Retrofitting Coil Springs

Stronger coil springs can be retrofit to vehicle. Benefit to retrofitting is that vehicle no longer sags as much with the same net load and cargo. Axle load noted in the vehicle papers does not increase due to retrofitting and may not be exceeded. Possible increase in load capacity on vehicles with 800 kg load capacity goes up to 1000 kg, vehicles with 1000 kg load capacity to goes to 1200 kg. In this case the changed axle load must be noted in the vehicle papers.

If necessary, the corresponding group number must be changed by hand on the vehicle data plate. Always observe application of pull-spring of brake pressure regulator to vehicle spring. If retrofitting to another brake pressure regulator spring, the brake pressure regulator must be adjusted afterward. See ADJUSTMENTS in appropriate DISC article in BRAKES.