Check After Starting; Check Monitor Operation; Check Engine Noise And Exhaust Gas Color - Hitachi ZW 550-6 Operator's Manual

Check After Starting

IMPORTANT: If any abnormality is found in the
monitor functions, immediately stop the engine and
investigate the cause of the trouble.

Check Monitor Operation

1. Check that service indicator (1) is OFF.
2. Check that discharge warning indicator (2) is OFF.
In case the discharge warning indicator stays ON,
immediately stop the engine. Inspect the alternator and
battery system for problems.
3. Check that low engine oil pressure indicator (3) is OFF.
In case the low engine oil pressure indicator stays ON,
immediately stop the engine. Inspect the engine oil
pressure system and the oil level.
4. Check that engine coolant temperature gauge (4) is
within the blue range.
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NOTE: To check indicator bulbs and the buzzer function,
when the key switch is turned ON, monitor indicators come
ON and continue to stay ON for approx. 2 seconds.

Check Engine Noise and Exhaust Gas Color

Check that the engine noise and exhaust gas color is
normal.
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NOTE: Check the exhaust gas color as follows. (After warm-
up operation, run the engine with no loads.)
Clear or light blue :
Black :
White :
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NOTE: White smoke may occur for several minutes after the
engine starts, this is not a malfunction.
OPERATING THE ENGINE
Normal (Perfect combustion)
Abnormal (Imperfect
combustion, abnormal exhaust
filter, abnormal fuel system)
Abnormal (Oil is leaking into the
combustion chamber, abnormal
exhaust filter, abnormal fuel
system)
3 1
4
3-9
2
95Z7B-3-9-1