From the user manual
Tips.
Enjoy your Hapert for years.
The most important maintenance tips. You will find all details in the user manual.
Maintenance tips.
- Wheel bolts: check that they are tight after the first trip and after every wheel change.
- Tyres, plug and lights: check regularly for wear, dirt and damage.
- Ball coupling and overrun device: clean and grease regularly.
- Battery (electric tipping): charge at least once a week with the Hapert charger, never with a fast charger.
- After contact with road salt: rinse with water.
- Every year: have your trailer serviced by your Hapert dealer. This is required to keep your warranty.
Tyre pressure and wheel bolts.
These values are for guidance. If in doubt, ask your Hapert dealer.
Wheel bolt tightening torque
| Wheel bolt | Spanner size | Tightening torque |
|---|---|---|
| M 12 x 1.5 | 17 (19) mm | 80 – 90 Nm |
| M 14 x 1.5 | 19 mm | 110 – 120 Nm |
Tyre pressure
The correct pressure depends on the type of tyre. The tyre size of your model is in the technical data PDF.
| Tyre size | bar | PSI | Max. load |
|---|---|---|---|
| 145/70R13 | 3 | 44 | 425 kg |
| 155/70R12C | 6.5 | 95 | 900 kg |
| 155/80R13 | 2.9 | 42 | 500 kg |
| 165R13C | 4.5 | 65 | 710 kg |
| 175R14C | 4.5 | 65 | 775 kg |
| 185/70R13 | 3 | 44 | 650 kg |
| 185/70R13C | 6 | 85 | 950 kg |
| 185R14C | 4.5 | 65 | 900 kg |
| 195/50R13C | 6.5 | 95 | 900 kg |
| 195/55R10C | 6.2 | 90 | 750 kg |
| 205/70R15C | 3.8 | 55 | 900 kg |
| 18.5x8.5-8 | 3.4 | 50 | 425 kg |
Full user manual.
PDF
User manual
Edition 11 · September 2026 · PDF · 5.4 MB. Applies to all Hapert trailers.