Semi trucks are big trucks with an even bigger responsibility. They play a very important role in the transportation of essential goods across the country. According to Noregon, they handle 71% of the US’s freight by weight. Without semi trucks on the roads, our economy would halt, and shelves in stores and pantries would remain empty. This brings us to the main point of this guide. Given the heavy loads they carry daily, these trucks require regular maintenance and repairs to ensure smooth operation. Thus, both truck drivers and fleet managers must prioritize semi truck repair and have access to reliable repair services.
In this guide, we'll explore common issues that arise with semis and offer tips for preventing these problems. Keep reading to stay prepared for any maintenance needs that may arise!
Preventive maintenance for a semi-truck
Preventive maintenance means keeping the truck in good shape by regularly checking and fixing parts. It's like giving the truck a check-up to catch any problems early. The maintenance is done on a set schedule, called service A, B, C, etc. As you move from A to B and beyond, the maintenance gets more complicated and takes more time.
During a semi truck repair, a safety check is done to ensure everything works properly. This includes checking truck tires, brakes, lights, and fluids. It also involves adding lubrication and adjusting parts that wear out quickly. Usually, a semi-truck needs this service every 5,000 to 10,000 miles to stay in top condition.
Quick tips for semi truck repair
Semi-trucks face rigorous conditions on the road, requiring regular upkeep to prevent breakdowns and ensure smooth operations. By following a set of preventive maintenance practices, truck drivers and fleet managers can minimize the risk of costly repairs and downtime, ultimately contributing to the reliability and longevity of their semi-trucks. Let’s look at some quick strategies to focus on caring for your semi trucks.
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Check the engine regularly to make sure it's running smoothly. This includes changing oil filters and watching out for excessive smoke.
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Keep the chassis, steering, drivetrain zerks, and slack adjusters well-lubricated with high-quality grease.
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Maintain the correct tire pressure and regularly inspect tires for wear and tear, as well as the depth of the tread.
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Prevent corrosion, especially if you drive in snowy or icy areas where salt and chemicals are used to melt ice.
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Have a professional service provider inspect the brakes for wear and failure. Regularly change brake pads, bushings, pins, and springs as they wear out quickly.
2 types of semi-truck repair jobs
Understanding the various types of repair jobs for semi-trucks is crucial for company drivers and owner-operators. By knowing when to attempt repairs yourself or seek professional assistance, you can effectively address maintenance issues and prevent breakdowns.
1. Professional repair vs. DIY
Deciding whether to handle repairs yourself or hire a professional depends on factors like ownership status and the nature of the repair needed. Regular semi truck repair and preventive maintenance can help avoid common issues, but knowing when to call in an expert is essential. If you're a company driver, your employer may have specific policies regarding DIY repairs, while owner-operators have the flexibility to choose. However, attempting complex repairs without adequate expertise can lead to further damage and safety risks.
2. Simple vs. not-so-simple repairs
Carrying basic tools while driving is advisable for addressing simple repair tasks that may arise unexpectedly. These tasks, such as replacing a headlamp or installing a tail light, are often manageable for new truckers. However, larger repairs and bodywork typically require professional assistance. For example, repairing structural damage or addressing engine malfunctions necessitates specialized knowledge and equipment beyond the capabilities of most drivers.
Federal Motor Carrier Safety Administration instructs that truck drivers fill out inspection reports every day and fix any problems they find. This includes things like:
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Dealing with any damage or issues: Sometimes, drivers accidentally damage their tires when they're driving in tight spots, like small docks.
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Getting help after a breakdown: If a truck breaks down, drivers usually have to call for a tow truck to take it to a repair shop. Where they go depends on how bad the problem is and what's available nearby.
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Fixing flat tires: If a truck doesn't have any spare tires, it's important to get a professional to replace a flat tire, especially because trucks are heavy and need special tires.
In general, fixing big problems with a semi-truck takes a lot of skill and the right tools and parts.
