11 TROUBLESHOOTING
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
179
Pub. No. 291Y1-40720 Revision: 5
â– Remedies to Faults
Except for refilling fuel, engine oil, and coolant,
remedies to faults will require special equipment or
involves dangerous work.
Contact your MHIET dealer "
CONTACT LIST" (→
Page 10).
â– Before Taking Actions
Before taking any remedies, inspect possible
causes of the fault and try to find out if the same
fault has occurred in the past. In addition, closely
investigate the parts that may be causing the
problem.
When disassembly of any part of the engine is
needed, pay close attention to the disassembly
sequence so that you can effectively assemble
later.
â– Cautions Against Contamination
Wear of parts are very often caused by aged
deterioration or impurities such as dust.
When disassembling any part of the engine, take
measures to prevent dust and foreign materials
from entering.
â– Parts - Handling
Handle parts carefully.
When replacing, use MHIET genuine parts.
â– Safety Working Practices
Use correct tools, and perform work with the utmost
care.
If you misjudge the weight, you may damage the
part by dropping it, or get injured.
How to Troubleshoot
In general, problems can be divided into three
types:
(a) Machine-related problems
(b) Electricity-related problems
(c) Operation-related problems
If any problem occurs, you need to determine
precisely which of the three types applies.
Perform the troubleshooting by using the following
steps:
1 Check the following items.
• Under what conditions was the engine
running?
• What operation was performed?
• Any external factors?
2 Refer to the next "Troubleshooting"
and determine the cause.
3 Take the measures according to the
Remedies.
• If the problem is not solved after the
measures have been taken, or if there
is any uncertainty about the cause or
remedies of the problem, contact
your MHIET dealer "
CONTACT LIST"
(→ Page 10).
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