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Farm Machinery
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Electric fan on tractor engine?
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<blockquote data-quote="njneer" data-source="post: 7319536" data-attributes="member: 65582"><p>Most modern tractors combines and Foragers now have a combination of the two, still a viscous fan arrangement but it is completely controlled electronically , reducing the fan input to the bare minimum cooling requirement to maximise power output from the engine by minimising the power draw.</p><p>As others have said there is a substantial power draw when a viscous fan is in full flow So by being able to control it to only when it is needed gives better and full use of the available power and reduces unnecessary fuel use.</p><p>Some use it to assist engine braking by fully engaging the fan Under braking to increase the drag load on the engine to assist to pull the transmission down.</p><p>Default position on these systems is “Full Fan” should there be a fault to ensure maximum cooling as the default position.</p></blockquote><p></p>
[QUOTE="njneer, post: 7319536, member: 65582"] Most modern tractors combines and Foragers now have a combination of the two, still a viscous fan arrangement but it is completely controlled electronically , reducing the fan input to the bare minimum cooling requirement to maximise power output from the engine by minimising the power draw. As others have said there is a substantial power draw when a viscous fan is in full flow So by being able to control it to only when it is needed gives better and full use of the available power and reduces unnecessary fuel use. Some use it to assist engine braking by fully engaging the fan Under braking to increase the drag load on the engine to assist to pull the transmission down. Default position on these systems is “Full Fan” should there be a fault to ensure maximum cooling as the default position. [/QUOTE]
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Electric fan on tractor engine?
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