Yale's new PSI engine

Yale has announced the completion of an engine alteration program across its entire 2.0 to 3.5 T LPG counterbalance forklift truck range.

The changes offer customers a more powerful and efficient engine with improved productivity while lowering the total cost of ownership, according to the manufacturer.

Yale has replaced the previous Mazda 2.2 l engine with a 2.4 l Power Solutions International (PSI) alternative for its GLP20-35VX, GLP20-25LX and GLC20-35VX trucks.

Matthew Allen, Yale solutions manager - counterbalance product, explains: "Compared to their automotive-derived equivalents, industrial engines in lift trucks are more powerful, fuel efficient, quiet, reliable and long-lasting. Much of this is down to the fact that they operate at lower RPM and this gives significantly more low-end torque - which is ideal in materials handling.

"Yale has worked with PSI for more than two and a half years to develop engines that are tailored to meet the demands of each application, incorporate the latest technologies for peak performance and surpass the performance of previous engines.

"Over 30,000 hours of testing, incorporating a series of simulations, reliability measurements and engine dyno testing, have been completed on the new engine and after each highly accelerated life test (HALT) the engines were disassembled and inspected to verify that they continued to meet durability expectations."

Yale claims the 2.4L PSI LPG engine offers a number of benefits to both the operator and the fleet manager, including reduced noise levels and improved serviceability.

The new industrial engines also offer a choice of performance modes for greater flexibility. In most cases, there are three options - high performance (HiP), medium economy (ECO) and high economy (ECO-eLo).

The trucks will normally be shipped in ECO-eLo mode, which will be displayed on the dashboard. However, this can easily be changed by the owner or supervisor - but not the driver - using a password.