. SAFETY PRECAUTIONS FOR MAINTENANCE STOP ENGINE BEFORE CARRYING OUT INSPECTION AND MAINTENANCE does not sound, it is not activated.) 2 - 36 Lower th e work equipment completely to t he ground an d stop the engin e before performin g any i nspectio n and maintenance. starting 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 t he hy draulic c ush LOCK po sition (L Check t hat the conducte d. (Wai t for appro x. one engine st arting s witch key a nd pres main after turning Put block s under the track t o preve nt the m achin e from m oving.