Truck Fleet Maintenance Management: A Guide to Developing a Strategy

Mainline Team • May 17, 2022

Maintaining a fleet of trucks can be a daunting task. There are so many things to consider – from developing a strategy to choosing the right fleet maintenance practices, to planning for specialized and upfitted trucks. But don't worry – we're here to help! In this guide, we will walk you through everything you need to know about truck fleet maintenance management.

Maintenance Management for Light-Duty, Medium and Heavy-Duty, and Specialized or Upfitted Trucks

Depending on your fleet, you may have specific needs for how to handle maintenance. Different sizes of fleets and different trucks have their own problems and specific strategies to deal with them. Here is a breakdown of the differences and specific issues to deal with depending on the kind of trucks in your fleet:

Light-Duty Trucks


For those with a fleet of light-duty trucks, the biggest concern is usually preventative maintenance. These trucks have less wear and tear and so regular check-ups can help avoid any major problems down the line.


Some of the common problems for light-duty trucks include:


-Tire pressure: This is one of the most important things to check on any truck, but it is especially important for light-duty trucks. Proper tire pressure can help improve fuel economy and extend the life of your tires.


-Brakes: Like with any vehicle, brakes are crucial to safety. Make sure to check them often and replace them when necessary.


-Oil changes: Oil changes are important for all trucks, but light-duty trucks may need them more often. Check your owner's manual to see how often you should change the oil.


-Battery life: Batteries can die quickly in cold weather, so it is important to check them often and keep them replaced.


To avoid these problems, it is important to regularly check your fleet and make sure that they are up to date on their maintenance. You can do this by implementing a schedule of check-ups and keeping track of when each truck was last serviced.


Medium and Heavy-Duty Trucks


If you have medium or heavy-duty trucks in your fleet, then you know that these require more frequent and specialized maintenance than light-duty trucks.


Common problems for medium and heavy-duty trucks include:


-Engine issues: These trucks have larger engines that work harder, so they are more susceptible to wear and tear. It is important to check the engine oil level and quality, as well as the coolant level.


- Transmission problems: These trucks also have larger and heavier transmissions, which can cause issues over time. It is important to check the transmission fluid level and quality frequently.


- Brake issues: As with any vehicle, brakes are crucial to safety. However, because these trucks are so heavy, they put more strain on the brakes. This can cause them to wear out more quickly. Make sure to check the brakes and replace them when necessary.


- Tire issues: These trucks have larger and heavier tires, which can cause problems over time. It is important to check the tire pressure and tread depth. You may also want to consider rotating the tires when you can.

There are several reasons why maintaining your fleet on a regular basis is critical, but the most obvious is that fleet downtime can cut into your bottom line very quickly. You should also keep track of when each vehicle last received maintenance and what was done to it.


Specialized and Upfitted Trucks


If you have specialized or upfitted trucks in your fleet, then you know that they require even more frequent and specialized maintenance than other trucks.


Common problems for these trucks include:


- Engine issues: These trucks have larger engines that work harder, so they are more susceptible to wear and tear. It is important to check the engine oil level and quality, as well as the coolant level.


- Transmission problems: These trucks also have larger and heavier transmissions, which can cause issues over time. It is important to check the transmission fluid level and quality regularly.


- Brake issues: As with any vehicle, brakes are crucial to safety. However, because these trucks are so heavy, they put way more strain on the brakes. This can cause them to wear out more quickly. Make sure to check the brakes often and replace them when necessary.


- Tire issues: Replacement of these trucks' tires is more expensive, compared to regular-sized and lighter vehicles. Because they have larger and heavier wheels, they might deteriorate over time. It's crucial to check the tire pressure and tread depth regularly. You might want to replace the tires on these trucks whether they need it immediately or not to prevent problems both to the wheels and the rest of the truck.


Create the Best Truck Fleet Maintenance Strategy for Your Fleet


To avoid these problems, it is important to have a maintenance schedule for your fleet. You should also keep track of when each truck was last serviced and what was done. This will help you catch any potential problems before they become major issues.


You should also invest in a good fleet maintenance software system if possible. This will help you keep track of your fleet, schedule maintenance, and manage repairs.


