17. GUIDES TO MAINTENANCE Warning tag: Attach the warning tag to the starting switch or other appropriate control lever to prevent anyone from starting the engine during maintenance. Obey precautions: During the operation, always obey the precautions on the safety label attached to the machine. Welding instructions: Turn off the engine starting switch. Do not apply more than 200 V continuously. Connect grounding the cable within 1 m (3.28 ft) from the area to be welded. Avoid seals or bearings from being between the area to be welded and the position of the grounding point. Never weld any pipe or tube containing fuel or oil. Fire prevention:
Use nonflammable cleaner or light oil for cleaning parts. Keep flame or cigarette light away from light oil. Clamp faces: When O-rings or gaskets are removed, clean the clamp faces and replace the O-rings and gaskets with new ones. Be sure to fit O-rings and gaskets when assembling. Objects in your pockets: Keep your pockets free of loose objects which can fall out and drop into the machinery; especially when you work on the machinery while bending over it. Checking undercarriage: When working in rocky areas, check for damage to the undercarriage and for looseness, flaws, wear and damage in bolts and nuts. Precautions when washing machine: Never spray steam or water directly at the radiator.
Do not allow water to get on any electrical component. Controller: The controller for the machine monitor may be mistakenly actuated by interference from external electric waves> For this reason, when installing a radio or other such device, please consult your Komatsu distributor. 3-3