Onboard scales from Accuweigh were recently fitted to a modified utility vehicle to comply with OH&S requirements. The onboard scales are used as warning systems by monitoring the vehicle’s weight distribution to ensure the vehicle remains stable when being driven on both roads and rail lines. Gibson Tru-Body is an Australian owned company and builds customised road/rail vehicles at their Brendale factory in Brisbane’s north for various Rail Departments. These road/rail vehicles are normally fitted with track monitoring equipment but can also used to transport staff, materials and tools to and from different work sites along the rail lines.
To ensure even weight distribution at all times, two separate onboard scale systems were fitted to each vehicle. One set of onboard scales monitors the weight of materials stored on the vehicle’s tray and if the vehicle’s nominated tray carrying capacity is exceeded. The second set of onboard scale systems was used to monitor the weight on each of the four rail wheels to ensure correct weight distribution is achieved before the vehicle can be operated in rail mode.
The onboard scales send a signal to a controller that forced the following responses:
- For rail operation, power is completely cut to immobilise the vehicle
- For road operation, vehicle speed is limited to 15kph