Pro Tips, News & Events

Bobcat code M0309 shows up when voltage drops too far during startup. The machine may crank slowly, need a jump, or fail to start. This is not a hydraulic fault. The real causes are almost always electrical: a weak battery, corroded cables, a bad ground, low alternator output, or excessive starter draw. Start with simple checks. Inspect terminals and grounds. Measure battery voltage at rest and during cranking—below 9.6V points to trouble. Confirm charging voltage (13.8V–14.4V). Load-test the battery if the code returns. Check starter draw if everything else passes. Fix the root cause first. For confirmed repairs, FridayParts offers quality aftermarket parts at affordable prices.

A hot cabin is every excavator operator’s nightmare during scorching summers. When the excavator AC fan stops spinning, the cab heats up fast and productivity drops. In this guide, you’ll learn the causes of the AC fan not spinning and how to troubleshoot it yourself. Let’s get started!

Experiencing transmission slipping? This problem can feel like the engine is racing but your machine isn’t moving. Our guide covers the common signs, from rough shifting to burning smells, and explains the causes, like low fluid or worn clutches.

Engine sludge is a thick gunk from broken-down oil that can destroy your motor. It leads to overheating, clogged oil lines, and rapid component wear. We cover the top causes of engine sludge and how to clean and prevent it.

A Fendt chassis number lookup is the most reliable way to identify your tractor’s exact model, version, and production stage. This guide explains where to find the chassis number—typically on the right-hand frame rail or identification plate—and how to decode its three-part structure. It covers major series including Farmer 200, 400 Vario, 700 Vario, 800 Vario, and 900 Vario across different generations and Com levels. Special attention is given to brake configuration codes (/22 vs. /24) and critical serial number breakpoints. Avoid costly parts mistakes by trusting the full chassis number over the model badge alone.

Is your engine’s radiator fan not turning on when it’s supposed to cool your engine? Don’t hurry to shop for a replacement radiator fan yet. In this guide, you’ll learn the signs, causes and how to test a radiator fan.

Every hydraulic system generates heat during operation and this is even more severe in the scorching summer. If left uncontrolled, that heat silently ruins seals, degrades fluids and shortens your machine’s life. A hydraulic oil cooler is the frontline defense. Understanding how it works helps you protect your hydraulic system and save you arms and legs. Let’s explore now!

If your truck AC isn’t cooling, start by checking vent airflow versus air temperature. Strong airflow but warm air usually points to a cooling-system fault—often a dirty condenser, low refrigerant, or weak compressor output. If cooling drops at idle but works on the highway, suspect restricted condenser airflow or poor fan performance. Low refrigerant from slow leaks is also very common, while compressor failure is frequently misdiagnosed. Before replacing major parts, inspect the condenser face for debris, compare idle vs highway cooling, and check for oil residue at fittings. Matching the repair to the symptom pattern saves time and money.

Seeing SPN 5246 FMI 16 means your machine is in derate mode due to an unfixed emissions fault. This guide explains the real causes, from bad DEF fluid to wiring issues, and how to diagnose and fix the problem to restore full power.

If your excavator’s AC is blowing weak, the issue is almost always airflow-related rather than a cooling failure. Common causes include a clogged cabin air filter (the top culprit on dusty job sites), a dirty or iced-up evaporator core, a worn blower motor, a damaged blower wheel, or blocked air ducts. Unlike poor cooling—where air feels normal but isn’t cold—weak airflow means very little air comes out even at high fan speeds. Start by checking the filter and evaporator. If airflow drops after running the AC for 20-40 minutes, suspect ice buildup. Most weak airflow problems can be resolved by replacing the filter, cleaning the evaporator, or repairing the blower assembly—without complex refrigerant work.

Many owners ask, “can you mix coolant colors?” The answer is a firm no. This guide explains why color is a misleading indicator and the real difference is the chemical formula (IAT, OAT, HOAT). Mixing them causes sludge and costly damage.

Do you really understand your planetary gears in your heavy equipment? When your excavator loses pulling power, your bulldozer drifts to one side and your tractor struggles to deliver power to the rear wheels, the culprit is often your planetary gear system. Understanding how they work, what they do, and how to spot trouble early can save you from unexpected downtime and costly repairs.