JCB has unveiled two new systems for telehandlers designed to create machines compliant with the EN15000 regulations on longitudinal loaders that came into force last month.
The Adaptive Load Control system has been designed for the firm’s Loadall, Teletruk and Telemaster ranges and is intended to help reduce the risk of the telehandler tipping forward.
Under the new regulations, all telehandler equipment for European markets will be required to have some form of safeguard preventing a load being extended to the point it compromises the machine’s frontal stability. JCB group MD Tim Burnhope says simple cut-out systems that stop boom movement at dangerous angles and weights could create more danger, and so the firm has developed two separate and more complex systems to increase safety.
“On a high boom with a simple cut-out system, there is a risk that the jolt from the cut-out could tip the machine and lift its back wheels off the ground. As a result, we have developed Adaptive Load Control to meet the standard required without compromising on productivity,” he says.
Two options available
JCB has two variants of its adaptive load control system; a two-step system for its Teletruks and Loadalls with booms up to 5.5 m, and a progressive system for its larger side-engine Loadalls and Telemasters.
With the two-step system, instead of cutting out the boom extension when the lift reaches a maximum safe moment, the boom can be extended up a predetermined load moment threshold. At this point, the boom extension speed drops to a second, slower speed. This allows the operator to continue to extend up to the maximum level smoothly, preventing a jerky stop and the risk of tipping from the load inertia.
Meanwhile, with the progressive system, the boom speed is continually increased or decreased according to the weight on the back axle. JCB product manager Edward Heath says: “With an older telehander, you are dependent on the operator to make the judgements as to when a load is being extended safely or not. Here, an engine control unit looks at the machine’s working parameters and controls the hydraulics. Because the system slows down, rather than stopping abruptly, it gives the user confidence.”
Because EN15000 only applies to static loads, the system has been designed so that it is disabled when the vehicle is moving, meaning an operator can freely extend the boom as before, preventing a productivity decrease.