Before using your DMM plug the two probes into their appropriate places on the meter. The black probe will plug into the common port labeled “COM.” The red probe will plug into the “VΩµmA” port for most testing.
Think of voltage as electrical pressure; amperage as the volume of electricity flowing; and resistance as electrical friction that resists current. Direct Current or DC is electricity flowing from a battery. Alternating Current is electricity flowing from an alternating power source such as a stator.
We receive a lot of phone calls and emails from customers seeking help with their tractor issues. Some of the most common issues are related to the tractor’s wiring. It can be intimidating to look at a mess of different colored wires going in every direction, and try to make sense of it all. In this article, I will break down wiring theory and practices to its most simple and easy to understand form.
In 2015 I built a Front end Loader and a backhoe for a 1974 International Harvester Cub Cadet 149. I built the reservoir into one of the loader towers, and ran an 8 GPM gear pump off of the engine’s front PTO Shaft. This pump was connected to a 2 spool directional control valve with a power beyond port. This power beyond port supplied oil to a 6 spool control valve that controlled the backhoe. My hydraulic system is set to have a maximum pressure of 1,000 psi.