OP000598
3-9
Operation
Hydraulic System Warm-up
The correct operating temperature of the hydraulic oil is 50° -
80°C (120° - 175°F). Make sure to follow the procedures listed
here for hydraulic fluid warm-up.
1.
Run engine for approximately five minutes set at the
middle of the speed range, without a load.
2.
Set safety lever (1, Figure 14) on "UNLOCK" position.
3.
Slowly cycle boom, arm and bucket cylinders about five
times without a load to circulate the oil through the system.
Do this for five minutes.
4.
Check for clearance and fully raise the front attachment.
Swing clockwise 3 revolutions. Swing counterclockwise 3
revolutions.
5.
Travel forward and reverse at low speed for two
revolutions of the drive sprocket.
WARNING!
If a problem or abnormal operation occurs, immediately
shut down engine. Allow excavator to reach normal
operating temperature before starting work, especially in
cold weather.
HAOB410L
Figure 13
FG000093
1
Figure 14
Figure 15
FG000380
Summary of Contents for DX140LC
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Page 67: ...OP000597 2 3 Operating Controls ...
Page 87: ...OP000597 2 23 Operating Controls ...
Page 122: ...OP000597 Operating Controls 2 58 CD Player Optional AST DIR FG000109 Figure 123 ...
Page 184: ...OP000598 Operation 3 48 ...
Page 193: ...OP000599 4 9 Inspection Maintenance and Adjustment ...
Page 272: ...OP000599 Inspection Maintenance and Adjustment 4 88 ...
Page 278: ...OP000600 Transportation 5 6 ...
Page 284: ...OP000013 Troubleshooting 6 6 ...
Page 292: ...OP000601 Specification 7 8 ...