Check After Starting; Mptc-01-019 - Hitachi ZW 120-6 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 the monitor operation:
1. Check that discharge warning indicator (1) is OFF.
In case the discharge warning indicator stays ON,
immediately stop the engine. Inspect the alternator and
battery system for any abnormality.
2. Check that engine oil low pressure indicator (2) is OFF.
In case the engine oil low pressure indicator stays ON,
immediately stop the engine. Inspect the engine oil
pressure system and the oil level.
3. Check that engine coolant temperature gauge (3) is
within the range (4).
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NOTE: When the key switch is turned ON, the indicators
and warning lights light up and the buzzer sounds for about
2 seconds, as a check for whether any lamp(s) or buzzer are
burnt out.
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 : Normal (Perfect combustion)
Black : Abnormal (Imperfect combustion,
White : Abnormal (Oil is leaking into the
 White smoke may occur for several minutes after the
engine starts, this is not a malfunction.
OPERATING ENGINE
abnormal fuel system)
combustion chamber, abnormal
fuel system)
2 3
3-8
4 1

MPTC-01-019