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Bulldozer 850J

Product catalog summary

Overview: The DOZER850J is a high-performance construction machine designed for heavy-duty tasks. It features a robust engine, advanced transmission, and durable undercarriage, making it suitable for various challenging environments.

Engine Specifications: The dozer is powered by a John Deere POWERTECHTM 6081 turbocharged engine with an air-to-air aftercooler, compliant with Tier II non-road emissions regulations. It delivers a net power of 137 kW (185 hp) at 1,800 rpm and a gross power of 143 kW (192 hp). The engine has six cylinders and a displacement of 8.1 liters, providing a maximum net torque of 800 Nm at 1,400 rpm.

Transmission: The machine features an automatic, dual-path hydrostatic drive with a load-sensing feature that adjusts speed and power according to load conditions. It offers infinite travel speeds up to 10 km/h (6.3 mph) and includes ground-speed selection buttons for precise control.

Final Drives and Steering: The dozer uses double-reduction, planetary final drives for efficient torque transfer. It has single-lever steering with hydrostatic steering for full power turns and variable track speeds, enhancing maneuverability.

Braking System: The hydrostatic braking system stops the machine when the control lever is neutral or the decelerator is fully depressed. An automatic parking brake engages when the engine stops or the park lock lever is activated.

Hydraulic System: The load-sense hydraulic system operates at a relief pressure of 3,625 psi, with a piston pump delivering a maximum flow of 163 l/min. The system includes a 10-micron return oil filter for cleanliness.

Capacities: The fuel tank holds 371 liters, and the hydraulic system reservoir has a capacity of 105.6 liters. The cooling system and engine lubrication capacities are 34.5 liters and 26.5 liters, respectively.

Undercarriage: The seven-roller track frame includes sealed and lubricated track links and rollers for durability. The ground contact area is 33,794 cm², with a ground pressure of 52.4 kPa.

Blade and Ripper: The dozer is equipped with an outside dozer blade and a parallelogram ripper with hydraulic pitch adjustment. The blade has a width of 3251 mm and a height of 1422 mm, while the ripper offers a maximum penetration of 725 mm.

Optional Equipment: Various optional features are available, including heavy-duty grilles, noise-reduction packages, and different track configurations to suit specific applications.

Key Features: The DOZER850J includes a sealed electrical center, lift-cylinder guards, a rotary air pre-cleaner, and high-intensity work lights for enhanced reliability and performance.

Catalog excerpts

? Gr ? Gr oss Power oss Power 143 kW ? Net T ? Net T or or que que 800 Nm ? Operating W ? Operating W eight eight 20,077 kg >

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l /min (43 gpm)Filter, Return Oil10 micron Blade TypeOutside dozer ControlT-bar hydraulic-pilot two-function joystickCylindersHeat-treated, chrome plated, polished cylinder rods with hardened steel (replaceable bushings) pivot pinsCoolingConvective oil sump EN EN GINE GINE TypeJohn Deere POWERTECHTM 6081 turbochargerand air-to-air aftercooler; meets Tier II non-road emissions regulationsNet Power @ 1,800 rpm137 kW SAE (185 hp) Gross Power @ 1,800 rpm143 kW SAE (192 hp)Cylinders6Displacement8.1 C l (496 cu.in)Maximum Net Torque @ 1,400 rpm800 Nm (590 lb.ft) LubricationPressure system with full-flow...

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OPTIOIN OPTIOIN AL/SPECIAL EQUIPMENT AL/SPECIAL EQUIPMENT OPTIOIN OPTIOIN AL/SPECIAL EQUIPMENT AL/SPECIAL EQUIPMENT continued...Heavy-Duty Grille39 kg (86 lb) Noise-Reduction Package34 kg (75 lb) Front and Door Screens (ROPScanopy)84 kg (186 lb) Front and Door Screens (cab withair conditioner)79 kg (175 lb) Rear Screen (ROPS canopy)23 kg (50 lb) Rear Screen (cab with air conditioner)34 kg (75 lb) Side Screens (ROPS canopy)44 kg (98 lb) Side Screens (cab with air conditioner)54 kg (120 lb) Condenser Guard (cab with airconditioner)55 kg (121 lb) Limb Risers (ROPS canopy and cab)272 kg (600 lb)...

Open the catalog to page 3

Bulldozer 850J

Bulldozer 850J

Catalog excerpts

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