. SAFETY PRECAUTIONS FOR MAINTENANCE STOP ENGINE BEFORE CARRYING OUT INSPECTION AND MAINTENANCE 2 - 31 Lower the work equipment c ompletely to the ground and stop the engine before performing any inspection a nd maintenance. Turn tarting work equipmen t contro l lever to th e RAISE and LOWER position 2 or 3 times re peatedly t o r elea se the r emaining pressure in the hydraulic circuit, then set p arking brak e lever (1) work equipmen t lock le ver (2) to t he LOCK position (L) Put blocks under the track to prevent the machine from moving.