Equipment

A Chip Spreader Designed for Paving Precision

October 2016, Government Fleet - Feature

by Staff

The LeeBoy CSV816 is the market’s first Tier 4 Final variable width chip spreader, according to VT LeeBoy. The company brands its equipment under the LeeBoy and Rosco names. Photo courtesy of VT LeeBoy
The LeeBoy CSV816 is the market’s first Tier 4 Final variable width chip spreader, according to VT LeeBoy. The company brands its equipment under the LeeBoy and Rosco names. Photo courtesy of VT LeeBoy

The LeeBoy CSV816 variable-width chip spreader offers a broad range of chipping options — from 1 foot to 16 feet — and is powered by a 275-hp Cummins Tier 4 Final diesel engine. It’s the market’s first Tier 4 Final variable chip spreader, according to manufacturer VT LeeBoy.

Another competitive advantage is the machine’s narrow width, which allows for easy transport without permits. The chip spreader also boasts a computer that can reliably maintain an accurate application rate of aggregate, regardless of changes in ground speed, according to the manufacturer.

Better View, Less Noise

The slide-out console station gives the operator an exceptional field of view for precise chipping, said Justin Chee, product engineer. A hydraulic fan drive reduces noise and saves horsepower by keeping the fan spinning at low RPM when conditions permit. But as the temperature builds up, the fan picks up speed as needed. An automatic fan reverse feature helps keep the fan clean from dust and rock buildup.

The chip spreader’s application rate can be changed at any time, even while chipping. The operator simply sets the rock size, type (pit or crushed), and pounds per square yard (PSY). Then, the computer will monitor the ground speed and control the gate opening size accordingly to allow consistent PSY flow as the ground speed changes. Gates automatically close when the machine is stopped.

“A sophisticated algorithm within the control system determines the gate size opening versus ground speed to meet the present conditions,” Chee explained.

LeeBoy CSV816 operator controls are designed to meet Ergonomics ISO 6682 standards. Photo courtesy of VT LeeBoy
LeeBoy CSV816 operator controls are designed to meet Ergonomics ISO 6682 standards. Photo courtesy of VT LeeBoy

Hydrostatic Drive Delivers Smooth Operation

The machine’s hydrostatic front-wheel-drive propel system ensures smooth starts and stops. The hydrostatic drive provides dynamic braking by de-stroking the pump, and also offers continuous variable range of torque and speed. Unlike a conventional transmission, the hydrostatic drive doesn’t need to be shifted. Changes in speed and direction are made more quickly. There’s continuous power flow with no interruption during a gear change.

“Hydrostatic drives also require less maintenance and generally last longer than conventional transmissions,” Chee said.

Time-saving features on the CSV816 include the auto-resume function, which allows operators to readily resume chipping from where they last stopped. Also, calibration of the machine is simple and can be verified in less than five minutes, Chee added.

Pressure transducers and cylinder position sensors provide accurate measurements for precise monitoring. The CSV816 CAN BUS electrical system reduces conventional wiring by 50% while delivering real-time diagnosis, according to VT LeeBoy.

With the optional telematics system, VT LeeBoy, dealers, or fleet managers can remotely check any machine system faults or engine faults and make a diagnosis without sending a technician out. They can also monitor the machine’s working status, set points, operational conditions, hydraulic system pressures, and GPS location. Moreover, the system allows for geo-fence security measures and can send e-mail alerts.

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