Komatsu PC138US-11 Operation & Maintenance Manual page 236

Hydraulic excavator
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MACHINE OPERATIONS AND CONTROLS
For attachment operations (if equipped), change the work-
ing mode to the attachment mode.
16. Check that hydraulic oil temperature caution lamp (7) dis-
plays correct temperature.
Display (A) when temperature is correct: Caution lamp
background (C) is blue.
Display (B) when temperature is low: Caution lamp
background (C) is white.
If the caution lamp is not displaying the correct tempera-
ture, repeat the work equipment operation in step 6 until
the lamp displays the correct temperature.
If hydraulic oil temperature caution lamp (7) displays the correct temperature, the hydraulic equipment warm-up
operation is completed.
After checking that hydraulic oil temperature caution lamp (7) displays the correct temperature, perform the op-
eration after completion of the warm-up operation.
METHOD FOR OPERATION AFTER COMPLETION OF WARM-UP OPERATION
1.
Check that hydraulic oil temperature caution lamp (7) dis-
plays proper temperature.
Display (A) when temperature is proper: Caution lamp
background (C) is blue.
Display (B) when temperature is low: Caution lamp back-
ground (C) is white.
2.
Press the working mode selector switch of the machine
monitor to select the working mode to be used.
For change of the working mode, see "WORKING MODE
SELECTOR SWITCH (3-45)".
3-166
WENAM00111
OPERATION

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