EGB Draining Procedure

Step 1:- isolate the diesel engine you want to drain the EGB.

1. Set engine to manual control on engine control room local panel.

2. Put the engine last in sequence on VDU

3. Start the PRE-LUB and JACKING pumps on MANUAL

3. On the engine, pull the emergency stop handle beside the local control stand down. Lock out tag out the handle in the down position.

4. CLOSE the starting air valve and lock out in the closed position.

5. OPEN the starting air drain and lock with provided key lock.

Step 2:- Stop and isolate the EGB Circulation pump

In the relevant 11kv switch board room. Stop the EGB pumps by the emergency stop, Open the breaker and switch the control to local. Lock out the breaker with scissors clamp.

Step 3:- Throttle the inlet valve to the EGB circ pump until almost closed

This valve is left open to keep the pump warm. To prevent the seals from leaking

Step 4:- SHUT the outlet valve of the EGB circ pump, and then lock out tag out with cable and locking clamp.

Step 5:- SHUT both inlet valves to the EGB in the engine casing. Lock out both valves with one long cable and locking clamp.

Step 6:- SHUT both outlet valves to the EGB, lock both valves together with one long cable and locking clamp.

Step 7:- CRACK OPEN the drain and the vent on the EGB

OVERBOARD VALVES MUST BE OPEN to drain the EGB

Warning do not open to much this will cause steaming on A deck form the drains.

Step 8:- OPEN the drain line after the outlet of the circ pump. This will prevent banging when filling up