. SAFETY PRECAUTIONS FOR MAINTENANCE 2 - 35 STOP ENGINE BEFORE CARRYING OUT INSPECTION AND MAINTENANCE Lower th e work equipment complet ely to t he ground a nd stop the engin e before performin g any in spectio n and maintenance. starting positio equipme nt contro l lever bac k and f orth, lef t and right at the full stroke 2 to 3 time s to elimin ate the remaini ng internal pr essure in the hyd raulic ci rcuit , and th en mov e lock l ever ( 1) to the LOCK position ( Check t conducte d. (Wait for appro x. one engine st does not arting s sound, i witch t is key a not acti nd press vated.) Put block s under the t rack to preven t the m achin e from moving.