Keep a Massey Ferguson 5440 from the 5400 series in good order with more than 190 parts from this page, from electrics and trailer couplings to lighting.
Work lamps that flicker, a switch that only works while you hold it, a relay that clicks but switches nothing. On the Massey Ferguson 5440, a lot of the jobs come down to the electrics in the cab. More than 190 parts are matched to this tractor here, from GRANIT and from HELLA, Walterscheid, ROCKINGER and Scharmüller.
There are rocker switches, for example for the rear work lamp with a warning light, push button switches, relays and control knobs, plus work lamps in several shapes.
When a work lamp cuts out now and then, the lamp itself is often not the culprit. Check the relay and the plug first. A relay with burnt contacts or a corroded connector causes exactly that kind of fault. Always replace a relay with one that has the same pin layout, and put a little contact grease on the plug before pushing it back on.
Work lamps come as flood lamps and as spot lamps. A flood lamp lights the ground around the tractor, useful when hitching up and working in the yard. A spot lamp throws its beam further ahead, which helps in the field or on unlit lanes. On a 5440, combining the two often works well, with spots at the front and floods at the rear of the cab. Check the mounting when replacing one, since a flush-fit lamp sits differently from a surface-mounted lamp on a bracket. And if the air conditioning needs a new compressor, always fit a new drier and have the system evacuated before it is recharged.
Read the type plate before you order. The 5400 range has many models that barely differ from the outside. On switches and relays the number is usually on the back or on the housing. Take that reference number and compare it with the product details. For a drawbar, measure the rail width of the existing bracket.
These models from the 5400 range have pages of their own:
Any other model from the make is reachable through Massey Ferguson parts.