A mobile processing plant (10) includes a processing asembly (13) mounted on a chassis (11). A primary discharge assembly (18) is operative to transport processed material away from an outlet (15) of the processing assembly. The discharge assembly (18) includes a discharge assembly frame (19) which supports transport mechanisms (20) and (21). The discharge assembly extends from an underside of the chassis (11) with the frame being releasably mounted to the chassis (11) so as to enable the discharge assembly to be released and lowered from the chassis so as to allow access to transport surfaces of transport mechanisms.
