PERIODIC MAINTENANCE
JH Series Operation Manual
111
Environmental Condition for operation and maintenance
The following environmental operating conditions and maintenance should be observed,
in order to keep engine performance.
• Ambient temperature: -20 °C to +40 °C (-4 °F to +104 °F)
• Relative humidity: 80% or lower
The diesel fuel should be:
• ASTM D975 No. 1-D S15, No. 2-D S15, or equivalent (minimum of cetane No. 45)
The lubricating oil should be:
• API Service Categories CD, CF, CF-4, CI and CI-4.
Be sure to perform inspections as outlined in
PERIODIC MAINTENANCE PROCEDURES
and keep a record of the results.
Pay particular attention to these important points:
• Replacing the engine oil
• Replacing the engine oil filter
• Replacing the fuel filter
• Cleaning the intake silencer (air cleaner)
Note: Inspections are divided into two sections in accordance with who is responsible for
performing the inspection: the user or the maker.
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