A ten-minute walk-around a driver can do, and a quarterly shop check that measures what the walk-around cannot. For loaded trucks on South Plains roads
A work truck's brakes carry more, stop more often, and get hotter than a car's, and they get inspected less because the truck is always working. A brake failure on a loaded truck is a serious event, and almost every one we see had warning signs weeks earlier that nobody was looking for. This is a two-level checklist: what the driver can do at the yard, and what needs a lift.
The driver walk-around, monthly
- 1Pedal feel, engine off. Press the pedal firmly a few times. It should be firm and consistent. A pedal that sinks slowly while held, or firms up only after pumping, goes on the list for the shop.
- 2Pedal feel, engine on. The pedal should drop slightly when the engine starts as the booster takes over. No change means a booster or vacuum problem.
- 3Reservoir level. Look, do not top up. A dropping level is either pad wear or a leak.
- 4Wheel temperature after a drive. With the back of a hand near each wheel, not on it. One wheel much hotter than its partner is a dragging brake.
- 5Look through the wheels. Pad thickness on the outer pad is often visible. Rotor surface should be smooth, not grooved or blue.
- 6Look at the inside of each wheel for fluid or grease streaks.
- 7Parking brake. Apply it on a slope. It should hold within a reasonable number of clicks.
- 8Warning lights. Red brake, amber ABS, and any trailer brake controller fault.
- 9Noise. Squeal while rolling, grinding on stops, clunks when braking from reverse.
- 10Trailer brakes, if the truck tows. Manual override on the controller should slow the trailer alone on a test.
Write the findings down with the date and the odometer reading. A log that shows the reservoir dropping a little every month is a log that predicts the brake job before the light comes on.
The shop check, quarterly or by mileage
- Pad thickness measured inner and outer at every wheel, in millimetres, recorded.
- Rotor thickness measured against the stamped minimum. Rotors on a loaded truck wear faster than on a car and are often the part that decides the job.
- Rear drums pulled and measured on trucks that have them.
- Caliper slide pins and piston movement checked.
- Hoses flexed and inspected, lines checked for scale, particularly on trucks that run caliche. Brake hose inspection covers why.
- Fluid moisture tested. A truck that tows in this heat should be on fresh fluid.
- Parking brake adjustment.
- Wheel bearings checked for play while the wheel is off.
What the numbers tell you
Recording pad thickness every quarter lets you see the wear rate. A truck that loses a millimetre a quarter can be scheduled months out. A truck that lost three millimetres since the last check has something wrong: a sticking caliper, a heavier route, or a driver who rides the brakes. Either way, you found it before it became a rotor and a caliper.
Scheduling it
Several trucks back to back at the shop is faster than one at a time over a month. Call ahead with the units and we line up any parts the last inspection flagged so the truck goes out the same day. A preventive maintenance schedule that sticks fits this into the rest of the plan.
Frequently asked questions
How thin is too thin for a work truck pad?
Thinner pads have less material to absorb heat, and a loaded truck makes more heat. We recommend replacing earlier on a working truck than on a car, and we will give you the number for your truck.
Should the fluid be changed on a schedule?
Test it and change it when the moisture content says to. For a truck that tows in summer, that is usually more often than the manual interval.
Can drivers check pads through the wheel reliably?
As a screening check, yes. The inner pad is often thinner than the outer and cannot be seen, so the shop measurement is the one that counts.
Fleet brake service scheduled back to back at 13209 Frankford Ave, Suite 29, Lubbock. Call (806) 458-2709 with the units and we will set it up. Drivers make the trip in from Littlefield and across the South Plains for it.
Need this handled today?
Bring it to the shop.
Tire, brake and full auto repair at 13209 Frankford Ave, Suite 29, Lubbock, TX 79424 — serving drivers from Lubbock, Wolfforth, Shallowater, Slaton, Idalou and the surrounding South Plains.