28.1Pumphead position, removal and replacement

Always isolate the pump from the mains power sup- ply before opening the guard or performing any posi- tioning, removal or maintenance activity.

The pumphead track can be fitted in one of three orientations to provide right, up or down input/output port positions, whichever is convenient. Position the pump- head so that the tube ports face up or down only where the drive is placed on the bench edge - otherwise the pump tube or the hinged guard will impact the bench. Do not position the pumphead so that the tube ports face the keypad. Doing so may result in a safety risk.

The pump can be configured for clockwise or counter-clockwise rotor rotation. Please note, however, that tube life will be greater if the rotor rotates clockwise; and that performance against pressure will be maximized if the rotor rotates counter-clock- wise.

To reposition the track

￿Open the pumphead guard as described under 27.1 Opening the pumphead guard, below.

￿Remove the rotor as described under Rotor removal, below.

￿Undo and withdraw the four track-retaining screws using a slotted screwdriver.

￿Remove the track.

￿Relocate the track in the desired position. Replace and tighten the track-retain- ing screws.

￿Replace the rotor as described under Rotor replacement below.

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

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Watson & Sons 520DUN user manual Pumphead position, removal and replacement, To reposition the track
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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.

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