How many amps does a school bus alternator put out?
How many amps does a school bus alternator put out?
160 amp alternator performance curve The typical School Bus today would require a 185 amp alternator to ensure that basic amperage requirements are exceeded and healthy batteries are maintained and would not be adequate if air conditioning were installed in all cases.
How many amps does a school bus use?
A bus equipped with standard D.O.T. requirements will typically have an electrical load of 80-105 amps, depending on the accessories that each individual operator may choose.
How many batteries does a school bus have?
The bus is equipped with two batteries.
Where is the water pump located on a school bus?
The air compressor should be on the left side of the engine as well, except more toward the top, and it is usually gear driven on the newer model buses. The water pump is in the center of the engine and is driven by the serpentine belt.
What should the voltage be on an alternator?
Alternator Testing: What Is The Correct Voltage? For some alternators, it’s normal to see as low as 13 volts. For some, a constant 13.6 volts is an indication of a problem.
What happens when an alternator overcharges the battery?
The alternator will overcharge the remaining cells and boil the electrolyte in the other cells. At the other extreme, a battery that is sulfated due to being undercharged or not seeing constant use will maintain normal charging voltages.
When to use battery light to test alternator?
The other critical tool to effectively diagnose an alternator is a scan tool. On older vehicles, the battery light would turn on the alternator light when the alternator output or battery voltage dropped below a preset value. The battery light on modern vehicles, however, is controlled by data and trouble codes.
Can a load test alternator be overheated?
Although load-testing an alternator provides a quick way to test for drive belt slippage, keep in mind that an alternator can easily be overheated when testing for maximum output during low-speed operation for an extended period. Most alternators wi
When does an alternator need to be charged?
Alternator output is on demand when there are loads detected or the battery needs to be charged. Depending on ambient temperature, charging voltage varies.
Where is the voltage setting on the alternator?
It’s mostly located in the engine bay, but also in the trunk or under the windshield. Anyway, it’s mostly in a visible place so it should be easy to find. The car battery, installation, and devices all work on 12 volts. There will be no setting for 12 V exactly so set to the next bigger number and that will be 20 volts.
Although load-testing an alternator provides a quick way to test for drive belt slippage, keep in mind that an alternator can easily be overheated when testing for maximum output during low-speed operation for an extended period. Most alternators wi
Why does my car have a bad alternator?
Many so-called alternator problems turn out to be nothing more than a bad connection at the alternator or a bad wiring harness. If you see a modern vehicle that measures the life or temperature of the battery, it is bad practice to use the positive and negative battery terminals to power aftermarket accessories.
