What Are the Symptoms of Air in a Diesel Generator Fuel System?
Short Answer: Air in a diesel generator fuel system causes hard starting, stalling after startup, unstable RPM, power loss under load, and white smoke. In our field experience, this usually happens after fuel filter replacement, running out of fuel, or air leaks in fuel lines. If not resolved, it can lead to injector damage or […]
What Happens If Air Gets Into a Diesel Generator Fuel System?
Short Answer: Air in a diesel generator fuel system will cause no start, hard starting, power loss, or sudden shutdown because it prevents the fuel system from building injection pressure. This condition is commonly known as an air lock in a diesel engine, and in our field experience, it almost always happens after running out […]
Why Won’t a Diesel Generator Start After Fuel Filter Change?
Short Answer A diesel generator usually won’t start after a fuel filter change because air has entered the fuel system. The most common causes are: Air trapped in the fuel lines (most common) Fuel system not properly primed Incorrect fuel filter installation Air leaks at fuel connections In our field experience, this happens frequently after […]
Why Won’t a Diesel Generator Start After Running Out of Fuel?
Short Answer A diesel generator will not start after running out of fuel because air has entered the fuel system and is blocking proper fuel injection pressure. In most cases, the generator is not damaged — it simply cannot deliver fuel to the injectors until the air is completely removed. In real situations, this usually […]
Load Bank Sizing for Diesel Generators
A properly sized load bank should match the actual test objective, the generator’s rated power, site voltage, power factor, and the step-loading plan. In most diesel generator projects, the best load bank size is not simply “same kW as the generator” or “bigger is safer.” It should be sized to let the generator reach the […]
How to Choose the Right Load Bank for Your Generator
Choosing the right load bank is not just about matching kW ratings. In real projects, incorrect selection often results in incomplete testing, misleading results, and failures that only appear under real operating conditions. From our experience across data centers, industrial plants, and standby systems, most selection errors happen because: The load bank is chosen based […]
What Happens If You Don’t Perform Load Bank Testing?
If load bank testing is not performed, a diesel generator may appear to run normally but fail when real load is applied. In real-world projects, this is a common issue. A generator may start, run without alarms, and seem stable during routine checks. However, once actual load is connected, problems such as voltage instability, frequency […]
Diesel Generator Load Bank Testing Procedure (Step-by-Step Guide)
Quick Answer A diesel generator load bank testing procedure includes: Pre-test inspection Connecting the load bank Starting and stabilizing the generator Applying load in stages (25% → 50% → 75% → 100%) Monitoring key parameters Recording performance data Gradual unloading and shutdown In real projects, this procedure is used to verify whether the generator can […]
How Often Should a Diesel Generator Be Load Bank Tested?
If you ask different engineers this question, you will get different answers. In most manuals, the recommendation is simple: diesel generators should be load bank tested once per year. But in real projects, that answer is often not enough. The correct testing frequency depends on one key factor: how the generator actually operates – especially […]