Komatsu 830E Shop Manual page 26

DURING MAINTENANCE
PERSONNEL
• Only authorized personnel can service and repair the machine. Extra precaution should be used when
grinding, welding, and using a sledge-hammer.
ATTACHMENTS
• Place attachments that have been removed from the machine in a safe place so that
they do not fall. If they fall on you or others, serious injury could result.
WORK UNDER THE MACHINE
• Always lower all movable work equipment to the ground or to their lowest position
before performing service or repairs under the machine.
• Always block the tires of the machine securely.
• Never work under the machine if the machine is poorly supported.
KEEP THE MACHINE CLEAN
• Spilled oil or grease, or scattered tools or broken pieces are dangerous
because they may cause you to slip or trip. Always keep your machine clean
and tidy.
• If water gets into the electrical system, there is danger that the machine may
not move or may move unexpectedly.Do not use water or steam to clean the
sensors, connectors, or the inside of the operator's compartment.
• Use extreme care when washing the electrical control cabinet. Do not allow
water to enter the control cabinet around the doors or vents. Do not allow
any water to enter the cooling air inlet duct above the electrical control cabinet. If water enters the control
cabinet (through any opening or crevice) major damage to the electrical components is possible.
• Never spray water into the rear wheel electric motor covers. Damage to the wheel motor armature can occur.
• Do not spray water into the retard grids. Excess water in the retard grids can cause a ground fault, which will
prevent propulsion.
RULES TO FOLLOW WHEN ADDING FUEL OR OIL
• Spilled fuel and oil may cause slipping. Always clean up spills immediately.
• Always tighten the cap of the fuel and oil fillers securely.
• Never use fuel for washing any parts.
• Always add fuel and oil in a well-ventilated place.
A3-12 General Safety and Operating Instructions A03020