. SAFETY PRECAUTIONS FOR MAINTENANCE landslides, falling stop brake the to the then under the tires. 2 - 33 STOP ENGINE BEFORE CARRYING OUT MAINTENANCE Stop th e machine on firm, level groun Select a place wher no hazard rocks, o r flooding. Lower t he work the eng ground and After sto pping t he engine, operate wor k equipment control lever (1) 2 to 3 time s f ully to th e RAISE a nd LOWER positions to release the pressure insid e the hydraulic circuit, hen work equipm ent lock lever (2) to the LOCK position. rking parking brake, witch to ocks ON position the fron an apply ear of