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Denso Alternators for Kubota Tractors

Le 3 novembre 2015, 10:42 dans Humeurs 0

Successful Farming Engine Man Ray Bohacz has engine grease and field dirt under his fingernails from a life spent repairing vehicles and running a farm. When he's not busy in the shop, he's working on maintenance articles and videos for Successful Farming magazine and answering questions from readers. The following is a letter Bohacz received from Rob Williams:
I have a 1660 Case combine. The alternator will not hold up on this machine. We been through four (alternators) in the last year! They start out fine, and then their output gradually decreases to nothing. The last alternator we installed lasted just 19 hours. A local mechanic installed a resistor in the line to the China Starter Parts. That didn't help. We put in a new battery in 19 hours ago, as well. I have looked for excessive loads, bare wires, etc. I am lost. Can you help me?

Response from the Engine Man:
If I were working on your combine, I would take the failed alternator apart to see what caused the component to go bad. Doing so will greatly help determine where you need to look. I do not know what brand alternator you have or if it has an external or internal voltage regulator. Another key would be to determine how many volts a new alternator put out while charging and before it ramps down and fails. For example, if the combine has a bad ground or the wire feeding the field circuit has excessive resistance, it will overcharge falsely thinking the battery voltage is low. If the condition is excessive, it will enter a state called "full field," which in simple terms means that the voltage to the field circuit will not be regulated (it will act as if the voltage regulator is shorted) and full output from the alternator will be seen. Since the engine rpm will be high while harvesting, a full fielded alternator will burn itself out and can even get hot enough for it to start to melt the solder holding it together inside. When this occurs, the voltage output would ramp down slowly over time (lower and lower output) as opposed to burning out like a light bulb does.

Also keep in mind that on many vehicles the dashboard circuit . . . if equipped with a CHARGE or BATT idiot light  . . . may be wired up to the field circuit. On many Delco applications if the bulb is burned out, the alternator will not charge (this is not your problem). But if there is a short in the printed circuit, it can full field the charging circuit.

Thus, I offer the following condensed advice. Take the now-failed Thermo king Alternators to an auto electric shop and let them bench test it and determine what failed. Then we will know where to look for the problem. If possible, locate a shop manual for the charging circuit for your combine, and then follow the troubleshooting directions for “No Charge,” which is the ultimate result.

This is the best I can do right now with the information I have. We need to act like a forensic doctor and do an autopsy on Nikko Alternators to give us a clue.

Borg & Beck starters and alternators programme hits 1,700 part numbers

Le 3 novembre 2015, 10:10 dans Humeurs 0

Borg & Beck’s range of China Starter Parts, alternators and freewheeling pulleys has grown rapidly since its UK launch and now stands at more than 1,700 part numbers, making it one of the largest surcharge-free rotating electrics programme in the country. Available on an outright purchase basis, the range has been designed for convenience; without the surcharge arrangement applied to the price there is no requirement to return the old ‘core’ unit, meaning workshops can benefit from any scrap value themselves.

All the units in the range have been performance tested and supplied with a certificate of conformity with the unit in its box, along with any fitting tips and instructions where appropriate for those references that are known to be less straightforward to install. As a result, all Borg & Beck rotating machines come with a two-year warranty. The range also reflects the latest technology in current vehicle production, including auto bearings factories from China developed for micro-hybrid vehicles fitted with a stop-start function and those that incorporate water cooling.

Faced with the twin challenges of producing a high charge output and their installation in increasingly confined spaces, Vehicle manufacturers have introduced water-cooled alternators to provide the solution. In these units, the requirement for a conventional internal cooling fan has been nullified by connecting them directly to the engine’s cooling system, which is a far more efficient method of heat control. This development is also reflected in the Borg & Beck range.

In order to compensate for the inevitable inertia generated within the alternator through the constant acceleration/de-acceleration of the engine, manufacturers have developed the freewheeling clutch pulley. This pulley helps to prevent damage to the drive belt and the associated components within the front-end auxiliary drive system, by reducing the inertia that is caused from the tension/vibration in the alternator drive belt. The Borg & Beck programme therefore also includes an extensive range of Freewheeling Pulleys.

The entire programme is supported by a comprehensive hot sale Alternator & Starter parts, which provides the necessary application details and other useful information. These additional details address, among other things, the dos and don’ts of freewheeling pulley replacement, 10 common faults/misdiagnosis to watch out for, the returns criteria and online warranty portal procedure, as well as special tooling and details of the Borg & Beck Webcat electronic parts catalogue.

DENSO now ships high-amp alternators

Le 3 novembre 2015, 10:00 dans Humeurs 0

DENSO Products and Services Americas is now shipping PowerEdge, its new series of high-amp Thermo king Alternators developed for medium- and heavy-duty commercial trucks.

“PowerEdge is a game-changer for the commercial trucking industry,” said Frank Jenkins, senior manager of DPAM’s Heavy Duty Marketing Group. “It meets the market’s rigorous duty-cycle demands while saving fuel, increasing battery life and lowering operational costs.”

Coinciding with the launch, DENSO said it has upgraded its Commercial & Heavy Duty website. The site now offers access for smartphone and tablet users, as well as new navigational features. “We’ve made it easier than ever for customers to access all our products and services,” Jenkins said.

“PowerEdge Nikko Alternators are uniquely designed to meet the higher electrical requirements and increased battery loads of the most powerful trucks on the road today,” the company said. “The product line’s cutting-edge materials and engineering features include heavy-duty bearings, advanced long-life brush composition, remote sense technology and DENSO’s patented segment conductor technology that incorporates its innovative square copper wire stator design.”

“Measuring 7.7 inches long and weighing up to 10 lbs. less than competitors, PowerEdge is also the smallest and lightest Iskra Alternators Sales in its class,” according to the company.

“PowerEdge is a top-performing alternator that provides higher amps at idle and cruise speeds, faster charging and rapid battery recovery. It is also remarkably easy to handle and install,” Jenkins said. “With its unmatched efficiency and long life, this may be the last alternator you put in your truck.”

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