WinGD X72 - Problems during Engine Start and Stop; Problems during Engine Start

Operation
0810−1/A1
Winterthur Gas & Diesel Ltd.
1/ 4
Problems during Engine Start and Stop
1. Problems during Engine Start
For the names and part code numbers, see 4003−2 Control Diagram.
Problem Possible Cause Procedure
The engine does not turn
during the start sequence
The shut-off valves on the starting air bottles
are closed
Open the shut-off valves
The starting air pressure is too low Fill the air bottles
The oil pressure, water pressure, or air
pressure for the air spring is too low. The
pressure switches have activated a
SHUTDOWN signal
Reset SHUTDOWN
Engine will not start from the
control stand in the control
room
The control stand has no effect Push the related button on
the LDU−20 for mode transfer
or to get control (see 4002−2,
paragraph 3.3)
The remote control system (RCS) and / or
telegraph system has a fault
Do a check of the RCS or
speak to the RCS supplier
The RCS shows a start interlock Do a check of the indication
of starting interlock in RCS
(turning gear, shut-down,
auxiliary blower), release
interlock
No signal between the RCS and the engine
control system (ECS)
Do a check of the plugs, and
CAN open lines, for loose or
broken wires
Engine will not start from the
control stand at the engine
The control stand has no effect Push the related button on
the LDU−20 for mode transfer
or to get control (see 4002−2)
The turning gear is engaged, the 3/2-way
valve 35-31HA prevents the flow of control air
to valve unit E
Disengage the turning gear
The 2/2-way valve 35-4325_E0_5 to the
starting air shut-off valve cannot move, or
does not open fully
Clean the 2/2-way valve
35-4325_E0_5
The solenoid valves CV7013C and CV7014C
in valve unit E become defective
Clean or replace valves. Do a
check of the wiring
The electrical connection(s) are disconnected
from the solenoid valve(s) in valve unit E
Connect the electrical con-
nection(s)
The starting air shut-off valve is in the position
CLOSED
Move the shut-off valve to the
position AUTOMAT
The starting air shut-off valve does not open,
(cannot move), the non-return valve cannot
move and does not fully open
Do an overhaul of the starting
air shut-off valve.
The auxiliary blowers do not operate Start the auxiliary blowers
The air flaps in the scavenge air receiver are
defective (no pressure from the auxiliary
blowers)
Do an overhaul on, or replace
the air flaps
Operation Problems
2014