. SAFETY SAFETY MAINTENANCE INFORMATION STOP ENGINE BEFORE CARRYING OUT MAINTENANCE 2 - 33 Stop the ma chine on firm, level ground. Select a pl ace where the re is no hazar landslides, or of flooding if the land is low. Lower the w the engine. Turn the sta equipment c ontrol lever ba ck and f orth, lef t an d right at the full stroke 2 to 3 times to elimi nate the remaining i nternal pr essure in t he hydra up loc LOCK posit Check that power conducted. (Wait for appr ox. one minute afte r turning engine start ing switch key and pres s the horn s witch. If th e horn does not so und, it is not a ctivated.) Put blocks u nder the track to preven t the machine from m oving.