. SAFETY PRECAUTIONS FOR MAINTENANCE to to 2 - 37 TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNIN G To prevent per sonal injury, do not carry o ut maintenance with t he engine running. If maint enance must be carrie out with the en gine running, carry out the operation with at leas t two workers and do as fol One worker must always sit in the oper ator's seat and be rea to stop the contact with engine at any time. All the other workers. ing out operations near th maint When carry rotating part be careful n s, there is a hazard of bein g caught in the parts, ot to come close. Never drop or insert tools or other obje cts into the fan , fan b ting parts.
There is dang parts and break or be sent Release the residual pressure from th e hydraulic system, a place Lock l residual oil PRESSURE ever (1) to its LOCK positio n (L). For releasing of t pressure, see the MET HOD OF RELEASIN IN HYDRAULIC CIRCUIT (PAGE 4-78)" . Do not touc h the control levers or ped als. If it is necessary operate the fellow worke control levers or pedals, alw ays give a signal to yo rs and have them move to a safe place. INSTALLING, REMOVING, OR STORING ATTACHMENTS Appoint a leader before starting or attachments.
removal or installati stallati operations f Place attach ments that have been remo ved from the m achine a stable co prevent una ndition so that they do not fall. And take steps uthorized persons from ent ering the storage are PRECAUTIONS WHEN WORKING AT HIGH PLACES When working at high places, use a step ladder or other stand to ensure that the work can be carried out safely.