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Features :- Komatsu Bull Dozers
- 850J
Productivity --> John Deere Dozers Model -> 850J
* Turbocharged/after-cooled 6-cylinder John Deere PowerTech™ wet-sleeve diesel provides exceptional reliability, power, and torque.
* Full-featured hydrostatic drive train delivers full power turns, infinite speed range, infinitely variable track speeds, and automatic load sensing.
* Total Machine Control lets you precisely match machine response and operating characteristics to operator preferences for increased flexibility and productivity.
* Standard, LT, WT, and LGP configurations are available with inside-mount power-angle-tilt and outside-mount straight and semi-U blades.
* Purpose-built mainframes for PAT and outside-mount blades allow optimized component placement for uncompromised grading ability.
Comfort --> John Deere Dozers Model -> 850J
* Cab-forward design positions the operator close to the front for a more stable ride and unsurpassed visibility behind, below, and beyond the blade.
* Deluxe suspension armchair adjusts seven ways for all-day comfort. Adjustable armrests and foot pedals are standard.
* Ergonomically correct joystick gives intuitive, low-effort control of steering, forward/reverse travel, and ground speed.
* Exclusive TMC lets you customize decelerator mode and response, forward/reverse ground speed ranges, steering modulation, FNR shift rate, and forward/reverse speed ratios.
Uptime/Service --> John Deere Dozers Model -> 850J
* Best-in-class service access, same-side daily servicing, and 500-hour engine and 2,000-hour transmission and hydraulic oil and filter service intervals increase uptime.
* Separate hydraulic and hydrostatic reservoirs, eliminating the possibility of cross contamination.
* Fluid sample ports, remote drive system test ports, and onboard diagnostic messaging allow quick troubleshooting.
* Hydraulic-driven fan automatically speeds up or slows down, operating as needed to keep things cool. Helps conserve power and fuel, while reducing noise and radiator core wear.
* Operator station tilts a full 70 degrees in only minutes for wide-open access to internal components.
Specifications :- Komatsu
Bull Dozers
- 850J
| MANUFACTURER |
John
Deere |
| |
| MODEL |
850J |
| |
| DATE
OF SPECIFICATION |
May-07 |
| |
| ENGINE |
|
| |
| Manufacturer/Model |
John
Deere / 6090HT |
| |
| Net
Horsepower @ Rated rpm |
185
(138) @ 1800 |
| |
| #
Cylinders and Displacement cu in. (L) |
6 -
549 (9.0) |
| |
| Maximum
Torque lb ft |
Not
published |
| |
| TRANSMISSION |
|
| |
| Type |
Hydrostatic
w/direct drive |
| |
| Speed
Ranges |
Infinite |
| |
| Forward |
6.3
(10.1) |
| |
| Reverse |
6.3
(10.1) |
| |
| FINAL
DRIVES |
Double
reduction w/ planetary |
| |
| STEERING |
Dual-path
HS w/ctr rotation |
| |
| HYDRAULIC
SYSTEM |
|
| |
| Pump
Type |
Piston |
| |
| Pump
flow gpm (L/min.) |
46
(174) |
| |
| System
Pressure psi (kPa) |
3625
(24980) |
| |
| UNDERCARRIAGE |
|
| |
| Track
Gauge in.(mm) |
74"
(1880) |
| |
| Length
of Track on Ground in. (mm) |
109"
(2770) |
| |
| Std.
Grouser in. (mm) |
24"
(610) |
| |
| Ground
Contact Area sq in. (cm²) |
5,232
(33760) |
| |
| Ground
Pressure psi (kPa) |
7.61
(52.4) |
| |
| No.
of Track Rollers |
7 |
| |
| Track
Pitch in. (mm) |
8"
(200) |
| |
| Track
Shoes each side |
40 |
| |
| Track
Oscillation in. (mm) |
9"
(230) |
| |
| DOZER |
|
| |
| Blade
Width in. (mm) |
128"
(3250) |
| |
| Blade
Height in. (mm) |
56"
(1420) |
| |
| SAE
Blade Capacity cu yd (m³) |
7.29
(5.58) |
| |
| Blade
Lift Height in. (mm) |
45.3"
(1150) |
| |
| Digging
Depth in. (mm) |
23.6"
(599) |
| |
| Blade
width at Full Angle in. (mm) |
128"
(3250) |
| |
| Blade
Tilt in. (mm) |
29.6"
(752) |
| |
| DIMENSIONS |
|
| |
| Height
w/ROPS in. (mm) |
127.6"
(3240) |
| |
| Length
w/Dozer in. (mm) |
212"
(5380) |
| |
| Ground
Clearance in. (mm) |
16.1"
(409) |
| |
| CAPACITIES |
|
| |
| Fuel
Tank gal (L) |
98
(371) |
| |
| Hydraulic
Reservoir gal (L) |
28
(106.0) |
| |
| SAE
OPERATING WEIGHT LB (KG) |
40,165
(18219) |
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