SPEC

/956

/10/

10-8

50J

Doze

r (R

ev2)

What makes the 850J Dozer a great performer...What makes the 850J Dozer a great performer...

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850J

CRAWLER SPEEDVS

GROUND PULLUsable pull will depend

on traction and weight of tractor.

DRAW

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S P E E D

• Gross Power: 143 kW• Net Torque: 828 Nm

• Operating Weight: 20 800 kg (Outside)

• Sealed electrical center protects connections from dirt, debris,

and moisture, ensuring maximum reliability and uptime.

• Lift-cylinder guards keep hydraulic hoses and cylinders out

of danger.

• Rotary air pre-cleaner ejects dust to maximize filter life and

includes a trash guard to prevent debris entry.

• Hinged bottom guard opens easily for quick and convenient

clean-out.

• High-intensity work lights are positioned up high for superior

illumination and protection.

• Greaseless center crossbar pin joint provides long life with

less maintenance.

• Sealed electrical center protects connections from dirt, debris,

and moisture, ensuring maximum reliability and uptime.

• Lift-cylinder guards keep hydraulic hoses and cylinders out

of danger.

• Rotary air pre-cleaner ejects dust to maximize filter life and

includes a trash guard to prevent debris entry.

• Hinged bottom guard opens easily for quick and convenient

clean-out.

• High-intensity work lights are positioned up high for superior

illumination and protection.

• Greaseless center crossbar pin joint provides long life with

less maintenance.

All dimensions are shown in millimetres, unless otherwise stated between brackets. Under our policy

of continuous improvement, we reserve the right to change specifications and design without prior

notice. Photographs featured in this brochure may include optional equipment.

E-mail: sales@bellequipment.com • www.bellequipment.com

BELL INTERNATIONAL : Tel: +27 (0) 35 907 9431Tel: +27 11 928 9700

Tel: +33 555 89 23 56

Tel: +7 495 771 20 27

Tel: +49 6631 911 30

Tel: +34 918 796 019

Tel: +44 1283 712 862

D O Z E R850JD O Z E R850J

PARALLELOGRAM RIPPER Hydraulic Pitch Adjustment and ESCO Ripper TipsWeight 2032 kg (4,480 lb)P Maximum penetration 724 mm (28.5 in)Q Maximum clearance under tip 610 mm (24 in)R Overall length, lowered position 1625 mm (64 in)R1 Overall length, raised position 1525 mm (60 in)S Overall beam width 2400 mm (94.5 in)T Slope angle (full raise) 24 degreesU Ripping width 2145 mm (84.5 in)V Distance between shanks 1040 mm (41 in)

ENGINEType John Deere PowerTech PlusTM 6081 with variable-geometry

turbocharger, exhaust gas recirculation, and air-to-air aftercooler; certified to EPA Tier 2 emissions

Gross Power @ 1,800 rpm 143 kW SAE (192 hp)Net Power @ 1,800 rpm 137 kW SAE (185 hp)Cylinders 6Displacement 8.1 l (550 cu.in)Maximum Net Torque @ 1,500 rpm 828 Nm (611 lb.ft)Lubrication Pressure system with full-flow spin-on filter and

oil-to-water coolerAir Cleaner Dual-stage dry type with tangential unloaderElectrical System 24 volt with 80 amp alternator (cab)Batteries (two 12 volt) 950 cold-cranking amps, 190 min reserve capacityCooling Fan Automatic Reversing Cooling FanCooling Fan Filter, Return Oil 10 micron

TRANSMISSIONAutomatic, dual-path, hydrostatic drive; load-sensing feature automatically adjusts speed and powerto match changing load conditions; each individually controlled track is powered by a variable-displacement piston pump and motor combination; travel speeds (forward and reverse) infinite to 10km/h (0 to 6.3 mph); ground-speed selection buttons on single-lever steering and direction control;independently selectable reverse speed ratios 80%, 100%, 115%, or 130% of forward ground speed;decelerator pedal controls ground speed to stop

Type Dual-path hydrostaticSystem Relief Pressure 45 850 kPa (6,650 psi)Filter, Charge Oil 10 micronCooling Oil-to-airTravel Speeds (forward and reverse) 0–10 km/h (0–6.3 mph) or

11 km/h (6.8 mph) max (optional)

FINAL DRIVESDouble-reduction, planetary final drives transfer torque loads over three gear sets; mounted independentlyof track frames and dozer push frames for isolation from shock loadsTotal Ratio 44.7483 to 1 Drawbar Pull

Maximum 344 kN (77,300 lb)@ 1.9 km/h (1.2 mph) 167 kN (37,500 lb)@ 3.2 km/h (2.0 mph) 120 kN (27,000 lb)

STEERINGSingle-lever steering, speed, direction control, and counterrotation; full power turns and infinitelyvariable track speeds provide unlimited maneuverability and optimum control; hydrostatic steeringeliminates steering clutches and brakes

BRAKESHydrostatic (dynamic) braking stops machine when the direction/steering control lever is moved toneutral or the decelerator is depressed to the end of travelType Hydraulic