Finally, have a professional, expert truck maintenance company ready to handle all of your maintenance needs. The best maintenance companies will provide the following services and more:


- Truck fleet maintenance

- Tire repair and replacement

- Brake repair and replacement

- Engine repair and replacement

- Transmission repair and replacement


When you have a good fleet maintenance strategy in place, you will be able to keep your trucks on the road and running smoothly for years to come.

Have all Your Fleet Maintenance Needs Taken Care of in One Place: Mainline RV and Truck Service


At Mainline, we provide all the fleet maintenance services you need to keep your trucks running smoothly. We have a team of highly trained and experienced technicians who are ready to handle any repair or replacement you need. Let us Create and Organize a service schedule for each of your vehicles.


Contact us today to learn more about our services and how we can help you maintain your fleet to keep it running at full capacity and in tip-top shape, all year round.

Contact Us

April 27, 2026
Stop the "white-knuckle" driving! Learn what causes motorhome porpoising and how professional RV suspension upgrades can restore safety and comfort to your ride.
April 21, 2026
Don't let your RV generator die from disuse! Learn why "exercising" your Onan generator prevents costly repairs and keeps your motorhome ready for the road.
April 13, 2026
Safe stopping is as vital as engine power when towing a heavy load. Many truck owners overlook trailer brakes until an issue arises. At Mainline RV & Truck Service , we handle various towing setups, primarily electric and surge brakes. Both systems stop a trailer safely, but they operate differently and require separate trailer maintenance approaches. Understanding these differences is essential for road safety. We offer an expert comparison, including specific maintenance needs. Understanding the Fundamental Differences Before discussing what keeps them running smoothly, we should look at how the two systems operate. Electric brakes get their power from an electrical signal sent from the tow vehicle. Pressing the truck’s brake pedal tells the brake controller to send electricity to powerful electromagnets inside the trailer’s drum brakes. These magnets engage an armature plate, which then forces the brake shoes out against the inside of the drum. Surge brakes use hydraulics and work on their own, independent of the truck’s electrical system. Their operation is based on inertia. When the truck begins to slow down, the trailer pushes forward into the hitch. That physical pressure compresses a master cylinder built into the trailer coupler, which then pumps hydraulic fluid to the brake cylinders or calipers. Because one system is powered by electricity and the other by fluid pressure, their weak points and overall maintenance needs are very different. Electric Brakes: Fine-Tuning and Electrical Integrity Electric brakes are standard equipment for nearly all travel trailers and large, heavy-duty flatbed trailers. Since they depend on a good connection between the truck and the trailer, maintenance starts right at the hitch and extends all the way to the brake shoes. Adjusting the "Gain" on Your Brake Controller A key part of operating electric brakes is a setting that you control from inside the truck’s cab, not on the trailer itself. The “Gain” value on your brake controller sets the amount of electrical power sent to the trailer brakes. If the gain is set too low, the truck does all the braking work, which leads to your truck’s rotors getting too hot and your stopping distance increasing. Setting the gain too high means the trailer brakes will lock up easily. Routine truck trailer repair and safety checks involve resetting the gain any time the weight of your load changes significantly. A carefully adjusted gain ensures the truck and trailer brake together, preventing unnecessary stress on either vehicle. Troubleshooting "Grabby" or Locking Brakes A common complaint is that the trailer brakes feel “grabby,” meaning they engage too suddenly or violently with only a little pedal pressure. Often, something is causing a maintenance issue. Common reasons include: Corrosion on the electromagnets: If the trailer has been sitting unused, rust can form and cause the magnets to stick when engaged. Incorrect Gain settings: As mentioned earlier, improper calibration is a frequent culprit. Grease on the shoes: A failed wheel seal can let grease leak onto the brake components, leading to unpredictable braking action. During a professional trailer repair inspection, mechanics remove the drums to check that the magnets are wearing evenly and confirm that no oil or debris is contaminating the friction surfaces. Surge Brakes: Hydraulic Health and Fluid Management Surge brakes are most frequently seen on boat trailers (where