A tractor cooling installation has an engine cooling radiator (11) fixed relative to the tractor (16), a first inner bank of one or more coolers (12,13) pivoted on the radiator on a first frame (17) for upward pivoting movement away from the radiator about a first generally horizontal pivot axis (18) transverse to the tractor and a second outer bank of one or more coolers (14) also pivoted on the radiator on a second frame (20) for upward pivoting movement away from the first inner bank of coolers about a second generally horizontal pivot axis transverse to the tractor. A first cooler (12) from the first bank of coolers is mounted on the first frame (17) for pivoting upwardly with the first frame away from the radiator and a second cooler (13) which also forms part of the first bank of coolers is pivotally supported at an upper end from the first frame about a third generally horizontal axis (26). The lower end of the second cooler (13) is attached to the tractor by pivoting link means (27) so that as the first frame (17) pivots upwardly about the first axis (18) the second cooler pivots (13) relative to the first frame (20) about the third axis (26) to a location spaced from the first cooler (12) and the radiator (11). Preferably gas struts (23) and (24) are provided for holding the first frame (17) in a pivoted spaced relation to the radiator (11) and also holding the second frame (20) in a pivoted spaced relation relative to the first frame (17).
