. SAFETY PRECAUTIONS FOR MAINTENANCE of falling rocks or ground and stop position, then put 2 - 33 MAINTENANCE WITH ENGINE RUNN Stop the machin e on firm, lev el ground. Select a place wher e there is no hazard landslide s, or of flooding if the land is low Lower th mpletely to the engi After sto pping th e engine, ope rate work equipment control lever (1) 2 to 3 times fully to the RAISE and LOWER positions to release t he pressure inside th e hydraulic circuit, then set s afety lock leve r (2) to t he L OCK po LOCK blocks u nder the fron t and the rear of the tires.