Doosan DX140LC, Operation And Maintenance Manual

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OP000599 Inspection, Maintenance and Adjustment
4-24
Inspect the Structure for Cracks and
Faulty Welds
1. 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.
Check the Operation of All Switches
1. Verify the working condition of all switches before starting
the engine.
Check the Operation of All Exterior Lights,
Horn and Control Console Indicator
and Monitor Lights
1. Turn engine starter switch to the "I" (ON) position and
observe all of the indicator lights.
2. Restore operation of any light bulbs that do not turn "ON"
at this time.
3. Sound the horn. Repair or replace if required.
4. Turn "ON" and inspect all exterior work lights. Replace any
monitors, burned out bulbs or cracked or broken housings
or lenses.
Start Engine, Check Starting Ability, and
Observe Exhaust Color at Start-up and
at Normal Operating Temperature.
Listen for Any Abnormal Sounds