Watson & Sons 520DUN user manual Rotor removal, Rotor replacement

Page 82

Rotor removal

￿Remove any tubing from the pumphead.

￿Open the flexible rotor cap in the centre of the rotor.

￿Undo and withdraw the central locating screw using a slotted screwdriver.

￿Pull the rotor hub off its dogged shaft.

￿Between the hub and the shaft is a split collet. If the collet is retained by the shaft, pull it off, loosening it if necessary by tapping it lightly. Avoid levering it off using a screwdriver or other tool. If the collet is retained within the hub, remove it, loosening it if necessary by reinserting the central locating screw a turn or two and tapping the screw head lightly.

Rotor replacement

￿Re-locate the split collet onto the drive shaft, rotating it until it fully engages the dog. Fit the rotor body over the drive shaft.

￿Open the flexible rotor cap in the centre of the rotor. Use a slotted screwdriver to tighten the central locating screw to a torque of 3Nm (2.2 lb-ft) to prevent collet slip during operation. When fitted correctly, the tube guide rollers should align with the outer face of the track. Close the flexible rotor cap.

￿Close the guard and ensure that the rotor is clear of the guard by observing the first few rotor rotations.

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

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Contents Contents Watson-Marlow 520DuN IP66/NEMA 4X pumpsPublication history 104 Decontamination certificate 105 Declaration of conformity Declaration of incorporationConditions Five year warrantyCased pumps, 620 cased pumps and 720 cased pumps ExceptionsInspection When you unpack your pumpPackaging disposal Components supplied 520DuN pump, IP66 Nema 4X modelsInformation for returning pumps StorageHow they work Peristaltic pumps an overviewSuitable applications Safety notes Page Pump specifications Manual control Remote control520DuN, IP66 Nema 4X model Analogue controlIP Ingress Protection and Nema definitions NemaPump specifications Standards StandardsHarmonised OtherDimensions 520DuN IP66/NEMA 4X model Unit weightsGeneral recommendations Good pump installation practiceDo’s and do not’s Page Connecting this product to a power supply Page Page Switching the pump on for the first time Start-up check listSpeed First-time start-up defaults LanguageAnalogue input User trimPump is now ready to operate Keypad functions in manual mode Manual operationPage Page Keypad beep Keypad lockManual operation and remote digital inputs and outputs Main menu Keypad functions in menu screensMain menu entry PIN-secure process protection Calibrate Head and tube TubeCalibration dose Page Setup Setup menuTrim Analogue Input 1 speed Program Trim Scaling strokeDisplay AlternativelyPump number BaudStop bits 18.7 Xon/XoffFlow units Run time Parameters are General alarmOutputs Run / stopPage Remote stop Page Auto-restart Set maximum speed Backlight18.15 ROM LanguageDefaults BeepSecurity code Pin out details ExitMemoDose To dispense a master doseChanging dosing speed To repeat the doseExit 22.1 520N module removal and replacement Automatic control wiringTo remove the 520N watertight module To replace the 520N watertight module Wiring up Page Do not strap the control and mains power cables together Speed analogue input Scaling analogue input Speed analogue output Tachometer frequency outputRun / stop input SwitchDirection input MemoDose input Tube monitor 520N module Wire colourAuto / manual toggle input Leak detection inputSupply voltages Outputs 1, 2, 3Important pump status outputs 22.14 RS485 input DC Voltage Max load Typical useHow to get into auto operation Automatic control and operationHow to get out of auto operation Emergency stop How to get into network operation Network control and operationHow to get out of network operation 24.1 RS485 command strings Command Parameters MeaningTroubleshooting Error codes Error condition Suggested actionDrive maintenance Drive sparesIdentification of parts 520R, 520R2 and 520RE pumpheads520REL/520REM/520REH Pumphead position, removal and replacement To reposition the trackRotor replacement Rotor removal29 520R, 520R2 and 520RE installation Opening the pumphead guard29.2 520R and 520R2 tube loading 29.3 520RE fitting the drain port Pressures Up to 4 bar 60 psi Up to 7 bar 100 psi 29.4 520RE Element loading520REL Pressures Up to 2 bar 30 psi 2mm and 6.4mm Industrial SanitaryPage Industrial quick-release connectors Sanitary 3⁄4in mini-Tri-clamp connectors29.5 520RE Element connection 30 520R, 520R2 and 520RE maintenance General guide to cleaning with solvents 31 520R, 520R2 and 520RE rotor settingsChemical Cleaning precautions Pumphead spares 520R/520R2 520REL/520REM/520REHPumping conditions Flow rates520R and 520R2 520RE Continuous tubing 220rpmElements Performance curves Page Page Page Tubing and element part numbers 6mm wall tubing for 520R pumpheads913.A008.024 4mm wall tubing for 520R2 pumpheadsInch Marprene Bioprene Pumpsil Inch Chem-Sure Sta-PureSanitary Inch Bioprene TM Sta-Pure 4mm wall elements for 520RE pumpheads102 Accessory Description Part code Pump Compatibility 35 520 series pumping accessories103 Publication history Trademarks104 RGA number Signature Your position Date Decontamination certificate105

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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