Doosan 10/370, Operation And Maintenance Manual

Page: 58 / 96

Operating & Maintenance Manual Maintenance
58
Upon completion of maintenance tasks and prior to returning the machine into service,
ensure that:-
• the machine is suitably tested.
• all guards and safety protection devices are refitted.
• all panels are replaced, canopy and doors closed.
• hazardous materials are effectively contained and disposed of.
Protective Shutdown System
Refer to the diagnostic display codes table for a listing of shutdown conditions.
Low engine fuel level switch.
Test the low engine fuel level switch circuit as follows:
• Start the machine.
NOTE: Do not press the load button.
• Disconnect the switch, the machine should shutdown.
• Re-connect the switch.
Test the low engine fuel level switch by removing and operating the float manually.
WARNING
!
Never remove or replace switches when the machine is running.
Scavenge Line
The scavenge line runs from the combined orifice/drop tube in the separator tank, to the orifice
fitting located in the airend.
Check that the scavenge line and tube are clear of any obstruction each time the compressor
lubricant is changed as any blockage will result in oil carryover into the discharge air.