There's a VOLVO NH Service Manual PDF above the page.
In Europe, Volvo Truck manufactures FH cabless trunk vehicles; in America, the new VN towed tractors. And here is the new news: another model has started in Australia; she was assigned the NH index. NH has a cabin from VN, and the chassis from FH.
Volvo NH exists in various versions (truck tractor, cargo truck, dump truck), but they all have one wheel formula - 6 × 4. Try differently move the trailer and two more trailers! The electronic Volvo D12A engine develops 380 or 420 hp.
Work on this project began in 1989, most of the calculations were performed by Swedish engineers using a CAD computer system