AUTOMATIC PARKING BRAKEExclusive safety feature engages wet, multiple-disc brakes whenever the engine stops, whenever thedecelerator is depressed to the end of travel, or whenever the park lock lever is placed in the start orneutral positions and motion is detected; machine cannot be driven with brake applied, reducing wearout or need for adjustmentType Spring-applied, hydraulic release

HYDRAULIC SYSTEMSystem Type Load sense System Relief Pressure 3,625 psi (24 933 kPa)Differential Pressure 275 psi (1 896 kPa)Pump Type PistonPump (74 cc) 174 l/min (46 gpm)Maximum Flow @ Unloaded High Idle 163 l/min (43 gpm)Filter, Return Oil 10 micronBlade Type Outside dozer

HYDRAULIC SYSTEM continued....Control T-bar hydraulic-pilot two-function joystick, (with push button

angle function for PAT)Cylinders Heat-treated, chrome plated, polished cylinder rods with

hardened steel (replaceable bushings) pivot pinsCooling Convective oil sump

CAPACITIESFuel Tank with Lockable Cap 371 l (98 gal) Cooling System with Recovery Tank 35 l (9.2 gal) Engine Lubrication, Including Filter 26.5 l (7.0 gal) Final Drive (each)1st Reduction 8.0 l (2.1 gal)2nd Reduction 16.3 l (4.3 gal)Hydraulic System Reservoir 105.6 l (27.9 gal)Hydrostatic System Reservoir 105.6 l (27.9 gal)

UNDERCARRIAGESeven-roller track frame with front and rear track guides and sprocket guard; John Deere Dura-TraxTMfeatures deep-heat-treated, sealed, and lubricated track links and through-hardened, sealed, andlubricated rollers for maximum wear resistance; sprockets are segmented; extreme-duty shoes stands;full length rock guard

Blade Type Outside dozer Chain sealed and lubricatedGrouser Width 610 mm (24 in)Shoes (each side) 40 Ground Contact Area 33 755 cm2 (5 232 sq.in) Ground Pressure 52.5 kPa (7.61 psi) Length of Track on Ground 2 770 mm (109 in) Track Gauge, Standard 1 880 mm (6 ft 2 in) Oscillation at Front Roller ±114 mm (±4.5 in) Track Rollers (each side) 7 Track Pitch 203 mm (8 in)

SAE OPERATING WEIGHTSBase weights were computed for units with standard equipment, rollover protective structures, fullfuel tanks, and 79 kg (175 lb) operators.Blade Type Outside dozerBase Weight (incl. ripper) 20 252 kg

BLADE WEIGHTSIncludes push beams, trunnion mounts, straight end bits, C-frames, angle and tilt cylinders where applicable.Semi-U 1326 kg (2,923 lb) Push Beam Assemblies for Straight or Semi-U Blades (without blade) 1672 kg (3,687 lb)**Included in SAE operating weights

BLADE CAPACITIESBlade Type Outside dozer Semi-U 3251 mm (128 in)/

5.57 m3 (7.29 cu.yd)

OPTIONAL/SPECIAL EQUIPMENTBlade Type Outside DozerTracks – Dura-Trax™ Lubricated

Chain with Split Master Link,Single-Bar Grousers, andExtended Life Undercarriage

560 mm (22 in) Extreme Duty 155 kg (341 lb)610 mm (24 in ) Moderate Duty in base*610 mm (24 in) Extreme Duty 307 kg (676 lb)760 mm (30 in) Moderate Duty N/A760 mm (30 in) Extreme Duty N/A910 mm (36 in) Moderate Duty N/A910 mm (36 in) Extreme Duty N/A

Final Drive Seal Guard 70 kg (155 lb)Retrieval Hitch* 52 kg (114 lb)

OPTIONAL/SPECIAL EQUIPMENT continued....Drawbar, Extended Rigid 130 kg (286 lb)Heavy-Duty Grille 39 kg (86 lb)Front and Door Screens 79 kg (175lb)Rear Screen 34 kg (75 lb)Side Screens 54 kg (120 lb)Condenser Guard 55 kg (121 lb)Limb Risers 272 kg (600 lb)

DIMENSIONSBlade Type Outside dozer A Overall Height to Roof 3180 mm (125 in) Overall Height to Exhaust Stack 3190 mm (125.5 in) B Tread Depth with Single-Bar Grouser Moderate Duty 65 mm (2.6 in) Extreme Duty 72 mm (2.8 in) D Blade Width 3251 mm (128 in)E Blade Height 1422 mm (56 in) F Blade Lift Height 1150 mm (45.3 in) G Blade Digging Depth 600 mm (23.6 in) H Blade Tilt (uses tilt jack) 753 mm (29.6 in) I Overall Length with Blade* 5377 mm (212 in) *Optional extended drawbar adds 241.5 mm (9.5 in)

OPTIONAL/SPECIAL EQUIPMENT continued....Lift-Cylinder Guards 80 kg (176 lb)Blade Brush Guard 87 kg (192 lb)Tank Guard 323 kg (712 lb)Front Counterweight 397 kg (875 lb)Rear Counterweight 449 kg (990 lb)*Included in SAE operating weight.

D O Z E R850J D O Z E R850J