Doosan G10WMI-2D-T2, Installation, Operation & Maintenance Manual

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Operation & Maintenance Manual Maintenance
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Diagnostic Lamps
On Keystart models, each month the diagnostic lamps should be tested. With unit shutdown
and emergency stop pushed, turn the Engine Start Switch to “START”, or pull the ESTOP to
apply power to the controller. All diagnostic lamps should glow; If not, refer to troubleshooting.
Diagnostic Trouble Code (DTC) Display
On models with Electronic (ECU) engines, each month, the DTC display should be tested.
When unit is started, the DTC Display should show dashes (----) or a trouble code if there is a
fault condition.
Emergency Stop Switch
Each month, check the operation of the emergency stop switch. Running with no electrical
loads and the main breaker “ON”, press the EMERGENCY STOP SWITCH. The unit should
shutdown immediately and the main breaker should trip with cranking disabled. Emergency
Stop Switch must be reset (pull to unlatch) for operation.
Voltage Selector Door Interlock Switch
Every three months or 250 operating hours, the interlock switch should be checked. Running
with no electric load, open the VOLTAGE SELECTOR door. This will shutdown the engine and
trip the main breaker. To reset, close the door.
Engine Protection Shutdown System
The operation of the engine protection shutdown system should be checked, whenever it
appears not to be operating properly. The three devices involved in this protective shutdown
system are the engine coolant high temperature switch/sensor, the engine oil pressure switch/
sensor and the low fuel switch.
The engine oil pressure switch/sensor prevents the engine from operating with low oil
pressure. Once a month, remove a wire from the engine oil pressure switch/sensor to check
the shutdown system for proper operation. Do the same for the wire on the engine temperature
switch/sensor.
High Containment Fluid Alarm System
The operation of the high containment fluid alarm system should be checked every 3 months
or whenever it appears not to be operating properly.
The level switch is located at the lower end of a pipe at the bottom of the containment tank.
Test the switch by unfastening the u-bolts holding the pipe, and then inverting the pipe to allow
the switch float to fall.
The “High Containment Level” LED should illuminate. Replace any defective switch.
Drain the containment area using the drain plug at either end of the containment basin.