Details: a Caterpillar 349 excavator started fire in the morning. The optical association opened and closed the starter. It took many times to start the starter before it reacted. After the excavator was started normally, everything worked normally
The excavator starter doesn't respond. You can hit the generator once. What's the reason? It may be that the starter carbon brush is estimated to be worn to the limit, and it has poor contact with the commutator, which can be barely connected for use after knocking This can only be dealt with temporarily. It is recommended to maintain the starter and replace the whole set of carbon brushes Start relay or circuit problems.
Cause analysis of the failure of the starter of Caterpillar 349 excavator:
It may be that the starter slips. It is recommended to maintain the starter The starter didn't respond in the morning. It may be cold. There is a problem with the suction switch on the starter
Maybe the battery is a little out of power If there is no problem with the starter, it may be caused by poor contact of the negative interface of the battery You can take it down and wash the lead head with hot water.
You can scrape the terminal with a knife and retighten it No, scrape the terminal of the motor, too. The chemical reaction of the battery will be slower when the weather is cold, so the discharge is slow and the power is less The starting motor needs maintenance, that is, changing the copper sleeve and replacing the carbon brush
Poor circuit connection or motor relay or switch problem
