917387/BP0310 63
Checking the Water Separator
The separator is located between the fuel tank and main fuel filter and is used to
remove finely dispersed water in diesel fuel. Check on a daily basis and drain if
necessary. Water can be drained from the separator by opening the valve located
at the bottom of the separator bowl.
Engine Diagnostic Chart
When detecting failures, the engine electronic control unit (ECU) flashes the
failure lamp to alert the operator to the occurrence of the failure conditions. The
failure lamp will light for two seconds when the engine electronic control unit is
powered on. This allows checking if the engine electronic control unit is supplied
with power normally. (The failure lamp is an essential way for checking or diag-
nosing the engine electronic control unit.)
Flashing patterns of the failure lamp are showing in Figure 35. When accelerator
sensor failure (flashing 5 short (0.5 seconds) times) and Exhaust Gas Recircula-
tion valve failure (flashing 1-3 long (1.5 seconds) and 3 short times) occurs, the
failure lamp flashes as shown in Figure 35. When two or more failures have
occurred simultaneously, the failure lamp indicates all the failures in order of
increasing number of flashes cyclically.
Figure 35 Flashing Patterns of the Failure Lamp
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