MAINTENANCE PROCEDURE MAINTENANCE Method of Washing 1. Set the machine at an angle. For details, see “Method of Setting Machine at Angle (4-42)“ 2. Swing the upper structure slowly so that water drain holes (3) in the cab floor are at a low position. 3. Lower the work equipment to the ground and set the machine in a stable condition. 4. Set safety lock lever (1) to LOCK position (L) and stop the engine. 5. Remove the floor mat holder plate (4). 6. Remove the floor mat. 7. Remove the cap from water drain port (3). 4-40