Operation
0850
−
1/A1
Winterthur Gas & Diesel Ltd.
Failure Text
ME scavenge air pressure meas. fail. diff. high (ID 10)
FCM
−
20 No.
LED
Failure ID
Display
Indication
#03 and #04
AI2
10
10
Cause The pressure transmitters PT4043C and PT4044C have a difference of more than 0.2 bar
(failure signal is released after 5 seconds)
Procedure
⇒
In the Operator Interface, compare the two scavenge air pressure indications with the
pressure gage. This will help you find the pressure transmitter that gives a different signal.
⇒
In E12, E95.03 and E95.04, do a check of the cables.
⇒
Adjust the applicable pressure transmitter, or replace it if necessary.
Failure Text
ME servo oil pressure sensor #1+#2 meas. fail. (ID 17)
FCM
−
20 No.
LED
Failure ID
Display
Indication
#01 and #02
AI2
17
17
Cause The two sensor signals are less than 2 mA or more than 22 mA (failure signal is released
after 3 seconds).
Procedure
⇒
On the servo oil rail, do a check of the pressure transmitters PT2071C and PT2072C for
damage.
⇒
Do a check of the 24 VDC supply on the plugs X27 (terminals 94+/96
−
) in E95.01 and E95.02
and on the transmitter plugs.
⇒
If there is a 24 VDC supply, do a check of the cables to E95.01 an E95.02.
⇒
Repair or replace damaged cables between the pressure transmitter and E95.01 or E95.02.
⇒
Use a multimeter to do a check of the sensor signal (X27 terminal 95).
⇒
Replace a minimum of one pressure transmitter immediately.
FCM
−
20 No.
LED
Failure ID
Display
Indication
#01 and #02
AI2
17
17
Cause The sensor power supply has a short circuit (red LED)
Procedure
⇒
Disconnect the pressure transmitters PT2071C and PT2072C and the plugs X27
⇒
Use a multimeter to do a check between each of the cables on the plugs X27 terminals 94 and
95 and ground for a short circuit or ground fault.
⇒
Replace damaged cables, or temporarily repair with insulation tape until spares are available.
⇒
Do a check of the transmitters for a ground fault. If necessary, replace the pressure
transmitter(s).
⇒
If failure ID 17 stays on when the plug X27 is disconnected, replace the related FCM
−
20.
Failure text
ME servo oil pressure meas. fail. diff. high (ID 18)
FCM
−
20 No.
LED
Failure ID
Display
Indication
#01 and #02
AI2
18
18
Cause The pressure transmitters PT2071C and PT2072C have a difference of more than 30 bar
(failure signal is released after 7 seconds).
Procedure
⇒
Compare the two servo oil pressure indications.
⇒
With the engine stopped and no pressure in the servo oil rail, find the pressure transmitter that
gives the different signal.
⇒
If possible, change the engine load through a wider range and find the pressure transmitter
that does not follow linearly to the change in the servo oil pressure.
⇒
Do a check of the cables in E95.01 and E95.02 of the pressure transmitter that gives the
different signal (plug X27, terminals 94/95).
⇒
Repair or replace damaged cables.
⇒
If necessary, replace the pressure transmitter PT2071C or PT2072C.
2014
Failures and Defects of WECS Components
Summary of Contents for W-X82
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Page 337: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 3 21 WCH00345 2014 Air Supply...
Page 340: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 6 21 WCH01167 2014 Servo Oil Supply 9 cylinders...
Page 342: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 8 21 WCH01123 2014 Fuel Supply 9 cylinders...
Page 343: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 9 21 016 805 08 2014 Starting System...
Page 344: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 10 21 016 335 07 2014 Speed Control...
Page 354: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 20 21 018 138 09 2014 Cooling Water...
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