DX380LC-7
Inspection, Maintenance and Adjustment
4-38
All Controls and Linkages - Check
1.
With the engine at rated speed, operate all the controls.
2.
Follow cold weather hydraulic system warm-up
procedures.
3.
Note any slow operations or unusual movements.
Determine the cause and repair before operating.
NOTICE
Cold weather operation requires that operator fully warm up
the hydraulic oil before beginning machine operation.
Follow all warm up instructions listed in the Operating
Instruction section of this manual. Make sure to cycle oil
through all the components, including all cylinders, both
travel motors and the swing motor. Cold hydraulic oil in the
lines and components needs to be warmed before
beginning full operation. If this is not done, damage to the
cylinders or hydraulic motors can occur.