WORKSHOP MANUAL W26 Wärtsilä NSD Nederland B.V. Engine type W26
Chapter 1.7
Subject WECS 2000
Issue date June '00
RT 3. Delay time luboil blocking. Delay time luboil blocking on 10 seconds. 1. 2. 3. 4.
Turn RT3 a few times to the right. Unomat on 200 Hz (far above the 115 Hz) Take out the + pin from the Unomat. Connect the + pin to the Unomat and count the time till the yellow luboil shutdown led is out. time < 10 sec --> adjust P3 to the right time > 10 sec --> adjust P3 to the left 5. Put the setting of RT3 on 10 seconds.
RT 4.
Overspeed stop.
1. Be sure that the red overspeed led is out. Reset with local shutdown reset. 2. Put the Unomat on 452.3 Hz (1000 rpm engine) and screw the RT 4 till the red led is burning. Overspeed is 118% nom.. 3. Put the Unomat on 440 Hz, and adjust RT 4 and press local shield the reset button. Check the setting by increasing to 1180 rpm=452.3 Hz. RT 5.
Speed switch 1.
1. Speed 1300 rpm-->115 Hz 2. Put the Unomat on 115 Hz and turn RT5 till the yellow speed switch 1 led is burning. 3. Check the setting by increasing to 300 rpm=115 Hz. RT 6.
Speed switch 2.
1. Put the unomat on 192 or 288 Hz and adjust RT6 till the yellow speed switch led is burning. 2. Check the setting by increasing to 192 Hz=500 rpm or 288 Hz=750 rpm.
Note: Seal the trimmers with a drop of lacquer after setting the relay module. Check of Backup Engine Speed value in WECS LDU Check correct display of Engine speed backup (ST174) in appropriate screen of de LDU of the WECS (Board 2)
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