Operation and Maintenance Manual for PowerKit 6M16 Series
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4.5Maintenance of the diesel engine for long-term storage
4.5.1 Oil sealing method
Add lubrication system corrosion inhibitor to the lubricating oil. Start the engine and then stop it
after running for (5~10) minutes. Remove the original diesel fuel inlet pipe and insert it into the
barrel containing sealing oil for fuel system. Remove the air in the fuel system and start the diesel
engine, run the engine at 2/3 of rated speed and then stop it after 15 minutes. Drive the engine with
starter motor and spray oil sealing oil for intake/exhaust manifold to the inlet port of turbocharger
with air spray gun. Stop spraying after the oil mist discharging out continuously from the exhaust
manifold for 15s. Remove the pipe for oil sealing and close all exposed pipe ports of diesel engine
with plastic covers. Coat the unpainted surfaces (except monitor and control apparatus, rubber hoses
and warning signs) of diesel engine with rust resisting oil. Wrap up the diesel engine with
plastic-film bag and store the engine in a dry and ventilating warehouse.
4.5.2 Oil used for oil sealing of diesel engine
Table 4-9 Oil used for oil sealing of diesel engine
No.
Name
Specification (code)
1
Oil sealing oil for fuel
system
Spindle oil
2
Oil sealing oil for
intake/exhaust system
Spindle oil
5.Common faults and troubleshooting
5.1Diagnosis and adjustment methods
Generally, the common diagnostic methods for malfunctions of diesel engine are as follows:
(1) Observation method: Judge the malfunction situation by observing malfunction features such as
exhaust smoke color of diesel engine (figure 5-1).
(2) Listening diagnosis method: Judge the location, feature and extent of malfunction by listening
the abnormal noise of diesel engine (figure 5-2).
