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Deere Upgrades Crawler Dozer Line

Wed June 07, 2000 - Northeast Edition
Construction Equipment Guide

Major improvements such as a new pinned crossbar; single-lever steering, direction and ground speed control; and six-way blade make the 750C and 850C series II dozers welcome additions to Deere’s expanding crawler dozer line.

More than 250 refinements have been made to the C-series dozers since their introduction in 1995. Both C-series II units will be available for sale this month.

The most significant change is the pinned front crossbar that eliminates the track frame diagonal braces, and greatly reduces trapped mud and dirt from the undercarriage area. Now, much less time is required to clean mud and dirt from the track area. The pinned crossbar also contributes to more precise control of the blade for easier grading.

For the first time, ground speed adjustments are incorporated into a single lever that controls steering and direction. The SSD (speed, steer and direction) lever allows the operator to control these three major functions without moving the left hand from the control lever.

Another new feature is the ability to select a reverse speed ratio expressed as a percentage of forward travel speed. This allows the operator to set reverse travel speed for the most efficient operation.

Like Deere’s H-series crawlers, controls for the C-series II transmission and steering are intuitive and easy to operate. Response rate for steering, direction change, ground speed changes and decelerator control are very smooth and allow precise control.

The brake pedal control also has been improved to operate similar to the H-series dozers. When the brake pedal is released after application, the crawler will resume movement at the selected speed setting. Unlike their predecessors, cycling the SSD lever through neutral after braking is not required on the C-series II dozers.

The 850C series II is available with a factory option Power Angle Tilt (PAT) six-way blade on standard long track (LT), wide track (WT) and low ground pressure (LGP) models and provides improved visibility, strength and balance for improved grading and durability. The 750C will continue to have a factory six-way blade available on both the standard and LGP models. Both feature a new dozer control valve for easier, more precise, blade metering control.

The 750C and 850C series II cab features floor-to-ceiling tinted glass doors with narrower, repositioned latches, and a 6.4-centimeter (2.5 in.) wider front window that gives operators a panoramic view of their work ahead. With 50 percent more glass, working on finish-grading jobs and around obstacles is easier with the C-series II dozers. Together with additional seat choices, better cab pressurization, larger rearview mirrors, and an optional noise package, these improvements help the operator become even more productive.

The C-series II crawler dozers also feature a quiet, dual-path hydrostatic transmission that makes it more productive, maneuverable and versatile.

Powering the 750C series II dozer is a John Deere-built Powertech 6.8- liter engine, providing 104.4 kilowatts (140 hp). The 850C series II is equipped with a Powertech 8.1-liter engine that supplies 138 kilowatts (185 hp). The turbocharged diesel engines deliver enhanced reliability, improved fuel economy and reduced oil consumption and noise.

In addition, the engines meet all applicable United States Environmental Protection Agency, California Air Resources Board and proposed European Economic Community emissions standards for off-road diesel engines.

Other C-series II enhancements include: a self-adjusting serpentine belt drive on the engine; sealing of electrical fuse cover; easier access to filters; better seals on track chain; heavier carrier-roller shaft; and thicker rear sheet metal, all of which contribute to a more reliable machine.

The 750C and 850C series II crawler dozers are backed by the CounterParts program, a strong commitment to parts availability. Based on the idea that critical parts should be at dealerships when customers need them, anyone who buys or rents a 750C or 850C series II from a certified CounterParts dealer can count on machine-down parts that can be replaced in under two hours being at the dealership — or they are free.

The CounterParts program is part of Deere’s Total Repair Cost Management (TRCM) strategy for customer support. TRCM is a lineup of ongoing programs and services that help control costs, preempt downtime and reduce stress that sometimes accompanies owning and operating equipment.

For more information, 800/503-3373 or visit

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