Command, Control With Middle Weight Volvo Wheel Loaders

May 2012, Vol. 67 No. 5

The new L60G, L70G and L90G are the latest wheel loaders from Volvo Construction Equipment in the 13 to 17 ton class. Torque Parallel linkage combines power with precision making them ideal in material handling jobs and where fast work cycles are needed.

All three models boast a new electrically operated sloping engine hood design that improves rear visibility and, when opened, provides wide access to the engine compartment, making servicing and repairs easier.

Higher torque with lower emissions
These machines meet the new requirements of the Tier 4i emissions legislation. The wheel loaders are all fitted with a Volvo 6-liter, 6-cylinder turbocharged V-ACT (Volvo Advanced Combustion Technology) off-highway diesel engine, which features cooled gas recirculation and a particulate filter with active regeneration. The diesel particulate filter (DPF) temporarily holds the particulate matter and then incinerates it, further reducing emissions. This process is conducted without any loss of performance or operation. Producing between 161 and 173 horsepower, these units provide high torque at low engine speeds.

Built to perform together
The L90G wheel loader features 23 percent increase in lifting force and 19 percent improvement in breakout force for smooth operation and full buckets — resulting in faster cycle times and increased productivity.

Load-sensing hydraulics delivers power to hydraulic functions only when needed, eliminating unnecessary oil pumping. Fitted with high capacity axial piston pumps with variable flow, the working hydraulic pressure has been increased from 3,771 to 4,496 psi.

Transmissions feature the Volvo Automatic Power Shift (APS) concept, which ensures the loader always operates in the ideal gear by sensing engine and travel speed, kick-down, engine braking, and other factors. Offering operators a choice of four gear-shifting programs, APS results in more efficient work cycles with lower fuel consumption and wear. Power is delivered to the ground through heavy duty wet brake axles that offer high rimpull. In difficult terrain, operators can select the differential lock in order to transfer 100 percent of the available drive to the wheels, reducing tire slippage and offering maximum traction in soft or slippery conditions. Purpose-built, durable axle housings absorb all loading from the machine, reducing working stresses on the axle shafts for longer life.