A mobile work machine which includes a lower protective belly plate and a machine component drawer located above the belly plate. The drawer has a bottom with at least one fluid drain aperture. A fluid drip retention tray is removably positioned below the drawer in a protected space above the belly plate. The machine component drawer and drip retention tray may each have a magnetically attractable bottom and magnets means preferably affixed to the bottom of the drawer to magnetically support the tray below the drawer. A drip retention tray is also provided for a wheel steering cylinder, the tray having a curved retainer portion which extends upwardly around the cylinder for a distance sufficient to retain the tray on said cylinder.