Troubleshooting; Preparation Before Troubleshooting - Takeuchi TB 175 Handbuch

3. Troubleshooting

3.1 Preparation before troubleshooting

If the signs of a trouble appear, it is important to lecture on the countermeasure and treatment before
becoming a big accident not to shorten the engine life.
When the signs of a trouble appear in the engine or a trouble occurs, grasp the trouble conditions fully by the
next point and find out the cause of sincerity according to the troubleshooting. Then repair the trouble, and
prevent the recurrence of the trouble.
1)What's the occurrence phenomenon or the trouble situation? ⋅⋅⋅⋅⋅ (e.g. Poor exhaust color)
2)Investigation of the past records of the engine
Check a client control ledger, and examine the history of the engine.
• lInvestigate the engine model name and the engine number. (Mentioned in the engine label.)
Examine the machine unit name and its number in the same way.
• lWhen was the engine maintained last time?
• lHow much period and/or time has it been used after it was maintained last time?
• lWhat kind of problem was there on the engine last time, and what kind of maintenance was dane?
3)Hear the occurrence phenomenon from the operator of the engine in detail.
5W1H of the occurrence phenomenon : the investigation of when (when), where (where), who (who), what
• lWhen did the trouble happen at what kind of time?
• lWas there anything changed before the trouble?
• lDid the trouble occur suddenly, or was there what or a sign?
• lWas there any related phenomenon.
⋅⋅⋅⋅⋅. (e.g. Poor exhaust color and starting failure at the same time)
4)After presuming a probable cause based on the above investigation, investigate a cause systematically by
the next troubleshooting guide, and find out the cause of sincerity.
(what), why (why) and how (how)
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3. Troubleshooting