Driving a Loaded Truck Down Hills and Slopes: Gears, Brakes and Load Control

The road dips after the bridge, the truck is carrying a full house of furniture, and the brake pedal feels softer than it did at the top. Every driver who has done a few loaded runs knows that moment. Going down is where the load pushes hardest and where most brakes get abused.

The advice below is general. For your specific vehicle, follow the manufacturer's guidance and the instructions in the driver's manual.

Slow down before the slope, not on it

By the time you are on the slope, the weight is already pushing you. Brake gently on the flat, drop to a lower gear before the road tips down, and let the engine share the work.

A heavy truck needs more distance to stop than a small van. If you are carrying near the vehicle's limit, leave a much larger gap behind the vehicle in front. Never assume the road will stay clear.

Use the engine as a brake

Pick the gear you would use to climb the same hill. In a manual truck, change down early and keep your foot off the clutch. Coasting in neutral is dangerous, because the engine is no longer holding you back and you lose control.

If your truck has an exhaust brake or retarder, use it as the manufacturer describes. Many drivers also use short, firm presses of the brake rather than a long drag, because dragging heats the brakes and makes them fade.

1. Check the gear before the slope starts.
2. Brake firmly for a moment, then release.
3. Repeat only as much as needed, not a constant light press.
4. Stay in the same gear the whole way down.

Brakes that smell are brakes in trouble

A hot, sharp smell, smoke from a wheel or a pedal that sinks are warning signs. Pull off at the first safe spot and let the brakes cool. Do not pour cold water on hot brake drums. Check the fluid and air system as the manual describes. If anything looks wrong, stop and call for help instead of continuing.

A morning walk-round helps you catch problems before the slope. See checking your truck before a bulk move.

Keep the load stable

On a downhill, the load wants to slide forward. Straps that looked fine on flat ground can loosen, and a tall stack can lean. Stop at the top, walk round the truck and pull every strap tight. Check that heavy items are against the cab wall and low, and that nothing is stacked above the headboard.

Loose barrels, loose appliances and tall wardrobes are the usual problems. Our guide on securing a load with straps, ropes and tarpaulins shows the ties that hold.

Corners, wet roads and soft verges

A bend halfway down a slope is the worst combination. Slow down before the bend, steer smoothly and do not brake hard in the middle of the turn. On a wet road, everything takes longer: see driving a loaded truck in heavy rain.

In hilly places such as parts of Ibadan, narrow lanes and steep compounds make this even more important. Stop before you enter and look at the slope. If you cannot be sure the truck will stop, do not go in.

Stopping and parking on a slope

Apply the handbrake fully, leave the truck in gear, turn the wheels towards the kerb or the verge and put chocks behind the wheels if you have them. Never leave a loaded truck on a slope with only the handbrake holding it.

If you have to offload on a slope, our post on loading on a slope or soft ground gives you the full order of work.

How this fits with Sphere

When you receive a job request on Sphere, read the pickup and drop-off notes for slopes, steep access or narrow lanes. Ask the customer if you are not sure. Counter-offers should reflect the extra time and care a hard access takes. If you want to join as a driver, see drive and earn with Sphere.