electrical parts and water do not mix well) and on rental trailers (because the tow vehicle does not need a specialized controller). Checking Fluid Levels for Surge Couplers Surge brakes primarily fail due to low hydraulic fluid. As the master cylinder in the trailer's tongue or coupler is exposed to constant movement, seals wear, and moisture can enter the system. Routine maintenance requires checking the master cylinder reservoir fluid level; dark or cloudy fluid indicates moisture contamination, necessitating a full flush and replacement. Without sufficient, clean fluid, the surge coupler cannot generate the force required to activate the brakes, leaving the trailer brakeless. Inspecting the Moving Parts of the Coupler Since surge brakes work by the physical “sliding” movement of the coupler mechanism, that sliding part must be kept lubricated and clean. If the coupler rusts or jams up, the brakes might stay applied even when you are driving, or they may completely fail to engage when you slow down. The Common Ground: Shoe Adjustment and Wear The way the brake shoes are moved might be different, electricity for one, hydraulics for the other, but the shoes themselves need manual upkeep in both systems. Shoe Adjustment Intervals for Heavy-Duty Trailer Repair While some newer trailers feature self-adjusting brakes, many heavy-duty models still need manual adjustment. As the friction material on the brake shoes wears away, the space between the shoe and the drum increases. The result is a noticeable delay in braking response. For dependable safety, we advise having your brake shoes inspected and adjusted every 3,000 to 5,000 miles. During a trailer maintenance appointment, a technician uses a “star wheel” adjuster to move the shoes closer to the drum. This ensures that the trailer brakes immediately when you press the pedal. Which System is More Maintenance-Intensive? Surge brakes demand hands-on maintenance (checking fluid/grease). Electric brakes risk less obvious electrical failures (wiring, fuses, ground). For heavy loads, electric brakes offer a manual override for sway correction, but require electrical knowledge for troubleshooting. Surge brakes are simpler for the driver but need constant hydraulic system vigilance to prevent failure. Summary Checklist for Trailer Safety Keep your trailer operating at its best by following these simple guidelines: Annual Inspections: Have a certified professional examine your brakes and wheel bearings at least once a year, regardless of how many miles you have driven. Test Before You Tow: Always perform a quick “tug test” to confirm the brakes are working before you get out on the road. Watch for Corrosion: Check the 7-way electrical plug (for electric brakes) or your brake fluid lines (for surge brakes) for any signs of rust or damage. Listen: Squeaking, grinding, or clicking sounds are the most immediate indicators that truck trailer repair is necessary. Contact Mainline RV & Truck Service for Trailer Repair & More! Taking care of your trailer brakes is about more than just protecting your equipment; it directly impacts the safety of everyone sharing the road. If you are struggling with a malfunctioning brake controller, a leaking surge master cylinder, or you simply need a routine adjustment of your brake shoes, the experts at Mainline RV & Truck Service are ready to assist. We specialize in comprehensive trailer maintenance, truck trailer repair, and heavy-duty trailer repair services. Don't leave your stopping power to chance. Contact us online today .
By Mainline Truck Team March 10, 2026
Learn how to identify alignment vs. suspension-related irregular tire wear and enhance safety and performance. Call Mainline RV & Truck Service today.
By Mainline Truck Team March 2, 2026
Learn the importance of air brake winterization in Ohio, along with proven strategies to keep your system functioning. Contact Mainline RV & Truck Service.
By Mainline Truck Team March 2, 2026
Learn what black, white, and blue smoke from a diesel exhaust mean and when you need to seek semi-truck repairs. Contact Mainline RV & Truck Service.
By Mainline Truck Team January 5, 2026
Discover why the 3,000-mile rule is a myth and how to set the right truck oil change interval for your fleet. Contact Mainline RV & Truck Service today.
By Mainline Truck Team December 24, 2025
Learn what to expect from a commercial truck shop, from quick fixes and full services to fleet-focused value. Contact Mainline RV & Truck Service today.
By Mainline Truck Team December 24, 2025
Learn the essentials of heavy-duty truck service that improve performance, reduce downtime, and extend lifespan. Contact Mainline RV & Truck Service today.
By Mainline Truck Team December 22, 2025
Learn how to back up a motorhome with these expert tips, essential tools, and confidence-building strategies. Contact our motorhome repair shop for more.