CAPS in the Cold

It is well known that fleets perform more jumpstarts during the cold winter months. This happens because cold motors require more energy to start and the weather can cause batteries to produce less energy. To combat these cold weather conditions, fleets need a jumpstarter that is powerful, portable, quick, and safe. Purkeys’ Capacitor Actuated Portable…

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Reduce No-Start Situations this Winter

It is harder to start vehicles in the cold, because the energy requirements to crank an engine increase, while the battery’s ability to produce energy decreases. As temperatures drop, vehicle energy requirements go up, mainly because of engine oil viscosity. Viscosity refers to the thickness or consistency of a fluid. Lower temperatures make the oil…

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Testing Diodes with Multimeters

The multimeter combines multiple electrical diagnosis functions into one portable unit. Technicians can use this tool for a variety of applications, including measuring voltage drop, continuity checks, diode checks, capacity checks, and more. In the video above, Purkeys National Truck & Fleet Representative, Larry Rambeaux, demonstrates how to conduct a diode check using a multimeter.…

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Using an In-line Ammeter to Find Parasitic Loads

Purkeys Electrical Tool Kit comes with a variety of useful tools to help technicians test and diagnose heavy-duty vehicle electrical systems. One of the most commonly used tools in the kit is the multimeter, a device that combines multiple electrical diagnosis functions into one portable unit. However, many technicians do not recognize the utility of…

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The Handy Clip-On Ammeter

Purkeys Electrical Tool Kit comes with a variety of useful tools to help technicians test and diagnose heavy-duty vehicle electrical systems. This week, we will be spotlighting one of the tools in this kit—the clip-on ammeter. Unlike the ammeter function of a standard multimeter, which we discussed previously here, the clip-on ammeter measures current through…

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Testing Resistance on 5-Pin Relays

The multimeter combines multiple electrical diagnosis functions into one portable unit. One of the more frequently used functions of the multimeter is the ohmmeter. The ohmmeter measures resistance in Ohms (Ω). In the above video, Purkeys National Truck & Fleet Representative, Larry Rambeaux, demonstrates how to test resistance on a 5-pin relay using an ohmmeter.…

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