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MACHINE OPERATIONS AND CONTROLS
6.
Operate the work equipment to warm up the hydraulic
components.
NOTICE
When the work equipment is operated, take care that it
does not interfere with the machine or ground.
1)
Move R.H. work equipment control lever (5) slowly in
the direction of bucket CURL position (D). Operate the
lever to the end of its stroke and hold it in the position
for 30 seconds.
2)
Move R.H. work equipment control lever (5) slowly in
the direction bucket DUMP position (C). Operate the lever to the end of its stroke and hold it in the
position for 30 seconds.
3)
Next, move L.H. work equipment control lever (6) slowly in the direction arm IN position (B). Operate
the lever to the end of its stroke and hold it in the position for 30 seconds.
4)
Move L.H. work equipment control lever (6) slowly in the direction arm OUT position (A). Operate the
lever to the end of its stroke and hold it in the position for 30 seconds.
7.
Repeat the operation of step 6 for 5 minutes.
8.
Check that hydraulic oil temperature caution lamp (7) displays proper temperature.
If the hydraulic oil temperature caution lamp is not displaying the proper temperature (it is displaying low
temperature), repeat steps 6 to 7 until the monitor displays the proper temperature.
•
Display (A) when temperature is proper: Caution lamp
background (C) is blue.
•
Display (B) when temperature is low: Caution lamp
background (C) is white.
9.
Check that engine coolant temperature caution lamp (1)
displays the proper temperature.
•
Display (A) when temperature is proper: Caution lamp
background (C) is blue.
•
Display (B) when temperature is low: Caution lamp
background (C) is white.
If it displays low temperature, perform additional warm up
of the engine until engine coolant temperature caution
lamp (1) displays the proper temperature.
For detail, see "METHOD FOR ENGINE WARM-UP OP-
ERATION".
10. Check that the hydraulic oil temperature caution lamp and engine coolant temperature caution lamp display
the proper temperature, then check that all the instruments, caution lamps, and pilot lamps on the machine
monitor are in the following conditions.
3-182
OPERATION
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