PROCEDURE
1 Do each month an engine start in the LOCAL MANUAL CONTROL mode.
2 Do each three months the checks that follow.
2.1 Do a check of the level switches as follows:
2.1.1 Do a check of the electrical cable junctions.
2.1.2 Remove the terminal cover from the sensor.
2.1.3 Change the selector switch from MAX to MIN.
NOTE: An alarm will be activated and the LED display on the sensor
shows red.
2.1.4 Set the selector switch back to the original position.
2.1.5 Install the terminal cover to the sensor.
2.2 Do a check of the power supplies for the items that follow:
•
FCM-20
•
ACM-20
•
IOM-10
•
Fuel pump actuators.
2.2.1 In the power supply box E85, make sure that all related circuit breakers
are set to ON.
2.2.2 At the main switchboard (plant side), set to OFF then set to ON the AC
#1 power supply. The WECS−9520 must stay in full operation.
NOTE: Do this step only, if the engine is stopped, eg during the engine
start procedure.
2.3 Do a check of the pressure switch PS5017C as follows:
NOTE: If the pressure switch PS5017C on the 3/2-way valve (35-4325_E0_3)
is defective, you cannot start the engine in LOCAL MANUAL
CONTROL mode.
2.3.1 On the WECS−9520 manual control panel, push the LOCAL MANUAL
CONTROL button.
2.3.2 Do the checks that follow of the indications of the turning gear:
•
Engaged = switch open
•
Disengaged = switch closed.
2.4 Do a check of the starting air control valves as follows:
2.4.1 In the remote control, set to OFF one of the starting air control valves
activated by the FCM−20 of cylinder No. 1 or No. 2 (user parameter,
function Start Valves Checking).
2.4.2 Do an engine start with starting air (AIR RUN) only, or slow turning.
2.4.3 Do the test procedure again with the other starting air control valve.
NOTE: After each start, the WECS−9520 automatically activates the
two starting air control valves.
CLOSE UP
• None
X92DF
AA00-0000-00AAB-131A-A
Operation Manual Do regular checks for WECS-9520
Winterthur Gas & Diesel Ltd.
- 411 - Issue 002 2020-08
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