DX380LC-7
Inspection, Maintenance and Adjustment
4-36
Mirrors - Check
Structure - Inspect
During the daily walk-around inspection and when greasing the
machine, look for any visible damage to the machine. Repair or
replace any damaged parts before operating the machine.
All Switches and Travel Alarm (If
Equipped) - Check
Verify the working condition of all switches before starting the
engine.
Safety Lever - Check
A safety lever has a pivoting safety lever that deactivates the
work group, swing and travel control functions.
When the safety lever is moved down into "LOCK" position, the
work group, swing and travel control functions are deactivated.
When the safety lever is moved up into "UNLOCK" position, the
work group, swing and travel control functions can be operated.
Inspection and Maintenance of the Safety Lever
1.
Check for and keep bystanders away from the work area.
Sit in operator's seat and fasten seat belt.
2.
Start engine and move safety lever up into "UNLOCK"
position.
3.
Operate the work group (joystick) levers in all directions to
check that boom, arm, bucket (or other attachment) and
swing functions operate correctly. Also, check that travel
controls operate properly.
NOTE:
Hydraulic system must be warmed up to
operating temperatures.
4.
Raise the boom and arm so the bucket (or other
attachment) is about 1 m (3 ft.) off the ground.
Lock
Unlock
EX1300566
Figure 30
WARNING
AVOID DEATH OR SERIOUS INJURY
The Safety Lever must deactivate the work group, swing
and travel control functions when the safety lever is moved
down into "LOCK" position.
Contact your DOOSAN distributor immediately if the
controls do not deactivate. DO NOT MODIFY THE SYSTEM.
