A wheel loader handles like a large materials machine, but it has one feature the compact loader does not: it folds in the middle. That is what makes it manoeuvrable, and that is what kills — the area between the two frames closes without warning, and without giving you a chance.
Your manufacturer’s manual prevails. This page gives the order of the steps and what is specific to this family; every figure — payload, tyre pressures, permissible slopes, capacities — must be read in your own manual.
1. On delivery, before you sign
- Walk around it before you sign: front and rear frames, articulation joint, arms, rams, hoses, tyres, cab.
- The articulation lock must be present and workable. It is a part that goes missing, and without it the machine can be neither transported nor serviced safely.
- The lift-arm brace must be there — the manufacturer consulted refers to standard ISO 10533, the same family of device as on compact loaders.
- Tyres: wear, cuts, valves, pressure. On a loader they carry the load and make the stability.
- Photograph what you find, with the truck in frame.
2. The articulation area — the hazard specific to this family
You never stand between the two frames with the engine running. One movement of the wheel, however slight, closes the joint. There is no warning noise and no reaction time: it is a shearing action.
The articulation lock exists precisely for this. It is fitted:
- for transport, so the machine cannot fold on the trailer bed;
- for any servicing, as soon as anyone has to go near the centre section.
And it is removed before driving — a loader whose joint stays locked no longer steers.
The manufacturer consulted also asks that servicing be done with the machine parked on firm level ground, secured against rolling and against articulation, key removed, with a sign marking the work in progress.
3. The lift-arm brace
As on the compact loader: you never go under raised arms without the brace in place. Not to grease something, not to unhook an attachment.
It goes in before you climb down. One hose lets go or one control gets brushed, and the arms come back down with all their mass.
4. Before the first start
- All fluid levels, machine on level ground: engine, hydraulics, transmission, coolant.
- Tyre pressures to the manual: under-inflated they run hot and the machine waddles; over-inflated it bounces.
- Find the articulation lock, the brace, the emergency exit.
- Check belt, mirrors and reversing alarm.
5. The first start
- Seated, belt on. A loader that rolls over protects the person who stays in the cab.
- Articulation lock removed before driving.
- About five minutes at idle before loading: cold hydraulics respond poorly and the transmission does not like load when cold.
- Dry run in a clear space: lift, crowd, steering, brakes.
6. Loading, travelling, tipping
Carry the bucket low. The manufacturer consulted is explicit: transport the load low and only raise it as you approach the tipping point. A high bucket moves the centre of gravity forward and upward — that is how a loader goes over the front on a brake application or a pothole.
- No sharp raising or dropping of a loaded bucket: the machine lifts at the back or dives at the front.
- Raising the arms slightly before attacking a heap puts weight on the front axle and limits wheelspin — it is the manual’s technique, and it saves wearing tyres out for nothing.
- Nobody within the machine’s working radius, neither in front of the bucket nor in the articulation area.
7. What stays true every day
- Never a passenger, never anyone in the bucket or on the arms.
- Set the arms on the ground before climbing down, engine off, key removed.
- On a slope: go up and down along the line of the slope, bucket low, never across it with a raised load.
8. Professional use
In France a loader falls under CACES R482 — category A up to six tonnes, category C1 beyond that for sequential-travel loading machines. A CACES card does not authorise you to operate: it is the employer’s authorisation to operate (article R.4323-56 of the Labour Code) that does, after medical fitness, a knowledge check and familiarity with the site.
Next
What makes a wheel loader last: tyres kept an eye on, the articulation joint and arm pins greased, and the service intervals held.