Komatsu PC220LC -8 Operation & Maintenance Manual page 68

OPERATION
Caution Monitors
If the warning monitor lights up red, stop operations as soon as possible and perform inspection and maintenance of the
applicable location. If the warning is ignored, it may lead to failure.
These are items that should be observed while the engine is running. If any abnormality occurs, the screen displays
the item that needs immediate action.
If there is an abnormality, the monitor for the abnormal location lights up red.
(1) Engine coolant temperature monitor
(2) Hydraulic oil temperature monitor
(3) Fuel level monitor
Engine Coolant Temperature Monitor
If this monitor (1) shows low-temperature display (A), carry out the
warm-up operation. For details, see "Engine Warm Up (PAGE
3-136)".
Monitor (1) will show normal display (B), so carry out the warm-up
operation for the engine.
Display (A) at low temperatures: Monitor background (D) is white
Display (B) at correct temperatures: Monitor background (D) is
Display (C) when condition is abnormal: Monitor background (D)
CAUTION
(4)
(5)
(6)
blue
is red
DETAILED CONTROLS AND GAUGES
Charge level monitor
Air cleaner clogging monitor
Water separator monitor
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