Komatsu PC290LC-6K Operation & Maintenance Manual page 38

8. PRECAUTIONS FOR MAINTENANCE
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE AT
HIGH TEMPERATURE OR HIGH PRESSURE
• Immediately after stopping operations, the engine cooling water and oil at all parts is at high temperature
and under high pressure.
In this condition, if the cap is removed, or the oil or water are drained, or the filters are replaced, this may
result in burns or other injury. Wait for the temperature to go down, then carry out the inspection and main-
tenance in accordance with the procedures given in this manual.
Cleaning inside or cooling system
Checking cooling water level, hydraulic oil level
Checking lubricating oil level, adding oil
"PERIODIC MAINTENANCE."
Changing oil, replacing filters
"PERIODIC MAINTENANCE."
PRECAUTIONS WHEN USING HIGH PRESSURE
GREASE TO ADJUST TRACK TENSION
Grease is pumped into the track tension adjustment system under high pressure. If the specified procedure
for maintenance is not followed when making adjustments, the plug or grease fitting may fly out and cause
damage or personal injury.
• When loosening the grease drain plug, never loosen it more than one turn.
• Never put your face, hands, feet, or any other part of your body directly in front of any grease drain
plug or valve.
Adjusting track tension
ROTATING FAN AND BELT
• Keep away from rotating parts and be careful not to let anything get caught in them.
• If your body or tools touch the fan blades or fan belt, they may be cut off or sent flying, so never touch any
rotating parts.
1-26
see 24.2 "WHEN REQUIRED."
see 24.5, 24.6, 24.7, 24.8, 24.9
see 24.5, 24.6, 24.7, 24.8, 24.9
see 24.2 "WHEN REQUIRED."
WARNING: For reasons of safety, al-
ways follow these safety precautions.
see 24.3 "CHECK BEFORE STARTING."