6 semi truck repair and maintenance tips
Maintaining semi trucks is crucial for safe and efficient transportation. Here are some essential tips for common repairs and upkeep.
1. Cooling system repair
The cooling system plays a vital role in regulating the engine's temperature and preventing overheating. Repairs may be required if there are leaks, blockages, or other malfunctions within the cooling system.
Tip: Regularly monitoring the coolant level and quality is essential to identify potential issues early on. Following the manufacturer's recommendations, drivers should have the coolant flushed and replaced at specified intervals.
Furthermore, inspecting the radiator and hoses for leaks or damage and replacing them as needed can help prevent overheating and costly repairs.
2. Engine repairs
The engine is the powerhouse of a semi-truck, crucial for its performance. If the engine has problems, it can lead to reduced performance, lower fuel efficiency, and expensive repairs. These problems often involve fixing oil leaks, replacing damaged parts, and addressing fuel injection or ignition issues.
Tip: Changing the oil and oil filter regularly is essential to keep the engine well-lubricated and prevent wear and tear on its components.
Routine maintenance tasks like checking and replacing spark plugs and air filters are crucial for ensuring optimal engine function and longevity. Regular upkeep helps identify issues early, preventing them from becoming more severe and costly.
3. Brake repairs
Brakes play a vital role in the safe operation of semi trucks, especially considering their heavy weight. Brake issues are common and can include problems with brake pads, rotors, and calipers due to regular wear and tear or damage.
Tip: It's important to regularly inspect the brake system to catch any issues early on. Replace brake pads before they wear out completely to prevent damage to other components like rotors. Additionally, ensure that brake fluid is flushed and replaced according to the manufacturer's recommendations to maintain optimal brake function.
4. Electrical repairs
Semi trucks feature intricate electrical systems that become increasingly complex. These systems control various vehicle components, including lights, sensors, and communication systems. Electrical repairs may become necessary if there are issues with wiring, fuses, relays, or other electrical components.
Tip: It's advisable to check the battery and alternator routinely to ensure proper functionality. Avoiding overloading the electrical system with aftermarket components is also crucial, as it can place undue strain on the system.
5. Transmission repairs
The transmission plays a vital role in a vehicle by facilitating gear shifts and transferring power from the engine to the wheels. Repairs may be needed to ensure smooth operation when transmission issues arise, such as difficulty shifting, slipping gears, or grinding noises.
Tip: It's crucial to regularly inspect the transmission fluid level and quality to identify any potential issues early on. Following the manufacturer's recommendations, replacing the fluid and filter at specified intervals helps maintain optimal transmission function.
Avoiding overloading the vehicle or driving aggressively is also advisable, as excessive strain on the transmission can lead to premature wear and potential breakdowns. By practicing preventive maintenance and being mindful of driving habits, you can prolong the life of your transmission and minimize the need for costly repairs.
6. Suspension repairs
The suspension system is crucial for absorbing shocks and vibrations while driving, ensuring a smooth ride and preventing uneven tire wear. Repairs may be needed if issues arise with the suspension, such as a rough ride or tire wear inconsistencies. These repairs can involve replacing components like shocks, struts, or springs.
Tip: Conduct regular inspections of the suspension system and replace any worn or damaged components to maintain optimal performance. Avoid driving on rough terrain whenever possible and avoid overloading the vehicle, as excessive weight can strain the suspension.
Proper semi truck repair is important!
Keep your trucks safe with good semi truck repairs. Besides fuel and equipment, fixing and maintaining semi-trucks can be expensive for trucking businesses. However, if you regularly take care of your trucks, you can avoid spending a lot of money on repairs later. So, it's important to create a plan to check and fix your trucks regularly. This way, you can make sure they keep running smoothly and you won't have to pay for big repairs in the future.
Even though it might take some time and money to do this, it's worth it because it helps your trucks work better and last longer. When you focus on fixing problems early, your trucks will be safer and more reliable, and you won't have unexpected breaks.
By looking after your trucks well, you're not just protecting your investment, but you're also making sure your fleet performs well for a long time.