkable load capacity, making it an ideal choice for transporting heavy materials. Its rugged build quality ensures that it can withstand the rigors of daily use, providing a reliable solution for farmers and contractors alike. The robust chassis and reinforced components were designed to maintain stability and control, especially when navigating uneven terrain.

Incorporating cutting-edge technologies, the Watson & Sons 520DUN features precision farming capabilities. With GPS integration, operators can efficiently manage their fields, optimizing planting and harvesting processes. This technology not only increases yield but also minimizes inputs, making farming more sustainable and economically viable.

User ergonomics were a significant consideration in the design of the 520DUN. The operator's cabin is spacious and well-equipped with intuitive controls, providing a comfortable working environment. Operators will appreciate the advanced display panel that offers real-time data on performance metrics, fuel consumption, and maintenance reminders. This allows users to keep the machine in peak condition and react to any issues promptly.

Safety is also paramount in the design of the 520DUN. It features reinforced safety measures, including roll-over protection systems and visibility enhancements, ensuring operator safety during operations.

In summary, the Watson & Sons 520DUN represents the pinnacle of agricultural machinery with its powerful engine, remarkable load capacity, precision technology, and ergonomic design. It is tailored for those who seek reliability and efficiency in their agricultural endeavors, making it a noteworthy choice in today's competitive market.
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