Tab 10-52 Pressure of the air spring air supply is too low
Indication
Possible cause
Procedure
PT4341A
There is an incorrect setting of the
control air supply
•
Set the control air supply to the correct val-
ue.
There is an incorrect setting of the
safety valve
•
Set the safety valve to the correct value.
The control air supply is defective
•
Repair or replace the defective item of the
control air supply.
Tab 10-53 Oil leakage flow in the collector for leakage oil from the air spring is too high
Indication
Possible cause
Procedure
LS4351-52A
The collector for leakage oil from
the air spring is clogged
•
Clean the collector for leakage oil from the
air spring.
The float control is defective
•
Repair the float control.
Tab 10-54 Control air supply pressure is too low (usual supply)
Indication
Possible cause
Procedure
PT4401A
The control air supply system is de-
fective
•
Find the cause and repair the fault.
There is an incorrect setting of the
control air supply
•
Set the control air supply to the correct val-
ue.
Tab 10-55 Control air supply pressure is too low (stand-by supply)
Indication
Possible cause
Procedure
PT4411A
The starting air supply system is
defective
•
Find the cause and repair the fault.
There is an incorrect setting of the
control air supply
•
Set the control air supply to the correct val-
ue.
Tab 10-56 Control air supply pressure is too low (safety supply)
Indication
Possible cause
Procedure
PT4421A
This is a result of the malfunction in
Table 10-54 - Control air supply
pressure is too low (usual supply)
supply pressure is too low (stand-
by supply)
•
As a temporary procedure, stop the engine.
•
Do the repair shown there.
The drain valve of the air tank is
open
•
Close the drain valve of the air tank.
X72-B
AA00-0000-00AAA-410C-A
Operation Manual
Malfunctions of systems and components
Winterthur Gas & Diesel Ltd.
- 404 -
Issue 003 2021-12
