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OPERATION
11. Check that hydraulic oil temperature monitor (7) is display-
ing green.
If the hydraulic oil temperature monitor is not displaying
green (it is displaying white), repeat Steps 6 to 10 until the
display is green.
12. Check that engine water temperature monitor (1) displays
green.
If it displays white, carry out additional warm up of the
engine until engine water temperature monitor (1) displays
green.
For details of the procedure, see "Engine Warm Up (3-95)".
13. Check that the hydraulic oil temperature monitor and
engine water temperature monitor are displaying green,
then check that all the gauges and caution monitors on the
machine monitor our in the following status.
q Radiator coolant level monitor (8): OFF
q Charge level monitor (9): OFF
q Engine oil pressure monitor (10): ON
q Engine oil level monitor (11): OFF
q Air cleaner clogging monitor (12): OFF
q Engine pre-heating lamp(13): OFF
q Engine water temperature gauge (14): Indicator in
green range
q Engine water temperature monitor (1): Green display
q Hydraulic oil temperature gauge (15): Indicator in
green range
q Hydraulic oil temperature monitor (7): Green display
q Fuel gauge (16): Indicator in green range
q Fuel level monitor (17): Green display
14. Check for abnormal exhaust gas color, noise, or vibration.
If any problem is found, contact your Komatsu distributor.
In cold temperatures (ambient temperature below 0°C), even when the hydraulic oil temperature monitor
displays green, carry out additional Step 15 to warm up all the hydraulic equipment.
MACHINE OPERATIONS AND CONTROLS
3-99
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