Figure 123  Emulsified oil in the detector base 
Fuel in the lube oil (a green colour in the lube oil)   may indicate a problem with the fuel oil heaters 
or leaking valves.  
 
 
Figure 124  Fuel in the lube oil 
Metal particles   may indicate wear due to high vibration levels. 
9.  Verify all vital and non-vital alarm actions at Mk6 Control Panel function correctly. 
Using the Test Menu, see section 3.5, check the correct operation of the Shutdown / Slowdown 
Relays, Common Alarm Relay and Fault Relay. 
CLEAR MAXIMUM AVERAGES & PEAK DEVIATION AVERAGE LEVELS AFTER TEST PROCEDURES.